1. No category

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Tech n i cal Data
Westin ghouse Electric Corporation
Distribution a nd Control B u si n ess U n it
E l ectrical Components Division
Pittsb u rg h , Pen n sylva n i a , U . S . A. 1 5220
29-220
Pag e 1
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
5 to 1 600 Am peres
1 500 to 1 50,000 Am peres I. C.
lP
ar
tM
an
ua
ls
April 1 99 1
S u persedes Tec h n ical D a t a 29-220,
pages 1 -2, dated Feb r u a r y 1 988
M a i l e d to: E, C/29-200A
d
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Selector Guide for Navy Circuit Breakers
Breaker
Type
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tri
ALB-1
Specification
MIL-C- 17588
I
Hi-Shock
Spec
MIL·S-901
I
Voltage
Rating
No.
1 of
Inter·
rupt1ng
Ratmg,
Amperes
Poles
1
2,500CD
5,000CD
50
NLB-1
MIL-C-17588
MIL-S-901
AQB-A50
MIL-C-17361
MIL-S-901
3
10-
50
NQB-A50
MI L-C-17361
MIL-S-901
3
10-
50
AQB-A100
MIL-C-17361
MI L-S-901
2, 3
15- 100
NQB-A100
MIL-C-17361
MIL-S-901
2, 3
100
AQB-A101
MI L-C-17361
MIL-S-901
3
15- 100
100
NQB-A101
MIL-C-17361
MIL-S-901
3
AQB-A250
MI L-C-17361
MI L-S-901
2, 3
125- 250
NQB-A250
MIL-C-17361
MIL-S-901
2, 3
250
L
1
Tnppmg
Elements
I
1
Page
�
Ther
Magnetic
V De
V Ac
V De
V Ac
V De
V Ac
2.500
5,000
2,500
5,000
Thermal
Magnetic
None
11
250 V De
500 V Ac
10,000
15,000
Thermal
Magnetic
17
None
17
21
125
125
250
500
250
500
None
5
11
250
500
250
500
V Ac
V De
V De
V Ac
10,000
15,000
Thermal
Magnetic
250
500
250
500
V De
V Ac
V De
V Ac
None
21
15,000
20,000
Thermal
Magnetic
29
None
29
250 V De
500 V Ac
AQB-L400
MIL-C- 17361
MIL-S-901
3
250- 400
500 V Ac
150,000
Thermal
Magnetic
Fuses
Thermal
Magnetic
Fuses
Electrical
AQB-LL400
MIL-C-17361
MIL-S-901
3
250- 400
500 V Ac
100,000
Electrical
41
AQB-A1601
MI L-C-17361
MIL-S-901
3
500-1600
500 V Ac
75,000
55
NQB-A1601
MIL-C-17361
MIL-S-901
3
1600
500 V Ac
Thermal
Magnetic
None
AQB-LF100
MIL-C-17361
MIL-S-901
3
15- 100
500 V Ac
100,000
AQB-LF250
MI L-C-17361
MIL-S-901
3
125- 250
500 V Ac
100,000
CD
A 5 ampere breaker has an interrupting rating of 1500 amperes Ac or
De.
35
37
41
55
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Tech nical Data
29-220
Page 2
ua
ls
D es c r i p t i o n
These molded case Navy circuit breakers
provide both overload protection for con ­
ductors a nd short circuit protecti o n for a l l
circuit elements such a s conductors, motors
and starters. They also serve as m a n u a l dis­
con necting means as well as circuit pro­
tectors.
All Westing house c i rcuit breakers in this
Technical Data meet a pplicable N avy spec­
ifications fo r "hi-sh ock". These m a n u a l l y
operated breakers a re rated f r o m 5 to 1 600
a m peres with interrupting ratings from 1 ,500
to 1 50,000 a m peres. ( See "selector g u i de"
on p a g e o n e f o r r a t i n g s a n d N a v y
specifications.)
an
Operating Handle
Shown In
--,;...,;-�!--- Off Position
tM
Desi g n Features
Westing house Navy circ u i t breakers retain
all the features of sta ndard comm erc i a l type
A B De- ion breakers listed on the next page
under "standard features." B u ilt to Navy
specifications, they i ncorporate the follow­
ing Navy requirements:
Spe c i f i c N a vy F e a t u r e s
Front view of assembled AOB-A250 Navy circuit breaker. Note that the shock resistant material (MAI-60)
used for housing and cover is light gray.
ar
R e s i s t a n t Mo l d e d C a se:
Housing consists of rear base section a n d
cover m o l ded of glass a l kyd mate r i a l . This
material, reinforced g l a s s f i l led therm oset­
t i n g p l a st i c , h a s v e r y h i g h m e c h a n i c a l
strength ( shock a n d i m pact resistance), i s
both f i r e a n d m o istu re-resistant and pro­
vides exce l l ent d i e l ectric cha racteristics.
lP
G) Sh o c k
@ A n t i -Sh o c k
------- Terminal Studs
ca
D e vi c e: I nertia weight
over center pole holds trip bar i n latched
position u n der shock conditions but does
not prevent thermal or magnetic trip u n its
from fu ncti o n i n g on overload and short
circu its.
Block
,----- Mounting
Mounting Studs
Q) C a l i b rated fo r 50'C: All
tri
Navy break ­
ers are c a l i brated for shi pboard i n stall ation
at 50'C a m bient.
@) Inte r c h a n g e a ble Tr i p U n it s : All ther­
,----- Terminal
Mounting Block
@ Plug -in
lec
m a l and magnetic trip u n its i n AQB circuit
breakers are encased i n sealed, self-con ­
tained u n its that are i nterchangeable with
other trip u n its of d ifferent ampere rati ngs
within the same frame size.CD
.E
C o n n ec t o rs: All AQB break­
ers are desig ned for easy plug - i n i nstal l a ­
tion. P l u g - i n type connectors a r e built i nto
the base of the breaker for use with molded
mounting blocks complete with studs. For
front connection, pressure-type cable ter­
minals are used i n stead of plu g - i n con­
nectors.@ ALB breakers have a clamp ter­
minal on the l i n e end to receive panelboard
bus stab projections.
I nterchangeable trip units are n o t available in the A 1 01,
ALB-1 or A50.
All A101 and A50 breakers have plug-in connectors.
Front or rear connectors determined by mounting base
selected.
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CD
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®
,---- Plug-In Studs
L----
Slip Type
Connectors
Rear view of breaker showing terminal blocks for switchboard mounting. (Term inal block attached at
line end of breaker and remo ved from load end.)
Westing house E l ectric Corporation
Distribution and Control Busi ness U n it
E l ectrical Components Division
Pittsburgh, Pennsylva n i a , U . S .A. 1 5220
April 1 991
.c
om
Westinghouse Electr ic Cor por ation
D i stribution and Control Busi ness U n it
E l ectrical Compone nts Division
Pittsbu rg h , Pennsylva n i a , U . S.A. 1 5220
Standar d Featur es
G) Corr osi o n - R es i stant:
@ Positive
Posi t i o n I n d icati o n : Posi­
tion of handle always ind icates ON, O F F, or
T R I PPED.
Bear i n g S ur faces: Dissi milar
metals are used to ·prevent bearing wear and
elimi nate sticking.
ca
lP
ar
@ De-ion
A l l o y Co ntacts: Speci a l silver
alloy contacts prevent sticking a n d weld i n g ,
i ncrease contact l i f e and i nsure l o w resis­
tance when carrying f u l l - rated load.
@ Quick- M ake,
Arc Chute
Removed
tri
Q u i c k - Br e a k O v er
Center Tog g l e M ec h a n i s m : Provides
quick, positive action in opening and c l os­
ing of c i rc u its, prevents "teasi ng" of con­
tacts and reduces contact wear.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
tM
@ Fr ee
@ S i lver
Pa ge 3
an
All parts are
specially treated to resist corrosion. Fung us­
moisture resistant treatments for severe at­
mospheres are available as modifications.
Ar c Quencher s: This West­
ingho use development consists of a series
of grid plates mounted in para llel between
supports of i nsu lating materia l . The slots i n
the steel plates are directly over t h e contacts
and draw the arc from the movi ng contact
u p i nto the divided chamber where it is con­
fined, divided, and extingu ished.
29-220
ua
ls
5 to 1 600 Am peres
1 500 to 1 50,000 Am peres I . C.
April 1 99 1
Supersedes Tech n i cal D a t a 29-220,
pages 1 -2, dated October 1 978
Mailed to : E, C/29-220A
Technical Data
(j) C o m pl ete l nter po l e B arr i er s: I nsure
interna l
@ Common
flas hovers
when
fau lts
lec
aga inst
occur.
Tr i p: Two and three-pole
u n its have i nsulated common trip bar that
opens all poles simu ltaneously when a n
overload occurs on a ny one, t h u s eliminat­
ing possibility of single- phasing.
.E
® Tested
Accur acy: A l l tripping mem­
bers have g ro u n d a nd po l i shed latch s u r­
faces heat treated to prevent g a l l i n g or later
distortion. A l l pa rts a re tested i n tempera­
tu re-control l ed atmosphere to assu re cor­
rect ca l i bration and p e rfect mati n g . Each
breaker is thoro u g h l y tested.
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@ Factory
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Sealed: Smal ler breakers are
factory sealed to prevent tampering with
cal ibration. I ntercha ngeable trip u n its are
individ ually sealed.
�-- Molded
Operating
Handle
Removed
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Technical Data
29-220
Page 4
G en eral O r d e r i n g I n fo rmatio n
When ordering Westing house N avy circuit
breakers, consult the check list below t o
m a ke sure y o u have provided correct infor­
mation. You should specify:
ua
ls
Appl icatio n
Designed primarily for circuit protection, Westi ng house N avy circuit breakers are used in
l ig hting and power panels, switchboards, distribution centers and load centers aboard
ship. The photograph below i l l ustrates the use of molded case circuit breakers i n a typical
Navy switchboard.
1 . Quantity, Westi n g ho use Pa rt N u m b e r
a n d N ational Stock N u m be r of:
a. Com plete breaker or frame, trip u n it,
fuses (where required) and/or attachments
where ava i l able.
b. Pl u g - i n mounting block or front con­
necting cable term inals.
an
c . Spare breakers or trip units. (usua lly one
required for each ten u n its or fraction there­
of of each current rati n g . )
d . Technical M a n u a ls.
tM
2 . S h i pment:
S pecify transportation means, method of
packaging and preservation, and required
shipping date.
4. I nspectio n :
I n d i ca t e w h e t h e r G o v e r n m e n t S o u r c e
i nspection i s requ i red at factory p r i o r to
shi pment
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tri
ca
lP
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3 . Drawings:
Specify quantity of outline or master plan
drawings required.
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Westinghouse E l ectric Corporation
Distribution and Control B u s i ness U n it
E l ectrical Compone nts Division
Pittsburgh, Pen nsylva nia, U,S.A. 1 5220
April 1 991
"""''
.c
om
Westin ghouse Electric Corporation
Distribution a n d Control B u s i n ess Unit
E l ectrica l Com ponents D ivision
Pittsburgh, Pennsylva n i a , U . S .A. 1 5220
Technic a l Data
29-220
Page 5
Types ALB- 1 , N LB- 1 , 1 2 5 Volts Ac a n d De,
50 Am peres M a x i m u m , 5000 Am peres I. C.
ALB-1 an d NLB-1 Breaker s
Specification: MIL-C-17588
5-50 Am peres, 60 or 400 Cyc l e
1 2 5 Volts Ac or De S i ng l e Pole
List Prices Refer to Price List 29-020
Circuit Breakers- Net Weight: 8 oz.
Ampere
- _l'l<J!ir1[_
5
10
15
20
25
30
35
40
50
50
Type
tM
ar
breaker. Note clamp
type stab terminal for
panelboard mount­
ing at line end and
pressure type termi­
nal for front con nee·
tion at load end.
Moun tin g Bases
Type
ca
In terruptin g Ratin g
1 0-50 Amp U n its : 5,000 Amps Ac a n d 2500
Amps De
5 Am p U n it: 1 , 500 Amps Ac o r Dc
Single breaker, front panel supported
Single breaker, surface mounted
Two breakers, front panel supported
De, single phase0 and part (%) of
combination for 3-phase@
Part (213) of combination for 3-phase
application@
3-phase panel application@)
De, single phase0 and part (VJ) of
combination for 3-phase@
lec
tri
H i g h s h ock N avy ALB-1 c i rc u it brea kers are
designed for s h i pboa rd protection of s i n g l e
phase Ac a n d D e c i rcu its o r th ree- phase Ac
c i rc u its when breakers a re c o n n ected by h a n ­
d l e yokes fo r 2 a n d 3-po l e operat i o n .
T h e N L B- 1 breaker is the non-automatic de­
sign of the ALB- 1 . S i nc e the tripping ele ment
is om itted, it is used as a m a n u a l disc o n n ect.
.E
N o n-adjustable thermal and magnetic trip
elem ents a re factory c a l i brated a n d sealed.
The tripping element i s counterba l a nced to
reduce possi b i lity of acc identa I tripping u n der
shock. All parts a re given a c o rrosion­
resistant treatment i n c o m p l i a nce with
M I L- E-91 7 .
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P l u g- i n l i n e c o n nections s i m p l ify panel board
mounting. A c l a m p type term i n a l o n the l i n e
end of the breaker provides plug- i n c o n n ec­
tion to bus stabs in panel boa rd m o u nting
bloc ks . F o r front connection, there is a p res­
s u re type te r m i n a l o n the load end of the
breaker.
National
Stock No.
5925-00-204-7494
5925-00-204-7488
5925-00-549-5366
5925-0 1 -01 7-301 1
5925-00-549-5359
5925-00-549-5360
5925-01 - 1 7 5-8204
5925-01 -261 -5625
5925-00-549-5365
5930-00-548-7068
Special ALB-1 an d NLB- 1 Breakers
S i m i l a r to a bove exc e pt to have a 1 A-1 B a u xi l i a ry switch rated 5 a m p resistive, 250 volts
Ac o r 30 volts De max. ( N ot s u b m itted for Navy a p p rova l . and does not use brea ke r m o u nt­
i ng bases. ) O rder by desc ription.
lP
ALB-1 Navy circuit
Style
Number
-454i5567G01
454D507G02
454D507G03
454D507G04
454D507G05
454D507G06
454D507G07
454D507G08
454D507G09
454D507G1 0
an
ALB-1
ALB-1
ALB- 1
ALB-1
ALB-1
ALB-1
ALB- 1
ALB-1
ALB-1
N LB-1 CD
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
April 1 99 1
Supersedes Tec h n ic a l D a t a 29-220,
pages 5-6, dated May 1 980
M a i led to : E, C/29-200A
Top view of typical ALB-1 panelboard mount­
ing base. (Style 4540509G04)
National
Stock No.
5925-01 -005-4983
Style
Number
454D509G01
454D509G02
454D509G03
454D509G04
5925-00-660-3562
454D509G05
5925-00-201 -7 1 75
454D509G06
5925-00-544-5980
5925-00-20 1 -7 1 76
454D509G08
.
.......... .
.... .. ....
.
.
Net Wt.
in Lbs.
'!.
'!.
'/,
'h
2/
3
'h
In dividual Reproduction s: When req u i red, reproductions of m a ster d rawings, outl i n e draw­
i n gs and certific ation sheets can be ordered as f o l l ows:
Item
1
2
3
4
[)_escription
Full size photolithic tracing of master drawing on vellum
Outline and drilling plan on vellum
Certification data on vellum
Reproductions of items 1, 2 or 3
Drawin gs Available : Master drawing
900J396; breaker outl i n e 3 1 4C 2 1 8; m o u nting
bases 455D791 a n d 369D592.
Techn ical Man u al: N avships No. 362-2228.
This booklet per M I L- M- 1 5071. When re­
q u i red, o rder BVR-TM-378.
Han d le Y okes: Provide i nter l ocking of two or th ree one-pol e brea kers for s i m u ltaneous oper­
ation. I n di v i d u a l pole tripping is o bta i n e d without n o r m a l trip i n dicating (center) position.
Poles
2
3
CD
@
Style N-- umber
207B508H01
207B508H02
-- ------
Tr1pp1ng element omitted for manual disconnect. Letter
"N" hot stamped in white on handle.
In De or single phase panel applications, basic patter� IS
one molded base accommodating four single-pole break­
ers. (See pages 7 and
8.)
@
National Stock No.
5925-00-202-0938
5925-00-296-8926
In 3-phase application where bas1c pattern is three
molded bases, one 454D509G04 and two 454D509G05 are
required, each base accommodating two breakers per cir­
@
cuit {See page 7.)
For 3-phase application where basic pattern is one
molded base accommodating up to six breakers or two
breakers per circuit (See pages
8 and 9.)
.c
om
Technical Data
29-220
Page 6
Outline Dimensions ALB-1 Breaker and M o u nting Bases
Br eaker Outline
ua
ls
Single Base, Fr ont P anel Suppor ted
(454D509G0 1 )
)0 Tr 1 pped
?
32 1�f-�
32 32 322
2.
16
_J
___!:_
16
22
rl@ ii
Mounting
slot
Ampere Rot1ng
�
�
_1______1,
2-J-
Standar d Br eaker
l
ca
.190-32 Top I 2 holes)
16
12_1 ----<;�l
5
I 41r 32 ___, z '-I
l____t_ -=-�
•
.
Steel plate
.
--
5
54 thiCk
--:!'
-
-�
'tof
1 _.j
Mount1ng
plate
Mounting of Fr ont P anel Suppor ted Bases (Side View)
2-.190-32 X 3
Breaker escutcheon and mountmg s crews
Base
mounting screws
7
�32 32
lec
Crit1col dimens1ons of
stab and mount1ng clip
3
/
�
/
with
tri
1515
3 f1 32
!1-:'_ttf $14 ffi�
JT 'r-�tf tf��.:'"
2 Screws, steel, .190-32 X 3 furnished
lockwoshers for secunng to panel front cover
zl
Special Br eaker with Auxiliar y Switch
Single Base Surface Mou nted (4540 509G02)
-��3264�
tM
Ampere rot1ng
I
I
ar
l_
Two Br eaker Base, Fr ont P a nel
Suppor ted (454D509G03)
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I�
8
an
�a-
3 P ole Handle Yoke (207B508H02)
�-�u:J-- --o =t_J]
15
.195 �--��- 2 32-
.23 4
�
n
2 P ole Handle Yoke (207B508H0 1 )
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Mounting of Surface Mounted Base (Side View)
Westinghouse E l ectric Corporation
Distribution and Control Busi ness U n it
E l ectrical Compone nts Division
Pitts b u rgh, Pennsylv a n i a , U . S.A. 1 5220
Apr il 1 991
.c
om
Tech n ic a l Data
Westinghouse Electric Corporation
Distribution a n d Control Busi ness U n it
Electric a l Components Division
Pittsburg h , Pennsylv a n i a , U . S . A. 1 5220
April 1 99 1
Supersedes Technic a l D a t a 29-220,
pages 7-8, dated October 1 978
M a i led to: E, C/29-200A
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
ABL-1 Breaker Mounting Bases, Continued
Bus Bar Drilling for De and 1 Phase Panels
(Y. x 1 Copper Bus not Supplied)
(2 Separate Bases shown. Basic Pattern i s
1 Molded Base Acc om modatin g 4 Single Pole Breakers)
Busbor C
an
Stab Bose
Page 7
Types A LB - 1 , N L B - 1 , 1 25 Volts Ac and De,
5 0 Amperes Maximum, 5000 Amperes I . C.
Application in De and 1 Phase Panels
Busbor A
B usoor A
ar
tM
BusborC
29-220
Front Vrew
Phase Panel Application
lP
3
For Two Breakers per load Circuit
(Basic Pattern of Three Separate Moulded
Bases can be R epeated for Longer Panel Boards)
Bu s bar A
ca
Bus barB and stab base
Bus Bar Drilling for
3
Phase Panels
For Two Breakers per Load Circuit
(Y.
x
1 Copper Bus not Supplied)
4540509G05
7
ib
Front View
±�1
t
tri
Stab base
mtg screws
/
.190 · 32 Topped
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.E
lec
Stab
bose
mtg
Outline Dimensions for Mounting Bases
454D50 9 G 04 or 454D509 G 05
,�H01ameter 2 counter bores �dee�
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13
�--�t
1�2 • �j-- - --64 D1ameter
�4-�-------------�, _cZ�h�o�el �s-----�
16..3
.
iL------6*
7
-�--=il-
Front Vrew
holes
Technical Data
.c
om
29-220
Page 8
Dimensions, Continued ALB-1 Breaker and Mounting Bases
Application in De and 1 Phase Panels
(2 Separate Ba ses shown. Basic Pattern is
1 Molded Base Accommodating 4 Single Pole B reakers)
(�
x
1 Copper B u s not S u pplied)
35
BusbarC "-
�
Bus bar A....._
�
ua
ls
"
�
Bus bar A
Bus Bar Drilling for De and 1 Phase Panels
4540509G08
64
II
316
_
/
4540509G08
Stab base
and mounting
2 �
2
an
.190-32
L
Tapped holes
tM
4540509G08
3
Phase Panel Application
For Two Breakers per load Circuit
( B asic Pattern of Three Separate Molded
Bases can be Repeated for longer P a nel B oards)
�
ar
Bus bar B and Stab base 4540
509G05
B usbar �/
1 32
�� ____<1..--
Phase Panels
L
ca
1 32
3
For Two Breakers per Load Circuit
(� x 1 Copper Bus not S u pplied)
�
"454D509G05
tri
�
-- 454 D509G05
c
i:n
�
.E
lec
�
Stab base an d
lP
Busbar C
Stab base and
mounting screw �/ �
Bus Bar Drilling for
hick steel
6 T
.190-32Thd.
Side View
Outline Dimensions for Mounting Bases (Side View)
454D509G05or 454D509G08
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p�
' ,_
v
�- - -'
1
Outline Dimensions for Mounting Bases
454D509G05 or 454D509G08
R Dia. 2 holes
April 1 991
.c
om
8
Tech nical Data
Westingh ouse Electric Corporation
Distribution a n d Control B u s i n ess Unit
Electrica l Components Division
Pittsburgh, Pen nsylva n i a , U . S .A . 1 5220
A LB - 1 , N L B - 1 , 1 25 Volts Ac, De;
50 A mperes Maximum, 5000 Amperes I . C.
Apri l 1 99 1
S u persedes Tech n i c a l D a t a 29-220,
pages 9- 1 0, dated October 1 978
M ai l ed to: E, C/29-200A
Page 9
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Types
29-220
ALB-1 Breaker Mounting Bases
B u s Bar D r i l l i n g fo r 3 P h ase P a nel A p p l icatio n
(For One or Three Breakers per Load Circuit)
For One or Three Breakers per Load Circuit
(Y. x 1 Copper Bus not Supplied)
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3 P hase P a nel Applicatio n
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Stab base
and mtg.
scews
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454D509G06
O u t l i n e D i mensio ns fo r Mo u nting Base
454D509G06
2�
32
�
31
tl
64
7
3, oiameter 2holes
v:
""
3
-- a
tri
r
6�
� Dia meter 2 counter bores/
� deep
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--r.
3
8
I
2
I
4
Front P a nel Cutout
1� Diam eter megg er
holes if required
.E
O ut l i n e o f Base ( S i d e View)
454D509G04, 454D509G05,
454D509G06, 454D509G08
Fro n t Vi ew
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Han dle p ivot
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-+---3i6
For 1 three pole circuit
For 1 Single pol e c ircuit
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Technical Data
29-220
Page 1 0
Time� Current Curve
2
I
40
20
f---1Characteristic Time Current Curve
f---1Instantaneous Tripping Occurs 320
Amperes or 20 T 1mes Element Rating
f---1Whichever is Less ..... More Than
050 Sec 800 Amperes Less Than .200Seconds
\
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2
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0
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0
in
0
0
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u
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;E
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;=
......
f\.
Minimum/
/
......
'
2
""'
2
I
4
Times Rated Current
5
6 7 8 9 10
20
C h a ract er i st i c Tempe rat u r e ­
R at i ng C u rv e
110
105
95
90
85
75
70
/
100
./
90
/
eo
v
10
v
v
/
/
/
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Load
Type ALB-1
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10 0
v
50
Ambient Temperature, °C
so
40
30
20
10
90 100
200
300
500
l/ Connection
a
�
Line
1
Dr
w Out
Stationary
�/ C onn e c t1o n
Load
Type NLB-1
o
.E
Go
70
tri
II5
30
"""'
Line
120
J
....
Wiring D i ag ra m
125
80
""'
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Maximum
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Characteristic
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MI L-C-1 7588
This specification i ncludes the A L B - 1 type
circuit breaker. It req u i res that this breaker
carry 1 1 5% of c u rrent ratings for more than
one hour and that the pri mary elements i n i ­
tiate tripping at 1 38% rated c u rrent with i n
o n e h o u r a n d a t 200% i n 1 0 t o 1 00 seconds.
A tripping c haracteristic of the primary
element is based on the cu rrent flowing
through all poles in series and in a n ambient
of 50"C. The minimum i nstantaneous trip
setting shall be 320 amperes or 2 0 times the
element rati ng, whichever i s less, and tri p
at not less than .050 second. At 800 a m ­
peres t h e breaker must trip a t .200 second
or less.
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C h a ract erist i c C u rves A L B - 1 Breaker
Cha ract er i st ic T i m e - C u r re nt C u rve
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West i n g h ouse E l ectric Corporation
Distribution a n d Control B u si n ess U n it
E l ectrical Com ponents Division
Pittsburgh, Penn sy lvania, U . S .A. 1 5220
April 1 991
West ingh ouse Elect ric Corporat ion
Distribution a n d Control Busi ness U n i t
E l ectric a l Components Division
Pittsbu rg h , Pen nsylva n i a , U. S .A. 1 5220
29-220
Page 1 1
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
AOB-A50, N OB-A50, 500 V Ac, 250 V De
50 Amperes M a x i m u m , 5000 Am peres Ac,
2500 Am peres De \ . C.
.c
om
April 1 99 1
N e w I nformation
M a i led to: E, C/29-200A
Tec h n ic a l Data
AOB-A50 and NQB-A50 Breakers
an
Specificat ion: MI L-C- 17361
1 0-50 Amperes, 60 and 400 Cyc l e
500 Volts Ac and 250 Volts De
3 Pole
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I nt errupt ing Rat ing
5000 Amperes Ac and 2500 Am peres De
Non-I nterc h a ngeable trip u n it
Class H i -S h oc k M I L-S-90 1 , 50° C a m bient
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The N O B -A50 b r e a k e r i s a n o n- a u t o m a t ic
design of the AOB-A50. S i nce the tripping e l e­
ments a re o m itted, it is used as a m a n u a l dis­
c o n n ect. T h e N O B -A50 h a s a m a x i m u m
conti nuous c u rrent rating of 50 a m peres.
ar
The AOB-A50 is a factory c a l i brated non­
adjusta ble thermal m a g n etic c i rcuit breaker.
The c i rcuit breaker i s assembled as a th ree
pole device with c i rc u it protecting trip ele­
ments i n the two outside pol es. The unit c a n
b e i n sta l l ed i n 2 p o l e a p p l ications b y con­
necting the 2 w i re c i rcuit to the outside pro­
tected poles.
List P rice See Price List 29-020
T rip Un it
Rating
St y le
Number
National Stock
Number
60 Cycle
AQB-A50
AQB-A50
AQB-A50
AQB-A50
AQB-A50
AQB-A50
AGB-A50
AQB-A50
10
15
20
25
30
35
40
50
1244C52G01
1244C52G02
1244C52G03
1244C52G04
1244C52G05
1244C52G06
1244C52G07
1244C52G08
5925-00-783-6399
5925-00-797-9692
5925-00-799-5669
5925-00-797-9693
5925-00-391-0914
5925-00-797-9695
5925-00-783-6635
5925-00-797-9696
400 Cycles
AQB-A50
AQB-A50
AQB-A50
AQB-A50
AQB-A50
AQB-A50
AGB-A50
AGB-A50
10H
15H
20H
25H
30H
35H
40H
50H
1244C52G09
1244C52G10
1244C52G 1 1
1244C52G 12
1244C52G13
1244C52G14
1244C52G15
1244C52G16
5925-00-783-6398
5925-00-799-8871
5925-01-025-7001
5925-00-797-9701
5925-00-199-9518
5925-00-817-6294
5925-00-817-7860
5925-00-817-7861
NGB-A50
Non-Automatic
1244C52G25
5925-00-948-3296
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Type Gl ®
Refer to Westinghouse for De Part Numbers and Information.
Q) Complete breaker does not include mounting bases. Type requi red must be ordered separately. Mounting bases
include cable lugs.
0 Only
pole breakers furnished; for 2 pole application make connections to outside poles.
3
Tech nical Data
.c
om
29-220
Page 1 2
Style
Number
National Stock
Number
Single Base- Line and Load Stabs, Front Connected
Single Base- Line and Load Stabs, Rear Connected
Single Base- Line Rear, Load Front Connected
Double Base Assembly- Line, Bus Connected; Load, Front Connected
Handle Lock
Handle Boot
Technical Manual
1244C44G01
1244C44G02
1244C44G03
1244C45G0 1
5080A95H0 1
752B729H01
1244C59H01
5925-00-270-4004
5925-00-270-4005
5925-00-270-4006
5925-01-246-0569
5925-01-09 1 -9432
Net Weigh t - Lbs.
AOB-A50- 2.2
N OB-A50- 1 . 9
an
S i n g l e Mounting Base- 0.7
Double M o u nting Base- 1 . 5
Handle Lock- .03
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Panelboard Mounting and Accessories
Type
AQB-A50
Single Mounting
Base- Rear Connected
Single Base
Line Stabs
Rear Connected;
Load Stabs Front
Connected
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AQB-A50
Single Mounting
Base - Front Connected
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Ordering Information : See Page 4
Handle
Lock
Double Mounting
Base- Front Connected
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Westi nghouse E l ectric Corporation
Distribution a n d Control Busi ness U nit
E l ectrical Components Division
Pittsburgh, Pennsylva n i a , U . S .A . 1 5220
April 1 991
Apr i l 1 99 1
N e w Information
Mai led to : E , C/29-200A
Outline Dimensions AOB- A50 a n d NOB-A50 Breakers (Dimensions in I nches)
INSERTS IN COVER (21
•12-24 THDS
3
3
8
8
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OF CLIP
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2 2
j
rr=
r;=:=J !i
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2 85
OFCLIP
LOAD END
I
LINE
LINE
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2.6
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;1
Side View
1;
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55
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
11 1 111 1 1 1
-
OFF
Front View
Page 1 3
;
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29-220
an
BREAKER MOUNTING HOLES
TWO #12-24 MOUNTiNG SCREWS
4 1/8 LONG SUPPLIED WITH BREAKER
Technical Data
ua
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AQB-A50, N QB-A50, 500 V Ac, 250 V De
50 Am peres M a x i m u m , 5000 Am peres Ac,
2500 Am peres De I . C .
.c
om
Westingh ouse Electric Corporation
Distribution and Control Busi ness Unit
E l ectrical Compon ents Division
Pittsbu rgh, Pennsylva nia, U .S .A. 1 5220
LOAD
LOAD
TYPE AQB-A50
TYPE NQB-A50
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Wiring Diagram
5
,,
DIA FOR INSULATION TEST
Front Panel Cutout
.c
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Technical Data
29-220
Page 1 4
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Single Base Un its (Dimensions i n I nches)
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29
64
line and Load Stabs Back Connected
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line and Load Stabs Front Connected
WIRE CONNECTION
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WIRE CONNECTION
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10-32
THDS.
WIRE CONNECTION
line Stabs Back Connected, Load Stabs Front Connected
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Westing house E l ectric Corporation
Distribution a n d Contro l Busi ness U n it
E l ectrical Components Division
Pittsburgh, Pennsylva nia, U . S.A. 1 5220
April 1 99 1
.c
om
Westingh ouse Electric Corporation
Distribution a n d Control B u s i n ess Unit
E l ectrical Compon ents Division
Pittsburgh, Pennsylva n i a , U . S.A. 1 5220
29-220
Page 1 5
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
AQB-A50, N QB-A50, 500 V Ac, 250 V De
50 Amperes Maxim u m , 5000 Am peres Ac,
2500 Am peres De I .C.
April 1 99 1
N e w Information
Mai led to : E, C/29-200A
Technical Data
't
OF CIRCUIT
BREAKERS
LOAD
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LINE
an
Double Base Assembly (Panelboard) (Dimensions in I nch es)
1 2
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2,;;
16
LINE
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r----- 1""
L_____j_
__
Line Bus Connected, Load Front Connected
#10-32
THREAD
Technical Data
.c
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29-220
Page 1 6
Navy Type AQB-A50
Circuit Breaker
0
0
N
;:
\
1000
500
300
200
r.n
0
z
0
u
w
r.n
�
w
:;
50
30
20
N
g
'"
oo
oo
oo
""
"'
0
0
0
2
g
0
N
0 oo
0 oo
0 oo
0 oo
"" "'
'"
0
0
0
0
0
10000
5000 �
-0
3000 �
2000
:I
g
�
(/)
500
300
200
\
1\
\
\
'
10
0
g
1000
I
100
g
0
0
0
an
5000
3000
2000
o-
0 00
00
_, "'
1\
)..---
\
i=
100
tM
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0
0
50
30
20
Maximum Trip Time
10
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10000
0
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PERCENT RATED CURRENT
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' Minimum Trip Time
tri
0 05
003
0.02
01
.3
1\
1\
0 05
0 03
0.02
I\
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0
"'
0
2
0
0
N
0 00
00
""
g
"'
0
0
0
:;·
'"
c.
:;·
c
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01
)>
005
003
002
005
003
002
001
4'
0
0
0
N
0 00
0
0
'" .q- 1..1)
gg
0
0
0
2
PERCENT RATED CURRENT
0
0
0
0
N
0 oo
0 oo
0 oo
0
C)
ciO
"" "'
0
0
0
001
0
0
Time-Current Curves for AOB-A50 Circuit Breaker (60Hz, 400Hz and dc-10, 1 5, 20, 25, 30, 35, 40 and 50
Ampere Ratings)
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Westing house E l ectric Corpo ration
Distribution and Control Bu siness U n i t
E l ectrical Compon ents Division
Pittsburgh, Pennsylva nia, U . S .A. 1 5220
April 1 991
I nterr u pti n g R at i n g
1 5,000 Amps A c a n d 1 0,000 Amps De
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ls
Those breakers (and i nterrupte rs) desi g n ed
for De motor ci rcuits a n d fo r Ac feeder c i r­
cuits (designated with a "BF" in a m p rat i n g
co l u m n of price table) h a v e fixed i n stanta­
neous settings of 600%-700% cont i n u o u s
cu rrent ratings. Those h a v i n g a mag netic
e l em e nt set to trip at 1 200%-1 400% a re
applied on Ac moto r ci rcuits (designated
with a "B"). Breakers desi g n ated with "BE"
are calib rated for De appl icati o n .
List P rices See Price List 29-020
'
1 764
1764
1764
1 764
1 764
1 764
1 764
1 764
681
682
683
684
685
686
687
688
1 05
175
350
525
700
1 764
1 764
1764
1764
1 764
90
1 05
1 80
210
1 50
175
300
350
300
350
600
700
450
525
900
1 050
600
700
1 200
1 400
Non-Auto matic
1 764
1 764
1 764
1 764
1764
1 764
1 764
1 764
1 764
1 764
1 764
1 05
175
350
525
700
Two-Pole, 500 Volts Ac
Three-Pole, 250 Volts
90
1 50
300
450
600
De
.E
1 5-BE
25-BE
50-BE
75-BE
1 00-BE
Three-Pole, 500 Volts Ac
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1 5-BF
1 5-B
25-BF
25-B
50-BF
50-B
75-BF
75-B
1 00-BF
1 00-B
1 00®
.
.
.
.
.
.
.
638
638
638
638
638
.
.
.
.
.
......... ...
5925-00-396-2283
. ...... . .. .. . .
.. ......... .
..... .... ....
. .. . .. . . ....
.. . ... .. . .. .. .
.. . . .. . . .. .. .
1764
1764
1 764
1 764
1 764
1 764
1 764
1 764
638
638
638
638
638
638
638
638
.
.. ..
.. ..
....
.....
. .. .. .
.. . .
. ....
689
690
691
692
693
..............
5925-00-399-81 20
....... .......
..... .........
5925-00-399-81 27
1764
1 764
1 764
1 764
1 764
694
695
696
697
698
699
700
701
702
703
704
5925-00-1 1 3-5066
. .. .. . .. ... ...
5925-00-658-9609
5925-00-265-9474
5925-00-988-5474
5925-00-396-2339
.. . . . .. . .. .. .
5925-00-396-2345
. . .. . ..... .. .
5925-00-450-6275
5930-00-259-9440
1 764
1764
1764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1764
. .. .. . ... . . .
5925-0 1 -221-1 765
... ...........
. . .. ........
........... . ..
.
.
.
.
.
.
. .
.
.
.
'
.
.
.
.
'
'
.
.
.
.
.
.
.
.
.
.
Trip Unit Only
Style
National
Number
Stock No.
.
. .. . .. . ....
.......... ..
.......... ..
.... .......
1 764
1 764
1 764
1 764
1 764
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90
1 05
1 80
210
1 50
175
300
350
600
700
900
1 050
1 200
1 400
Non-Automatic
1 764
1 764
1 764
1 764
1 764
Breaker Frame OnlyCD
National
Style
Number
Stock No.
ca
De
676
677
678
679
680
90
1 50
300
450
600
1 5-BF
1 5-B
25-BF
25-B
50-B
75-B
1 00-B
1 00®
Co m plete Breaker(])
National
Style
Stock No.
Number
tri
1 5-BE
25-BE
50-BE
75-BE
1 00-BE
AOB-A100
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AQB -A 1 00 circuit breakers are designed for
use in lighting and distribution panel boards
and switchboards for the protection of feed­
er and motor branch circuits.
Trip u n its with cu rrent rati ngs of 1 5, 25, 50,
75 and 1 00 can be q u i ckly i nterc hanged
and a conversion kit is available to change
a 3 - pole, 500 volt AQB-A 1 00 to a non­
automatic N Q B - A1 00 circuit i nterrupter.
N Q B - A 1 00 breakers have a maximum con­
tinuous current rati n g of 1 00 amperes, but
they are used only as disconnects si nce
there is no a u tomatic opening device.
an
Specificat i o n : MI L-C-17361
1 5-1 00 Amperes
500 Volts Ac and 250 Volts De
Two or Three- Pole
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
tM
Note: AQB-A100 and NQB-100 breakers are
sold for replacement only . Th ey are no
longer on Navy Qualified P roduct List.
Two-Pole, 250 Volts
Page 17
ar
A Q B - A1 00 and
N Q B - A 1 00 B reakers
I nsta nta neo us
Trip Setting
in Amperes
Low
High
29-220
Types AQB-A1 00, N Q B -A1 00, 250 Volts De,
500 Volts Ac, 1 00 Am peres Maximum,
1 5,000 Amperes I . C .
April 1 99 1
S u persedes Technical Data 29-220,
pages 1 1 -1 2, dated Octo ber 1 978
Mai led to: E , C/29-200A
Cont.
Ampere
Rating
.c
om
8
Technical Data
Westingh ouse Electric Corporation
Distribution a n d Control B u s i n ess U n it
E l ectrical Com ponents Division
Pittsburgh, Pennsylv a n i a , U . S.A. 1 5220
1764
1764
1 764
1 764
1 764
640
641
642
643
644
. . ... .. ... .... .
5925-00-248-1 1 04
......... .....
5925-00-248-1 1 08
.. . . ....... . ..
645
646
647
648
649
650
651
652
. . ..
....
.
. ..
. ..
.. . .
1 764
1 764
1764
1764
1764
1 764
1 764
1 764
..... .....
5925-00-629-0975
...............
5925-00-628-0695
5925-00-248-1 078
5925-00-248-1 082
..............
5925-00-772-0646
639
639
639
639
639
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
1 764
1 764
1 764
1 764
1 764
653
654
655
656
657
5925-00-608-0972
5925-00-553-9745
5925-00-383-381 4
5925-00-248- 1 371
5925-00-608-0973
639
639
639
639
639
639
639
639
639
639
639
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
5925-00-258-2945
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
658
659
660
661
662
663
664
665
666
667
668
5925-00-502-671 9
5925-00-248-1 453
5925-00-21 5-3758
5925-00-248-1 449
5925-00-248-1 442
5925-00-248-1 443
5925-00-248-1 436
5925-00-248-1437
5925-00-248-1 429
5925-00-588-2453
5925-00-699-1 1 1 1
.
.
.
.
.
.
.
'
.
.
........ .. .
. .
.
.
'
.
.
.
'
.
.
.
.
.. ..
.. ..
.....
....
... .
. . .
. ...
. .. ..
.
.
.
.
.
.
...
...
'
. .
.
.
'
.. .
.
.
.
.
.
.
N ote: Breakers with ratings other than those given on this page are considered special and ful l description data must be provided.
Styles listed include slip-type connectors for rear connections. Order front terminal connectors separately
if required. No additional charges for front connectors ordered with breakers or frames.
®Type NQB-A100 non-automatic. To convert 3-pole AQB breaker to NQB breaker, order style 1764 668 only.
CD
.c
om
Cl
Technical Data
29-220
Page 1 8
A Q B - A 1 00 a n d N Q B - A 1 00 B reakers, Continued
Prices given below apply only when connectors are ordered separately. When breakers and
the req u i red lugs are ordered simu ltaneously, these l u g s will be supplied without charge.
N3-N14
N23-N40
N50-N75
I
1
Navy
Cable Size,
Max.CD
1 4,340
38,91 0
75,780
CD Circular mils area.
I
I
Description
One Pressure Connector
One Pressure Connector
One Pressure Connector
I
1
National
Stock No.
Style
N umber
Tech n i c a l M a n u a l N avships 362-081 9per MI L- M - 1 5071 : When required, specify
I B - 2 9 -0 6 2 - C I A .
1 763 660
1 763 661
1 763 662
tM
Switchbo a rd Mo u nt i n g
Com plete breakers and frames include mounting hardware. Female slip connectors are
mounted in the breaker base for plugging onto stud projecti ons of terminal mounting
block assemblies. Order one mounting block assembly for each end of the breaker.
Number
Poles
Description
Style
N u m ber
National
Stock No.
2
3
2 or 3
Mounting
Mounting
Mounting
One Stud
1 764
1 764
1 764
1 631
5940-00-643-7 194
5940-00-501-9 120
Complete Breaker
2.75
3.25
1 0.00
8.75
1 0.75
9.50
Trip Unit
Item
Descr i ption
2
3
4
Full size p h otolithic traci ng of m a ster d rawi ng on ve l l u m
Outl i n e a n d d ri l ling p l a n on v e l l u m
Certification data on vellum
Reprod u ctions of Items 1 , 2, or 3
D rawings Ava i l a b l e : M aster drawing
1 - J F-630; rear connected breaker outline,
drilling and wiring diagra m 20- B - 2881 ;
front connected breaker outli ne, drilling and
wiring diagram 3 0 - B - 3837.
400 Cycle B reakers : Refer to Westing­
house.
2-Pole AOB- 2.625
2-Pole NOB- 1 .375
3-Pole AOB- 2.875
3-Pole NOB- 1 .625
tri
2-Pole AOB
2-Pole NOB
3-Pole AOB
3-Pole NOB
Frame
2-Pole AOB- 7.375
2-Pole NOB- 7.375
3-Pole AOB- 7.875
3-Pole NOB- 7.875
I n divi d u a l Repro d uctio ns : W h e n re­
quired, reprod uctions of master drawings,
outl ine drawings and certification sheets
can be ordered as fol l ows:
ca
2-Pole Mounting
Block Assembly
3-Pole Mounting
Block Assembly
ar
Net Weight, Lbs.
Terminal Mo unting Suppo rts (Set of Two )
675
674
240
442
lP
Block Assembly
Block Assembly
Block Only
Assembly- Complete with 4 Nuts
F u n g u s - Mo i s t u r e R e s i s t a n t T r e a t­
ments: (Jan- T- 1 52, J a n - C - 1 7 3 or M I L-V1 73 ) if specified, contact Westing house.
External parts are coated; trip u n its are not
treated.
an
Cable
Range
Additions
H a n d l e Lo ck : When specified, order style
1 6 1 4 485. One furnis hed without charge
per every 1 0 breakers, when requested.
ua
ls
F ro nt Co n nected B reakers
For the load ends of panel board breakers and for other front terminal applications, pressure
conn ectors should be ordered.
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.E
lec
s
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West i n g ho u se E l ectric Corpo ration
Distribution and Control B u s i n ess Unit
Electrical Com ponents Division
Pitts burgh, Pennsylvania, U . S . A. 1 5220
April 1 991
April 1 99 1
S u persedes Technica l D a t a 29-220,
pages 1 3- 1 4, dated October 1 978
M a i led to: E, C/29-200A
Types AQB -A1 00, N Q B -A1 00, 250 Volts De,
500 Volts Ac, 1 00 Am peres Maximum
1 5,000 Amperes I . C .
! Term1nal mtg block
1_
.
Lme End
ar
lP
Visable amp rat1ng
inlerchangeable
tri p unit
Drilling Plan
Front Cover Cutout
ca
For Mounting Pa nel (Front View)
� D10. megger
8
tri
_
16 1 _!_ Min. -;l 0t
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Load End
IS
fest holes """',
om1t m1ddle
hole for 2
pole
29-220
Page 1 9
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
I
tM
Thd·
Tech nical Data
ua
ls
O u t l i n e D i mensions AQB -A1 00 and N Q B -A1 00 Breakers
_18
5
8
.c
om
8
Westinghouse Electric Corporation
Distribution a n d Contro l B u siness Unit
E l ectrica l Compo nents Division
Pittsburgh, Pennsylva n i a , U . S.A. 1 5220
098 Dia. hole for
handle lock
and
Mounl1ng bolls
and wa s hers
�±��"""===-' (furnished
lermmal
(4)
wilh
blocks)
�-20xl� LG
hex hd s bolls
Slolled
pole current corrymg
ports are omilled
.c
om
Tec h n ical Data
29-220
Page 20
C h a racteristic C u rve
A Q B - A1 00 B reakers
<1)
"'
::;;:
E
f=
\
10
5
3
2
c
0
u
Q)
(f)
--
\
\
f\
4
i:
Instantaneous
0
c
Trip at 600% to
700% Rat1ng
I
\
ii
I I I
I I
�
'
\
·,
'
5
4
3
2
0
0
0
0
N
00
00
r<> "
Percent Rated Current
\ \
�
10
5
3
2
l\f\
40
30
20
15
10
,\
I
50
40
30
20
I
40
30
20
15
10
Maximum
M1n1mum
1
V>
"
1400% Rating
"" :-....
I'�
I I
5
3
2
I
0
'
!!
II
II
0 00 0 0 0
0 00 00 0
w ro o
<D O 0
- N
r<>
O perat i ng Cha racteristics
Trip U nit Rating 1 5-1 00 Amperes
50'C Ambient - Cold Start. 60
Ac or D e
ua
ls
:;
\
Trip at 1200% to
o
o
0
o
0
o
o
Per Cent Rated �rre;;
o
o
<t
o
o
o o
o o
o..o ro 0
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I
j
o
o
o
o
� 2
o
o
�
tM
40
30
20
V>
<1)
\
1
an
---Instantaneous
3
2
4
3
2
Operating Cha racteristics
Trip U n it Rating 1 5- 1 00 Am peres
50'C Ambient - Cold Start
400 Cycle Ac
ar
:;
S pecificatio n MI L-C-1 7361
This specification covers all therma l - ma g ­
netic AQB breakers. It requi res t h a t they
carry 1 50% of current rati n gs for at l east
one hour and that thermal elem ents initiate
tripping at 225% rated current within one
hour and at 600% i n 25 seconds p l u s or
m i n us 2 5%. The instantaneous magnetic
setti ngs for each conti n u ous ratings a re
based on intended appl ications. (Thermal
tri pping tests are cond ucted with a l l poles in
series in 50'C a mbient; each pole is tested
individ ually to check magnetic setti ngs.)
400 Cycle B reakers
�T
0
0
I
Tri p U n i t R a t i n g
90
Cycle,
80
lP
V>
0
I
5
4
I
l
70
�
60
ca
50
40
30
J
tri
20
.E
lec
10
0
0
0.5
Factor
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
To determine the tri p unit rating to be used,
when the load c u rrent and a m bient are
known, m u ltiply the load current by the
factor obtained from this curve for the
known a m bient. The result will be the ideal
trip u n it rating. However, since tri p u n its are
furnished only with standard ratings as per
N avy spec., select the sta nd a rd trip u n it
whose rati ng is equal to or one rating hig her
than the ideal rating.
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Westi n g house E l ectric Corpo ration
Distribution a n d Control Busines s U n it
Electrical Compo nents Division
Pittsburgh, Pennsylva n i a , U . S.A. 1 5220
April 1 99 1
Types AOB-A1 0 1 , N QB - A1 0 1 ,
250 Volts De, 500 Volts Ac
1 00 Am peres M ax i m u m, 1 5,000 Am peres I . C .
N O B - A1 0 1 circ u it breakers have a maxi ­
m u m conti n u ous current rating of 1 00 a m ­
peres. They a r e used o n l y as discon nects,
since they do not i nc l ude an automatic
open ing device.
�
These breakers have adjustable i nstanta n ­
eous trip settings o f "lo", "i ntermediate",
List P rices See Price List 29-020
15 Amp
25 Amp
50 Amp
75 Amp
1 00 Amp
1 00G Amp
1 00 Amp
400 Cycle
AQB-A101
AQB-A101
AQB-A101
AOB-A 1 0 1
AQB-A101
AQB-A101
1 5 H Amp
25H Amp
50H Amp
75H A m p
1 00H Amp
1 00GH Amp
Magnetic
Only
Style
458D509G 1 1
458D509G 1 2
458D509 G 1 3
458D509G 1 4
458D509G 1 5
458D509G 1 6
458D509G20
5925-00-876-9 2 1 6
5925-00-876-9217
5925-00-876-92 1 8
5925-00-876-9 2 1 9
5925-00-876-9220
5925-00-61 9-0412
5930-00-969-2477
458D51 1 G 1 1
458D5 1 1 G 1 2
458D5 1 1 G 1 3
458D5 1 1 G 1 4
458D51 1 G 1 5
458D 5 1 0G 1 1
458D 5 1 0G 1 2
458D5 1 0G 1 3
458D5 1 0 G 1 4
458D5 1 0G 1 5
458D5 1 0G 1 6
5925-00-867-7328
5925-00-867.7329
5925-00-986-73 1 3
5925-00-986-73 1 4
5925-00-972-3000
458D5 1 2G 1 1
458D5 1 2 G 1 2
458D5 1 2 G 1 3
458D5 1 2 G 1 4
458D5 1 2G 1 5
Thermal
Mag netic
Style
1 80- 2 1 0
300- 350
600- 700
900-1050
1 200-1 400
1 200-1400
Non-Automatic
,
75-105
1 25-175
250-350
375-525
500-700
500-700
tri
ca
.
f
A O B -A1 01
National
Stock
N u m ber
nstantaneous Trip Setting @
A c 6 0 Cycle
.
Hi
Lo
lP
AQB-A101
AOB-A101
AQB-A 1 0 1
AOB-A 101
AOB-A101
AQB-A1 0 1 ®
NQB-A101
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
AOB-A1 0 1 circuit breakers are designed for
use i n l ig hting and distribution panelboards
and for switchboards i n the protection of
feeder and motor branch circuits.
Trip
Unit
Rating
Page 2 1
tM
I nterrupt i n g R at i n g
1 5,000 Amps A c a n d 1 0,000 Amps De
No n - I ntercha ngeable Trip Unit
Class: Hi S hock M I L- S - 90 1 : 50'C Ambient
I
29-220
and "hi". The "lo" setting is 500%-700% of
conti nuous current rating. It is designed for
De motor circu its and Ac feeder circuits. The
"hi" setting is 1 200% - 1 400% of conti n uous
current rating and is designed for appl ic a ­
t i o n on A c motor circuits. T h e i ntermedi ate
setting may be used to i ncrease lo setting
tri p a mperes or decrease h i setting tri p a m ­
peres a s may be required.
ar
A Q B -A1 01 a n d N Q B -A 1 01 B reakers
Specificat i o n : M I L - C - 1 7361
1 5 - 1 00 Am peres
500 Volts Ac and 250 Volts De
3- P o l e
Type Gl @ Gl
Tec h n ical Data
ua
ls
A p r i l 1 99 1
Su persedes Technical Data 29-220,
pages 1 5- 1 6, dated Octo ber 1 978
M a i led to: E, C/29-200A
.c
om
Westinghouse Electric Corporation
Distri bution a n d Control B u s i n ess U n it
E l ectrica l Com po n ents Division
Pittsbu rg h , Pen n sylva n i a , U . S.A. 1 5220
Gl Complete breaker does not include mounting bases. Type required must b e ordered separately.
@ Front connected bases include cable l ugs. Cover cable sizes 2828CM to 1 00,000CM .
0)
breakers a r e furnished, f o r 2-pole applications m a k e connections to outside poles.
@ Instantaneous tri p setting at 1 200-1 400% Hi o r 500-700% Lo. Set at Lo position at factory.
® M a n ufactured to meet M I L-C
D or prior revisions o n l y .
17361
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Only 3-pole
P a nel board M o u nt i n g
Type
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.E
Single Base Front Connected
Single Base Rear Connected
Single Base, Rear Connected, Line
Front Connected, Load
For use with rear connected
fuse base
Double Base Front Con nected
Double Base Rear Connected
Style
N u m ber
Weight
3 1 5C364G03
3 1 5C364G02
2.75 Lbs.
3.00 Lbs.
3 1 5C364G04
458D569G02
458D569G03
3.00 Lbs.
3.50 Lbs.
4.00 Lbs.
A O B - A1 01
Breaker with
Single Front
Connected Base
...
National
Stock No.
5925-00-521 -2526
5925-0 1 - 1 24-0156
5925-00-728-5217
A O B - A 1 01
S i n g l e M o u nt; ng Base - Rear
C onnected
A O B - A 1 01
D o u b l e M o u nt­
ing Base ­
Front C onnect­
ed
...
National
Stock
N u m ber
--+---- -----5925-00-397-8258
5925-00-546-3258
5925-01 -022-5086
Cl
.c
om
Tech nical Data
29-220
Page 22
Fuse U n i t Assemblies
I
I
Complete Fuse U n it Assembly
1 5-25 Amps
1 5-25 Amps
50, 7 5 , & 1 00 Amps
50, 75, & 1 00 Amps
Front
Rear
Front
Rear
S h i p p ed As:
Fuse UniteD
Type
Style N u mber
AQB - F 1 01 A
AQB - F1 01 A
AQB - F1 01 B
AQB - F1 01 B
504C01 0 H01
504C01 0 H01
504C01 0H02
504C01 0H02
I
Fuse Unit Mounting Base
Style N u m ber
655D258G01 ®
655D258G05®
655D258G03
655D258G06
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tri
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lP
372 B 1 55G01
372B1 55G02
372B1 55G03
372B1 55G04
Connection
Rating
ar
Style N u mber
tM
an
ua
ls
AO B - F1 01 A a nd AOB - F 1 0 1 B fuse u n its
are designed for use in conjunction with
standard A O B - A 1 0 1 circ u it breakers on
circu its where a fa ult potential of u p to
1 00,000 a m peres exists.
CD
I ndividual fuses are not replaceable; replace with complete unit.
® To convert for use with high rating fuse unit (AQ B - F 1 01 B) in field, remove rejection pin per i nstructions on fuse u nit mounting base nameplate.
ww
Westi n g h o use E l ectric Corporation
Distribution and Control B u s i ness U n it
E l ectrical Compo nents Division
Pitts b u r g h , Pennsylv a n i a , U . S .A . 1 5220
April 1 99 1
.c
om
8
Tech nical Data
Westingh ouse Electr ic Cor por ation
Distribution and Control Busines s U n it
E l ectrica l Compo nents Division
Pittsb u r g h , Pennsylva n i a , U . S . A. 1 5220
29-220
Page 23
April 1 99 1
Supersedes Tech nical Data 29-220,
pages 1 7- 1 8, dated October 1 978
Mailed to : E, C/29-200A
Types AOB -A1 0 1 , N Q B -A1 01 ,
250 Volts De, 500 Volts Ac,
1 00 Am peres M aximum, 1 5,000 Amperes I . C.
Add i t i o n s
S h u nt T r i p : B reakers c a n b e equi pped
with a shunt trip attachment for tripping the
breaker from a remote point, a nd can be
suppl ied with coi l s for 1 20 volts, 60 cycle
or for 1 20 volts De. These shunt trips have
momentary rated coi ls a nd are suppl ied
with a n auxil iary switch to be wi red in
series for protection (Auxi liary switch i n ­
D rawings Ava i l a b l e
900J 429 - M aster draw ing f o r breaker and mounting bases.
900J439 - M aster drawing for breaker with fuse unit a nd mounting bases.
459 D448 - O utline and wiring d i agram for breaker on single base.
654D255 - Outline and wiring diagra m for breaker with fuse u n it on single base.
459 D449 - Outline and wiring d i agram for breaker on double base.
654D256 - Outline and w i ring diagra m for breaker with fuse u n it o n double base.
657 0205 - For fuse unit mounting base only.
cluded with t h e s h u n t trip. D o not o rder sep­
a r a te l y ) . Fo r 400 H z s h u n t t r i p co n t a c t
Westinghouse.
I n d iv i d u a l R e p ro d uctio n s: When req u i red, reproduction of master drawings, outline
drawings and certification sheets can be ordered as follows :
Shunt Trip - Volt­
age and Fre­
quency
4976D65G06
4976D65G02
4976D65G08
4976D65G04
1 20/60
1 20/Dc
1 20/60
1 20/Dc
Thermal M a gnetic
Thermal M a gnetic
Magnetic Only
Mag netic Only
ua
ls
an
tM
1
2
3
4
Full size photolithic tracing of master d rawing on vel l u m
Outline and d r i l l i ng p l a n on vel l u m
Certification data o n vellum
Reproductions of items 1 , 2, o r 3
N et Wei g h ts, Lbs.
A O B - A 1 0 1 - 6.00
N O B -A1 0 1 - 5.75
AQ B - F 1 01 A - 2.00
AO B - F1 01 B - 2.00
Fuse U n it M o unti n g Base - 3.00
Or d er i n g I nfor matio n : See page 4.
lec
tri
ca
Auxi l i ar y Switc h : B reakers can be sup­
plied with i nternally mou nted auxiliary
switch to open or close control circuits as
breaker operates. Each switch provides one
"A" contact and one "B" contact. "A" con­
tact is closed when breaker is closed, open
when breaker is open. "B" contact is open
when breaker is closed and closed when
breaker is open. When ordered with one
switch it is n o r m a l ly mou nted i n r i g ht pole,
may be specified mou nted i n left pole. A
m a xi m u m of 2 switches can be s u p p l i e d :
one i n left a n d o n e i n r i g ht pole. O rd e r by
descripti o n .
D escription
ar
Shunt Trip
Breaker Type
Style N u m ber
Item
lP
To order, specify style n u mber of standard
breaker required plus style number of shunt
trip attachment from table below. ( M ust be
factory i nstal led.)
.E
No te: O ne a u x i l iary switch norma lly s u p ­
pl ied w i t h s h u n t tri p attachments for cut-off
switch and additional switches can not be
supplied on breakers with shunt trips.
Handle Lock: When specified, o rd e r sty l e
1 6 1 4485.
Handle Boot: When specified, o rd e r sty l e
n u mber 752B729H01 .
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Rear Stud: Complete with 4 nuts, styl e
n u mber 208B801 G 0 1 .
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F u n g u s - Mo istur e Resistant Tr eatment:
(JAN -T- 1 52, J A N - C - 1 7 3 or M I L- V- 1 73) .
If specified, contact Westi ng house. External
parts are coated.
Tech nical Manua l : Navships No. 362-23 1 4.
T h i s b o o k l e t p e r M I L - M - 1 5 07 1 . W h e n
requi red, order BVR-TM-475C.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
.c
om
Technical Data
29-220
Page 24
O ut l i n e D i m ensio n s, A Q B - A 1 01 Breaker
S i ngle Breaker ( R ear Mounted)
For S i ngle Breaker Mounted Base
5�
r
an
61
2
ua
ls
Copper extensions
for megger readings.
Copper extensions 1*----­
can be broken off
with pliers if not
neede�d�·--.-L-•���
I
2�
8
32
3 1@
6
tM
m
ate
19
ar
f •
:s
C ir cu it Br eaker Handle
Lo c k i n g Device
Dr i l l i n g P la n
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tri
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lP
For Single Mounted Base
������d
ea ke r ou tl in
Br
Reverse position of lock to
breok""'m""";"g
e
OFF
1�Dia. megger test holes
Westinghouse style 1614485
( Not supplied with circuit bkr.)
1
4
316lP
9
132
�--�----�--�. L----L--�_j __J
.098 Dia. hole for handle locking device or warning tag
Westi nghouse E l ectric Corporation
Distri bution and Control Busi ness U n it
Electrical Components Division
Pittsburgh, Pen nsylva nia, U . S . A. 1 5220
Apr il 1 991
29-220
Page 25
Types AOB-A1 0 1 , N O B -A1 0 1 ,
250 Volts De, 500 Volts Ac
1 00 Amperes Maximum, 1 5,000 Amperes I . C .
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
April 1 99 1
S u persedes Tech nical Data 29-220,
pages 1 9-20, dated October 1 978
Mai led to: E, C/29-200A
.c
om
8
Technical Data
Westingh ouse Electric Corporation
Distribution a n d Control B u s i n ess U n it
Electrical Components Division
Pittsbu rg h , Pennsylva n i a , U . S.A. 1 5220
AQB-A1 01 Breaker Mounting Bases
For Double Mounting Base Front Conn ected
For Two Breaker Mou nting Base
Between !i_ of next base
Complete
hardware
supplied
except far
copper
bus bars
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tri
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For Double M o u nting Base
Rear Connected
l2 Dio. mtg. hole
.E
17 '
32 C bore ( 6 holes l
Fr o nt Cover Cutouts
For Dou ble Mounting Base
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Base outline
Round head screw
Coble entrance
Complete
hardware
supplied
except for
copper
bus bars
.c
om
Technical Data
29-220
Page 26
Outline Dimensions, Cont i n u ed AQB-A 101 Breakers, Single Base with Fuse Unit
For Mounting of Breaker
( Front Connected)
I
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r
0
t "
cd,! ""
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16 R
61J
1
6
@:
�-� �rr
�
�·I
��lli
�-��-
� -1---=-- 24
��8
� --I
I
3
� 4+-- 1 16 --1
� 3�8 -
---+1
-t?
8
�[
Rejection
screw
A
!
"'
!
el
,,
i
1
2-
I
� 90-32 Inserts
( 2 l for fuse
pul l e r screws
-
AQB-A I O I
�i;l; �
f
' n�
---- �:=•w ' 1 5
6
00
'
l
j
.
:
''
lit=::-== -- ---=---=-
'
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"
AQB - FIOIA
or
AQB - FIOI B
II
_-,
:
'I
'I
1
- -- - -- ----
-
�
t
2-
- _:frt---L-
li
L ��
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u
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16
I
6 16
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n
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r---=·
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I
'-ur
I
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6
cu- r
I �-
23
32 Mox. across corner s
_-1f R
'
- -- -- ---------
ar
tO
'--- '---'
� � ��=+====�
:I I �
For Dimensions of Breaker and Mounting
Base See Drawing N u m ber 459D448
L�
a.--
� �_co
l
�
-u-u-1 b
32
IIL
I
= Is
9, '
I nsulation sheet
( not suppl ied )
p
�- 16Th d.
l-- 2 12
Terminal for M i n imum Navy Cable Thfa-3-2828 C . M .
and M a x i m u m Navy Thfa - 1 00 - 1 00,000 C . M .
3�4 -
ca
62l
l
s4
T hick insulation
recommended
lP
'l'
4
Front Panel ---! I
2 16
@
61
ua
ls
�
an
/
�
�
4
UiE . ,-/1
For Mounting of Breaker
( R ear Connected)
tM
Copper extensions for megger readings
( may be broken off if not requ i red )
D ri l l i n g P l a n
ww
w
.E
lec
tri
F o r R ear Connected
Studs and M ounting
Bases
I
4-20 Tap (6 holes)
for mounting bases
------�-- 2 �
4
1� Dia. megger ( 3 holes)
2�4
't_of Breaker
Front Panel C utout
West i n g house E l ectric Corporation
Distri buti o n and Control Business U nit
E l ectrical Components Division
Pitts b u rg h , Pen nsylva nia, U . S . A. 1 5220
Apri1 1991
i-:�-: 33i�-
ft-
-
For M o u nting of Two Breakers ( Front Connected)
61
4...,1,...1
!-- 61�--"'l
_
r
f.. I
-- �-------l �,�
��u�
em�
e � ----------- -���
u��
��
,m�
�
6r_l
tM
@
E==+=====-l
,__..,
I
2)
. 1 0-32 Inserts(
for fuse puller screws
""�
t-� p �I �3r�%
-,
16 c
���-����:--
-�
For Dimensions of Breaker and Mounting
Base See Drawing Number 459D449
,-----13]
6
I
I
-�
I
b
I
!I
, ._
!>
Ill: -
[,�
_ _ _ _
U
�'
T
x
� Ma .
across corners
]:
.I
------ - -- --- -- - pu
1 5§
ar
6J cfJ cJ:J
;
___;_t_
-i-'
2�
recomm ended
- -
-
-- - -
lP
6�
I ...
AOB - F IO I A or
AOB-FIOIB
.
i� Thick Insulation
'
rr
932
tri
10
11 � 7
JI 1 ,-!
f
For M o u nting of Two B reakers
( Rear Connected)
ca
20
j::-
�
l6
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
��
4
Page 27
ua
ls
A O B -A1 01 B reaker, D o u ble B ase with Fuse U n its
13
29-220
Types AQB-A1 0 1 , N QB -A1 01 ,
250 Volts De, 500 Volts Ac
1 00 Amperes M a ximum, 1 5,000 Amperes I. C .
April 1 99 1
Supersedes Technica l Data 29-220,
pages 21 -22, dated Octob e r 1 978
Mai led to: E, C/29-200A
r
.c
om
Cl
Technical Data
Westinghouse Electric Corporation
Distri bution and Contro l Busin ess U n it
E l ectrical Components Division
Pittsburgh, Pen nsylva n i a , U . S . A. 1 5220
Terminal for Minimum Navy Cable Thfa-3-2828 C . M .
a n d Max•mum Navy Thfa - 1 00 - 1 00.000 C . M .
lec
,.:-----c;----------- 1 91� --------�l 1'106 Min. d i a . ( 6 holesl tor
�----9� -----�··
rear connected stud
I
.E
D r i l l i ng P l a n
For Rear Connected
Studs and Mounting
Bases
2
. 50-20 Tap ( 10 holes l
for mounting bases
32 .....
ww
w
II
i
Front Panel Cutout
r--- 243
I 1'1
lL : L J
I
2
f-- 1
_
6196
I
-
,
[(
.
[(
I(
'
_)
-
-
�-
.,
_ .)
HJ+IJ �- z 15-1 16
- 2 ��
16 -
2�3 -
6196
T
\
-
Breaker outline
II
-32
l
I
.i
'If
\
!
3
1
1 a !3_
T
T
13
16
�� 1
!4
1� Diameter megger
( 6 hole sl
Techn ica l Data
.c
om
29-220
Page 28
Characteristic Curves
400 Cycle B reakers
40
30
20
\
-- Instantaneous
\ \
' \
i=
<.!>
40
30
20
15
10
'
1
0
0
N
0
0
r0
Percent Rated Current
0
0
<t
0
0
tO
V>
J!i
" ""'
c
(!)
I
'
0
0 0
0 0
O perating C h a racteristics
Trip U n it Rating 1 5- 1 00 Amperes
50'C Ambient - Cold Start, 60
Ac or De, Thermal M a g netic
0
0
0 0
0 0
<0 0
a) 9
I
0
0
0
0
2
0
:ii
N
Trip U n it R at i n g
I
I
I
70
I I
0
0
lil
0
0
�
60
50
D
c
0
u
'"
(f)
0
0
s;
\
\\ I
40 30
�
20
15
10
-
0
0
0
0
Percent Rated Current
5
4
3
2
tri
10
1.0
1.5
2.0
2.5
3,0
3.5
4.0
4.5
To determine the trip unit rating to be used,
when the load current and ambient are
known, multiply the load c u rrent by the fac ­
tor obtained from this curve for the known
ambient. The result will be the ideal trip unit
rati ng. However, since trip u n its are fur­
nished only with standard ratings as per
Navy spec., select the standard trip u n it
whose rating is equal to or one rati ng higher
than the ideal rati ng.
,\.
',
0 0
0 0
c0 g-
N
\
<.!>
D
c
0
u
<l)
(f)
'�
·�''
', ' ,
' I
I
0 0 0
0 0 0
ill C!J 0
0 0
0 0
"' 0
-
N
0
0
0
r0
- - - 400 Hz
Instantaneous
Trip at 1 200% to
1 400% Rating
'
1\
\I \
<l)
20
0.5
\.
5
4
3
2
I
E
i=
30
lec
.E
5
4
3
40
Factor
Instantaneous
Trip at 850% to
1 1 50% Rating
'\
\I \
1
40
30
20
ca
Specification M I L- C - 1 7361
This specification covers all thermal mag­
netic AQB breakers. It req uires that they
carry 1 50% of c u rrent ratings for at least one
hour and that thermal elements i n itiate tri p ­
ping at 225% rated current with i n one hour
and at 600% i n 2 5 seconds p l us or minus
25%. The instantaneous mag netic setti ngs
for each continuous ratings are based on in­
tended applications. (Thermal tri pping tests
are conducted with all poles in series i n
5 0 ' C ambient; e a c h p o l e is tested individ­
ually to check magnetic settings.)
0 0
0 0
w 0
V>
II
80
'
10
I
Operati n g C h a racteristics
Trip U n it Rating 1 5 - 1 00 Amperes
50'C Ambient - Cold Start
400 Cycle Ac, Thermal Mag netic
90
Cycle,
0
0
co
0
;;; �
Per Cent Ra t e d C u r r e n t
:I
I:
E
i=
I I
5
3
2
i
0
0
\.
5
3
2
'-\'\
5
4
3
2
1
40
30
20
\ \
10
I
40
30
20
15
10
\.
1
"0
c
0
u
<l)
(})
�
\
\\
E
0
c
Tri p at 500% to
700% Rating
1\
<l)
�
- - - 60 Hz
Instantaneous
Trip at 1 700% to
2300% Rating
an
l
1\
I
50
40
30
20
tM
\
- - - I nstantaneous
Tri p at l200% to
1400% Rating
5
4
3
2
ar
4
3
2
G enerator B reakers
lP
:::>
0
I
::'
:>
4
3
2
ua
ls
A O B - A1 01 B reakers
- Instantaneous
Trip at 500% to
700% Rating
\
\\
1
40
30
20
15
10
·'
5
4
3
2
'\")
II It
1
0
:2
0
0
N
0 0
0 0
r0 q
Percent Rated Current
0 0 0
0 0 0
w oo g
0
0
"'
-
0
0
0
N
0
0
0
r0
5 0 ° C Ambient Cold Start,
"G" rati ng, 60 or 400 Cycle
Ac, or De - Thermal Mag netic
ww
w
Westi nghouse E l ectric Corporation
Distri bution and Control B u s i n es s U n it
E l ectrical Components Division
Pittsburgh, Pen nsylva n i a , U . S . A. 1 5220
April 1 991
.c
om
Tec h n ica l Data
Westinghouse Electric Corporation
Distribution a n d Control Busi ness U n i t
E l ectrical Components Division
Pittsburgh, Penn sylva n i a , U . S.A. 1 5220
April 1 99 1
Supersedes Tech nical Data 29-220,
pages 23-24, dated Octo ber 1 978
Mailed to : E, C/29-200A
tM
AOB-A250 breakers can be ordered with
undervoltage release devices, a u x i l i ary
switches and shunt trip attachments com­
plete with auxiliary switc h . These attac h ­
ments are also easily i nstalled i n the field.
ar
AO B - A250 circuit breakers are used pri­
marily to protect feeder circuits, however,
those foll owed by "N M"" in the price table
have higher magnetic settings to a l l ow for
motor starting. B reakers with settings spe­
cifically for use with generators are desi g ­
nated " ' N G " i n t h e price table.
an
These breakers are available with i nter­
changeable trip units i n ratings of 1 25, 1 50,
1 7 5, 225 and 250 a m peres. The n o n ­
automatic N OB -A250 carries a 250 a m pere
rating and has copper cond uctors re placing
the trip unit. Special gen erator breakers have
trip u n its rated at 1 00, 1 60, a nd 250 a m peres.
I nterrupting R at i n g s
20,000 Amps Ac and 1 5,000 A m p s De
Low
High
De
Low
High
I
Complete Breaker CD
De
Two-Pole 500 Volts Ac, 250 Volts
225-N
225-N M
250-N
250- N M
250®
650
1 950
650
1 950
650
1 950
1
1 300
3900
1 300
3900
1 300
3900
650 1 300
1 500 3000
650 1 300
1 700 3400
Non-Auto
1
650
2250
650
2250
650
2250
1 300
41 00
1 300
4 1 00
1 300
4 1 00
650 1 300
1 770 3550
650 1 300
1 850 3800
Non-Auto
1
31 3C682G03
31 3C682G04
31 3C682G05
31 3C682G06
31 3C682G07
31 3C682G08
De
. . . . . . . .
. . . . . . . .
650 1 300
31 3C682 G 1 3
3 1 3C682 G 1 4
31 3C682G 1 5
Three-Pole 500 Volts Ac, 250 Volts
650
1 950
650
1 950
650
1 950
De
1 300
41 00
1 300
4 1 00
1 300
4 1 00
31 3C682 G 1 8
31 3C682G 1 9
31 3C682G20
31 3C682G21
31 3C682G22
31 3C682G23
5925-00·248-1 425
5925-01 ·031 ·9909
5925-01 -229-4448
650 1 300
1 770 3550
650 1 300
1 850 3800
Non-Auto
31 3C682G24
31 3C682G25
31 3C682G26
31 3C682G27
31 3C682G36
5925-0 1 - 1 73-2587
5925·01·210-5267
650
2250
650
2250
650
2250
1 300
3900
1 300
3900
1 300
3900
.E
1 25 - N
1 25 - N M
1 50 - N
1 50 - N M
1 75 - N
1 75 - N M
225-N
225-NM
250-N
250-N M
250®
1
650 1 300
1 500 3000
630 1 300
1 700 3400
Non-Auto
1
1
w
Three-Pole 500 Volts Ac, 250 Volts
1 1 7 5 2350
1 950 3900
. . . . . , , .
ww
1 00 - N G
1 60 - N G
250 - N G
. . . . . . . .
. . . . . . . .
650 1 300
Breaker Frame OnlyCD
1
1
\
Trip U n i t Only
Style
N umber
Style
N u mber
National
Stock No.
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
5925-01 -796-4371
5925·0 1 -796-437 1
5925·0 1 -796-437 1
5925·01-796-4371
5925-01 -796-4371
5925·01 -796-437 1
4520371 G03
452D37 1 G04
4520371 G05 5925-00-793-6865
4520371 G06
4520371 G07 5925-00- 175-5058
4520371 GOB
452D370G01
452D370G01
452D370G01
452D370G01
452D370G03
5925·01 -796-4371
5925-0 1 -796·4371
5925-0 1 -796-4371
5925-0 1-796-4371
4520371 G09
452D371 G 1 0
452D37 1 G 1 1
452D37 1 G 1 2
29B271 0G05
452D370G01
452D370G01
452D370G01
5925·01 -796-4371
5925-01 -796-4371
5925·01 -796-4371
4520371 G 1 3
452D371 G 1 4
4520371 G 1 5
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-QQ. 789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
4520371 G 1 8
4520371 G 1 9
4520371 G20
4520371 G21
4520371 G22
4520371 G23
5925-00-795-4958
5925-00-839-0289
5925-00-795-4957
5925-00-839-0290
5925-00-796-4439
............. .
452D370G02
452D370G02
452D370G02
452D370G02
452D370G04
5925·00-789-37 1 8
5925·00-789-3718
5925·00-789-37 1 8
5925-00-789-37 18
5925-00-83 1 ·8801
4520371 G24
4520371 G 2 5
4520371 G26
4520371 G27
298271 OG06
5925-00-839-0291
5925-00-839-0292
5925-00-839-0293
5925-00-690-7568
5925-00-831 -8800
4520371 G28
4520371 G 2 9
4520371 G30
5925-00-852-7809
5925-00-795-4956
. . . . . . . . . . . . ..
National
Stock No.
5925-00-064-7834
Generator Circuit Breaker Applications
lec
1 1 7 5 2350
1 950 3900
. . . . . . . .
I
. ..
. ..
31 3C682G09
31 3C682G 1 0
31 3C682 G 1 1
31 3C682 G 1 2
31 3C682G31
Two Pole 500 Volts Ac, 250 Volts
1 00 - N G
1 60 - N G
2 50 - N G
5925·01 -233-6525
........... .
tri
1 25 - N
1 25- N M
1 50 - N
1 50- N M
1 75 - N
1 75 - N M
National
Stock No.
Style
N umber
ca
I
lnst. Trip Setting - Amps
lP
List Prices See Price List 29-020
Ac
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
S pecificat i o n : M I L- C - 1 7361
1 25-250 A m peres
500 Volts A c and 250 Volts De
Two and T h ree- Pole
l
Page 29
Types AOB -A250, N Q B - A250
250 Volts De, 500 Volts Ac
250 Amperes Maximum, 20,000 Amperes I . C .
A Q B - A250 a n d N Q B -A250 B reakers
Cont.
Ampere
Rating
29-220
De
· · · · · · · · · · · · · ·
5925-0 1 ·235-07 1 8
5925-0 1 · 1 92·3985
5925-01·272-3805
... . ...... ....
1
Generator Circuit Breaker Applications
31 3C682G28
31 3C682G29
31 3C682G30
5925-01 -080-2226
5925-0 1 - 1 04-4625
.. .. .. .. . . . . . .
452D370G02
452D370G02
452D370G02
5925-00-789-37 18
5925-00-789-3718
5925-00-789-37 1 8
1
Note : Breakers with ratings other than than those g iven on this page are considered as special and full description data must be provided.
Styles listed include sli p-type connectors for rear connections. Order front terminal con nectors separately if required;
see page 30. No additional charges for front connectors ordered with breakers or frames.
CD
® Type NQB-A250 non-automatic.
Tech nical Data
.c
om
29-220
Page 30
AQB-A250 and NQB-A250 Breakers, Conti n u ed
List Prices S ee Price List 29-020
Instantaneous
Tn p Settmg
in AmperesGl
low
H igh
I
Breaker Frame Only®
Complete Breaker®
National
Stock No.
Style
Number
Style
N umber
National
Stock N o .
452D370G01
452D370G0 1
452D370G01
452D370G0 1
452D370G01
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-437 1
5925-00-796-437 1
400 Cycle, Two-Pole, 500 Volts Ac
1 25 - N H
1 50 - N H
1 75 - N H
225-N H
250- N H
1
91 0
91 0
91 0
91 0
91 0
1
1
1
1
1
560
560
560
560
560
1
31 5C574G03
31 5C574G05
3 1 5 C574G07
3 1 5 C574G09
3 1 5C574G 1 1
1
400 Cycle, Two-Pole, 500 Volts Ac Generator Circuit Breaker Applications
3420
3420
4200
31 5C574 G 1 3
31 5C574G 1 4
31 5C574 G 1 5
.. .. .. ........
.. .. .. .. .. .. ..
.. .. .. .. .. .. ..
400 Cycle, Three-Pole, 500 Volts Ac
910
910
91 0
910
910
1 25 - N H
1 50 - N H
1 75 - N H
225 - N H
250- N H
I
1 560
1 560
1 560
1 560
1 560
1
31 5C574G 1 8
3 1 5C574G20
31 5C574G22
31 5C574G24
31 5C574G26
5925-01-075-8931
5925-0 1 - 1 00-4027
5925-01 - 1 93-6055
1
452D370G01
452D370G01
452D370G01
5925-00-796-437 1
5925-00-796-437 1
5925-00-796-437 1
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
400 Cycle, Three-Pole, 500 Volts Ac G enerator Circuit Breaker Applications
1 00- N G H
1 60 - N G H
250- N G H
2020
2020
2520
3420
3420
4200
31 5C574G28
31 5C574G29
3 1 5C574G30
... .. .. .. .. .. .
..... .. .. .. ...
..... .. ... . .. .
452D370G02
452D370G02
452D370G02
Style
Number
National
Stock No.
457D446G03
457D446G05
457D446G07
457 D 446G09
457 D446G 1 1
.
.
.. ..........
......... ....
.
· · · · · · · · · · · · · ·
.. .. ....... .. .
..............
· · · · · · · · · · · · · ·
457D446G 1 3
457D446 G 1 4
457D446G 1 5
5925-00-758-6227
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
457D446 G 1 8
457D446G20
457D446G22
457D446G24
457D446G26
5925-00-803-5491
5925-00-803-5488
5925-00-899-9904
5925-01 - 1 93-6056
5925-01 - 1 49-4269
5925-00-789-37 1 8
5925-00-789-3718
5925-00-789-37 1 8
457D446G28
457D446G29
457D446G30
5925-00-238-5198
5925-00-803-5489
... .... .. . ....
an
2020
2020
2520
tM
1 00-NG H
1 60 - N G H
250-NG H
Trip Unit Only
ua
ls
I
Cont.
Ampere
Rating
· · · · · · · · · · · · · ·
I
One Stud Assembly complete with 4 nuts
Terminal Mtg. Block (No Studs)
Mounting Block and Stud Set (3 Studs)
Style
N u mber
National
Stock No.
lP
Description
ar
Switchbo a rd Mo u n t i n g
Complete breakers and frames i nc l ude mounting hardware. Female s l i p conn ectors are
mou nted i n breaker base to plug onto stud projections of term i n a l mounting block asse m ­
blies. Order one m o u n t i n g block assembly f o r e a c h end of breaker.
I
I
ca
1 631 443
31 3C681 G01
3 1 3C680G02
( N et Weight - 2% lbs.)
F ro nt Co n nected B reakers
For connections made at front terminals, pressure-type l u gs req u i red . If specified on same
order, conn ectors furnished no charge. One con nector per term i n a l . Select below.
Cable
Amps
Description
Style
I National
i
� ��
250
- 1 75
I
i
I
I
tri
1
N40-N75
N1 OO- N 1 25
N 1 50- N200
I
Solderless
Connector
I
I
N umber
20B3055 H 1 4
20B3055H 1 5
20B3055 H 1 6
I
Stock N o .
T-------------------
lec
I
Range
K i t to C o nvert A Q B Frame to N Q B
B reaker
3
Style
N u mber
National
Net
__
e ig h__
St oc k N o . ____rW
t
�_
----r-______
29B271 OG06
... .. . ... .. .. .
% lb.
.E
Poles
Gl For 400 cycle breakers with higher instantaneous trip rati ngs, refer to Westi nghouse.
@ Styles listed include s l i p-type con nectors for rear connections. Order front terminal con nectors separately if
required. No additional charges for front con nectors ordered with breakers or frames.
ww
w
Westinghouse E l ectric Corporation
Distribution and Control Busines s U nit
Electrical Components Division
Pittsburgh, Pennsylva nia, U . S . A. 1 5220
April 1 991
8
Westinghouse Electric Corporation
Distribution a nd Control B u si n ess U n it
E l ectrical Compon ents Division
Pittsburgh, Pen nsylv a n i a , U .S.A. 1 5220
April 1 99 1
S u pe rsedes Tec h n ical Data 29-220,
pages 25-26, dated Octo ber 1 978
M a i l ed to: E, C/29-200A
Types AOB -A250, N O B - A250
250 Volts De, 500 Volts Ac
250 Amperes Maximum, 20,000 Amperes I . C.
- M o ist u re - Resistant Treat­
(JAN -T- 1 52; JAN - C - 1 7 3 or M I L­
If specified, contact Westi ng house.
parts are coated; tri p u n its are not
lec
.E
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24- 32
90-1 30
1
I
.c
om
Style
N u m ber
452D377G05
tM
28 V De
1 1 5 V Ac
Voltage
Range
an
I
1 20 V De
450 V Ac
90-1 30
360-500
I
452D377G07
I
National
Stock No.
5925-00-831 -8808
5925-01 -007-5836
U n dervoltage Device: Automatically trips breaker when l i ne voltage drops below 40 to
60% of norma l . After u ndervoltage coil has dropped out and tripped breaker on reduced
voltage, it automatica lly resets by breaker action. ( If undervoltage coil is energized to 80%
of norm a l ) . Select device below. Net weig ht., 1 . 1 2 l bs.
Nominal
Voltage
4 5 0 Ac,
60 Cycle
250 De
33 De
I
Voltage
Range
I
360-500
Pickup and
Seal Volts
( M in i m u m )
360
1 75-355
30- 36
1 50
22
I
Dropcut
Voltage
Style
N umber
National
Stock
N u mber
290
45
25
5
452D837G01
5925-00-920-3099
452D837G02
452D837G03
5950·00-790-4869
Max.
M in.
M in.
M in.
I n d i v i d u a l R e p roductions: When req uired, reproduction of master drawings, outl i n e
drawings and certification sheets can be ordered as follows:
Item
I Description
1
2
3
4
tri
Technical Manual - NAVSHIPS No. 3622 1 64: This booklet per M I L- M- 1 507 1 . When
req u i red, order BVR-TM-379A.
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AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ca
Fungus
ments:
V - 1 73) :
External
treated.
Nominal
Voltage
ar
A u x i l iary Switch :
If required, style
452D379G 02, national stock number 593000-732-8401 . I nte rna l ly mou nted switch
is used to open or close control circuits as
breaker op erates a nd is provided with ' 'A"
and " B " contacts. "A" contact is normally
closed when breaker is closed and open
when breaker is open; "B" is norm a l ly
open when breaker is closed and closed
with breaker open. It has the fol lowing rat­
ing at given voltages : 1 5 amp - 1 2 5, 250
or 460 volts Ac; % amp- 1 25 volts De; '!..
a m p - 250 volts De. Net weight, . 1 7 lb.
Page 3 1
S h u nt Tri p : Shunt trip attac h ments for tripping the breaker electrica l ly from a remote point
are listed i n table below. Shunt trips have momentary rating only and for protection must be
connected i n series with a u xil i a ry switch. Auxiliary Switch (style 452D379G02) is included
i n shunt trip n u m ber shown below. Do not order separately. Net weig ht, .70 lb.
lP
M echan ical I nterlock : If mechanical
i nterlock (switchboard use) is desired for a
pair of breakers, order by description. ( N ot
subm itted for Navy approva l . )
29-220
ua
ls
AOB -A250 a n d N Q B - A250 B reakers, Contin ued
Additions
H a n d l e Loc k : If required, order style
1 7 201 0 1 . O ne furnished no charge per
1 0 breakers ordered, when requested. Net
wt., . 1 5 1b.
Tech n ical Data
I
I
Full size photolithic tracing of master drawing on vel l u m
Outline a n d d r i l l i ng plan on v e l l u m
Certification data o n vel l u m
Reproductio n s o f i t e m s 1 , 2 , o r 3
D rawings Ava i l a b l e : Master draw i n g 900 - J -376; front and rear connected breaker out­
line, drilling and wiring diagra m 4 5 2 - D -834.
O rderi n g I n format i o n : Page 4
Net We i g ht, Lbs.
AOB Complete, 3 - Pole A250
NOB Complete, 3 - Pole N 250
3 - Pole AOB, N O B Frame
AOB Trip U n it, 3 - Pole
20.50
1 7 .50
1 7.00
3.50
.c
om
Cl
Technical Data
29-220
Page 32
O ut l i n e D i m e n s i o n s AQB -A250 B reaker
line End
Front face of mounting
sheet or channel
Supp o r t blocks ore not supplied
wtth breaker:,_ but must be ordered
separately. t<efer to drawing
313C680 Al l ports necessary to
nvert o breaker ore included .
3
a·16Stud
I
'--4f-----''---+--+-+ 4-20 Mtg.
ua
ls
;i.
2 16
----+--+--+
-t--����:J�K=!B=f��T�co
Screws
A
Frome
Nameplate
load End
Warning
Nameplate
Front Sheet
See wiring diagram
and dril ling pion
4
ar
Visible amp rating
interchongeo ble
trip unit
tM
an
11
Handle loc king Device
( N ot S u pplied With
C i rc u i t Br e a ke r )
Nuts and 1 washer supplied with stud
�
.k--1
3
['
_J�r--T
Cable Range A
B
MCM
76
20B3055H14
c
M in
.E
Max
50
1 211A.
6"h.
5"h.
20B3055 H 1 5
1 25
1 00
13
6"A•
&'A.
20B3055H 1 6
200
1 50
1 3'/.•
7'hz
6'hz
Front Connected Terminals are not Supplied with
Circuit Breaker
w
1 oia. 3 holes
for megger test
ore on 24 centers
Front Con nected Solderless
Terminals Identification
Style Number
i
Reor connections
� ore on 3"centers
Front co� nections
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I
15
tri
Flat washers, lock
washers and nuts
supplied with terminal
mounting blocks
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Front Sheet D r i l l ing Template
Wiring D iagrams
AQB
NQB
Line End
Line E n d
JU }{{
load End
load End
�))
When U nder-Voltage
Release is Provided
r - - - - - - - -,
i
:
1
I 1 i
?. Y.
:
1
L__
_
.-
: Undervoltoge
--J
re lease
?
,
leads 18
long
-
-----
-,
i l l l :
i' i' l.
) )) i
A and 8 A uxi l i ary
SWitCh 3 leads
I
18" long ----- :
: m�
1
When S h u n t Trip and Auxiliary
Switch is Provided
I
�w�\
L.
•
_
_
_
Note:
The auxiliary switch must be used with each shunt
trip. Connect one side of shunt trip i n series with "A''
contact (Closed when breaker is closed) of auxiliary
switch when connecting to power supply.
:
J
Shunt trip 2
leads 18" long
ww
Westing house E l ectric Corporation
Distribution and Contro l B u s i n es s U n it
E l ectrical Compon ents Division
Pitt sb u rgh, Pennsyl vania, U . S .A . 1 5220
April 1 991
April 1 99 1
S u persedes Technical D a t a 29-220,
pages 27-28, dated October 1 978
M a i l e d to: E, C/29-200A
29-220
50
8
6
Time
I
I
50
25 Seconds+ 2 5 %
Less Than 1 Hour
600
225
1 50
20
I II I I
Tripping
20
10
8
6
M i n i mum
40
Maximum
Minimum
20
20
8
6
10
8
6
10
'
4
3
I
Tripping
Time
I to 2 M m
5 to 15 Min.
=
-
_
2 0 M m o r More
5
3
2
I
40
0
5
" ·"'-
20
• •
10
4
5
3
2
I
\1\.
\ \
1\
10
4
0
o
o o
o
�
Per Cent Rated Current
o
2
� �
o
o o
g ��
jI
• •
o
o
o
� g g
-
N
rn
O perati n g C h a racteristics
Trip U nit Rating 1 25 -250 A m peres
5o·c Ambient - Cold Start
400 Cycle Ac
I
ca
40
1\
I
4o
o
20
M a x i mum
lP
4
3
4
3
2
tM
I
40
I
ar
4
3
1\
Percent of Tr i p
Element Ratings
150
10
4
3
I III I I
300
200
30
More Than 1 Hour
I II I I
ua
ls
I II I I II
30
4 0 0 Cycle B reakers
A O B - A250 G e nerator B reaker
Percent of Trip
Element Rating
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
I
Page 33
Types AQB-A250, N Q B -A250
250 Volts De, 500 Volts Ac
250 Amperes Maximum, 20,000 Amperes I . C .
C h a racterist i c C u rves
A O B - A250
I
.c
om
Cl
Techn ica l Data
Westinghouse Electric Corporation
Distribution a n d Control Busi ness U n it
E l ectrical Components Divi sion
Pittsb u rg h , Pennsylva n i a , U . S . A. 1 5220
40
20
Trip U n i t R a t i n g
20
10
7
"'
7
0 0 0 0 0 00 0 0 0 0 0 0 0
o o o oo o o o o o o o
o l{')
- - N 1"1 ¢ ,,nu; CD 0 Ill 0 0 0 0
0 0 0 0
0 00 0
0- 0 0 0
9. �- 2- �-
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I
..
.6
.5
Percent Rated Current
-
- N 1"'l V
lD
.E
Operati n g C h a racteristics
Trip U n it Rating 1 2 5 - 250 Amperes
5o·c Ambient - Cold Start, 60 Cycle,
Ac or De
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Specification M I L- C -1 7361
This specification covers all thermal - mag­
netic AQB breakers. It requires that they
carry 1 50% of cu rrent ratings for at least
one hour a nd that thermal elements initiate
tri pping at 225% rated cu rrent with i n one
hour and at 600% i n 2 5 seconds plus or
minus 25%. The instantaneous mag netic
setti ngs for each conti nuous rati ngs are
based o n intended applications. (Thermal
tri pping tests are conducted with all poles in
series i n 5o·c ambient; each pole is tested
individually to check magnetic settings.)
90
5
tri
u
,..
u
I0
3
I
B
.6
5
o oo
O ll'l o
- -N
o o oooo o o o o o
o o oo o o o o o o o
1"1 o;t ii'HD CD0 11') 0 0 0 0
Percent Rated Current
-
-
N ff1 -.t iD
I
I
80
1\
2
70
o oo o
o ooo
O
O
�Q
�- Q
:-�f �
60
50
40
30
Ope rati n g C h a racteristics
Trip U n its, Types 1 00 N G H , 1 60 N G H ,
250 N G H , 1 00 N G , 1 60 N G a nd 250NG for
use with generator circuit breakers 5 0 ° C
a m bient - C o l d Start A c o r D e
20
10
0
o
0.5
Foelor
1.0
1.5
2.0
2.5
3,0
3.5
4.0 4.5
To determ ine the trip u n it rating to be used,
when the load current a nd a m bient are
known, m ultiply the load current by the
factor obtained from this curve for the
known ambient. The result will be the ideal
trip u n it ratin g . H owever, since trip u n its are
furnished only with sta ndard rati ngs a s per
Navy spec., select the standard trip u n it
whose rating is equal to or one rating
hig her than the ideal rati ng.
Technical Data
.c
om
29-220
ca
lP
ar
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an
ua
ls
Page 34
"C
�·
.E
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tri
0.
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Westi n g h o u se E l ectric Corporation
Distributi o n a nd Control Busi ness U nit
Electrical Compon ents Division
Pittsburgh, Pennsylv a n i a , U . S.A. 1 5220
April 1 991
.c
om
Tec h n ica l Data
29-220
Westinghouse Electric Corporation
D i st r i bution a n d Control B u s i ness U n it
E l ectrical C o m p on ents Division
Pittsb u rg h , Pen nsylva n i a , U . S.A. 1 5220
Apri l 1 99 1
Su persedes Tec h n ica l D a t a 29-220,
pages 33-34, dated October 1 978
M a i led to: E , C/29-200A
ar
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ca
tri
A Q B - L F250 fused Navy circuit
breaker
.E
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Fuse Tri p
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Desc r i p t i o n
These breakers are essentially sta ndard N avy
circuit breakers i n corporating current l i mit­
ing fuses i n o n e compact device. The fuses
are m o u nted in a removable m o lded hous­
i n g which plugs i nto and becomes a n
i n tegral part o f the breaker. Fuses a r e easily
replaced from the front si mply by loosen i n g
f o u r screws and p u l l i n g o u t the f u se
housing.
Lever
Instantaneous Trip
Adjusting Wheels
Sl ide Type
Connectors for
Fuse Contacts
A n i nter l o c k prevents t h e breaker being
cl osed i f a n y of the three f u ses are blown
and the fuse housing is so desig ned that all
three fu ses m u st be u n blown before the
housing c a n be mou nted in its correct
posi t i o n on the breaker. Removal of the fuse
h o u s i n g a u to m at i c a l l y o pens breaker and
provides visua! assura nce that the circuit is
discon nected .
O p e r a ti o n
The the rmal mag netic tri p u n it of the sta n d ­
a rd breaker provides protect i o n o n overloads
and s hort c i rc u its oelow a predeterm i n ed
value without affect i n g the f uses. H owever,
these spec i a l ly coord i n ated fuses assu me the
fault clearing d uty o n high m a g n itude s hort
circ u its and extend the i nterru pti n g capacity
to 1 00,000 a m peres.
The co m m o n trip feature of the circuit
breaker is retained so that all poles open
when any fuse blows. Fast acting cu rrent
limiting fuses clear sh ort circu its i n less t h a n
one- half cyc le. Co nseq u e ntly, p e a k let­
thro u g h c u rrents are g reatly reduced and
bus-s u p porting members or c u rrent carrying
parts do not have t o be designed t o meet
maxi m u m peak c u rrent.
lec
A Q B - L F 1 00 fused Navy
circuit breaker
Note: AQB-LF100 breakers are sold for
replacement only. They are no longer on
Navy Qualified Product List.
an
L i k e sta ndard N avy breakers, they a r e d e ­
sig ned f o r u s e i n switc h boards, l oad centers
and panelboards.
AOB- LF circuit breakers are available in
t h ree-pole desi g n and for rear con nection
o n l y.
tM
A Q B - L F1 00 a n d A Q B - L F250 B reakers
A p p l i cat i o n
AQ B - LF 1 0 0 a n d AO B - LF250 circuit break­
ers are for use in low vo ltage distribution
systems where avai lable fault c u rrent ex­
ceed the i nterru pti ng ratings of standard
m o lded case breakers but does not exceed
1 00,000 a m peres.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Type AOB- L F 1 00, 1 00 A m peres Maximum,
Type AO B - L F250, 250 Am peres Maximum,
500 Volts Ac, 1 00,000 Am peres I . C .
Page 35
Fuse Plug - I n
Co ntacts
Fuse Housing
U n it Removed
Cu rrent Limiting
Fuses
Page 36
A O B - LF1 00 Fused B reaker Specificatio n : M l L - C - 1 7361
1 5-1 00 Amps. 500 Volts Ac, 60 Cycles. T h ree- Pole. I nterrupting Rating: 1 00,000 A m peres
Note: AQB-LF100 breakers are sold for replacement only. They are no longer on Navy
Qualified Product List.
.c
om
8
Tech n ica l Data
29-220
List Prices See Price List 29-020
l nstantaneous
Trip Setting
i n Amps
L(M,�
Breaker Complete
Breaker FrameCD
Trip U nit
Style
N u m be r ®
Style
Number
National
Stock No.
Style
N u mber
Thre e - P o l e 500 Volts Ac
Fuses
National
Stock N o .
an
Cont.
Amp.
Rating
ua
ls
A O B - L F 1 00 breakers are desig ned for the same a ppl ication as the AQB-A1 00 ( n o n -fused)
circuit breaker except that they may be applied on circuits w here fault cu rrents up to
1 00,000 amps are ava i lable. Breakers desig nated by the suffix " O F" in the table have settings
designed for the protection of feeder circu its and those fo l l owed by " D " have higher mag­
netic settings to a l low for motor starti n g .
Style
N u m be r ®
Quant.
R eq .
4 5 2 D 385 G 1 3
452D384 G 1 3
5925-00-849-8481
5925-00-65 5 - 1 1 56
31 3C743H02
31 3C743H02
3
3
4 5 2 D385 G 1 5
452D384 G 1 5
5925-00-65 5 - 1 1 57
5925-00-655 - 1 1 58
3 1 3C743H02
3 1 3C743H02
3
3
5925-00-6 1 7-831 2
5925-00-61 7 - 831 2
452D385 G 1 7
4 5 2 D 384G 1 7
5925-00-65 5 - 1 1 59
5925-00 - 65 5 - 1 1 60
31 3C743H03
3 1 3C743H03
3
3
452D390G02
4 5 2 D 390G02
5925-00-6 1 7 -831 2
5925-00-61 7 - 831 2
452D385G20
4 5 2 D 384G20
5925-00-65 5 - 1 1 61
5925-00-65 5 - 1 1 62
3 1 3C743H03
31 3C743H03
3
3
4 5 2 D 390G02
4 5 2 D 3 90G02
5925-00-61 7-831 2
5925-00 -61 7 - 831 2
452D385G23
4 5 2 D384G23
5925-00-65 5 - 1 1 63
5925-00-65 5 - 1 1 64
3 1 3C743H03
3 1 3C743H03
3
3
90
1 80
1 05
21 0
4 5 2 D391 G 1 6
4 5 2 D 391 G 1 7
452D390G02
4 5 2 D390G02
5925-00-61 7 - 831 2
5925-00-61 7 - 83 1 2
25-DF
25-D
1 80
300
21 0
350
452D391 G 1 8
452D391 G 1 9
452D390G02
452D390G02
5925-00-61 7-831 2
5925-00-61 7-831 2
50 - D F
50-D
300
600
350
700
4 5 2 D391 G20
4 5 2 D 391 G 2 1
4 5 2 D 390G02
452D390G02
75-DF
75-D
450
525
900 1 050
452D391 G 22
452D391 G23
1 00 - D F
1 00 - D
600
700
1 200 1 400
4 5 2 D391 G 24
4 5 2 D 391 G 2 5
ar
tM
1 5- D F
1 5- D
CD Breaker frame consists of frame with its fuse housing unit and slip type connectors for back connection. but
lP
does not include trip unit. fuses or mounting blocks. Order these separately. trip units and fuses from table
above and mounting blocks from listings below.
® National stock n u m ber not assigned.
Description
One Stud Assembly Complete with 4 Nuts
Terminal M o u nting Block (No Studs)
Mounting Block and Stud Set (3 Studs)
ca
Switc h boa rd M o u nt i n g
Breaker frame i n c l udes mounting hardware. Female slip connectors are mou nted on the
rear for plugging onto stud projections of term i n a l mou nting block assemblies. Order one
for each end of the breaker.
Style Number
National Stock No.
1 631 442
1 764 240
301 P272G01
5940-00-50 1 -91 20
tri
Additions
I n d iv i d u a l R e p roductions: When req u i red, reproducti ons of master drawings, outl i n e
drawi ngs and certification sheets can be ordered as fol lows :
Description
1
2
3
4
Full size photolithic tracing of master drawing on vel l u m
Outline a n d d r i l l i n g plan on v e l l u m
Certification data o n v e l l u m
Reproduction of i t e m s 1 , 2 o r 3
lec
Item
F u s e H o u s i n g U n it ( N o F uses)
Style N umber
National Stock No.
31 3C742G01
6605-00-799-3521
N et Weig ht - Lbs.
AQB B reaker Complete 3 - Pole
AQB Breaker Frame Only Complete
with Fuse U n it Assembly
Without Fuses
Tri p U n it 3 - Pole
Fuse U n it Assembly Without Fuses
One M o u nting B l ock with 3 Studs
C u rrent Limiting Fuse
C i rcuit B reaker Handle
Locking Device
1 3.62
9.68
2.62
1 .6 2
1 .62
.45
.25
.E
D ra w i n g s Ava i lable: Master drawing 900J377; outlin e drilling p l a n and wiring d i agram:
451 0 7 1 1 .
H a n d l e Lock ( Fo r S h i p board M a i ntenance Use O n l y ) : Order style n u m ber 1 6 1 4 485.
F u n g u s - M o i st u re - R esistant Treatments ( J A N -T-1 52; J A N - C - 1 73 o r M I L- V - 1 73 ) :
If specified, contact Westi ng house. External parts are coated; trip u n its are not treated.
ww
w
Tec h n i c a l M a n u a l : NAVS H I PS n u mber 362 - 2 1 66. This booklet per M I L- M - 1 5071 . When
required, order B V R -T M -380.
Westinghouse E l ectric Corporation
Distribution and Control B u s i n es s Unit
E lectrical Components Division
Pitts b u rg h, Pen nsylva n i a , U . S.A. 1 5220
April 1 991
Tec h n i ca l Data
29-220
Page 37
A Q B - LF250 F u s e d B reaker Specification : M l L- C - 1 7361
on circu its with available fault cu rrents up to
1 00,000 a m ps. O n ly three - pole breakers
are avail able.
These fused breakers are designed for appli­
cations similar to those for AQB -A250
( n on -fused ) . H owever, because of their
current limiting fuses, they can be appl ied
U n dervoltage release devices, shunt trips
and/or auxiliary switches are available for
the AO B - L F250 and can be easily installed
i n the field.
B reaker Com plete
Breaker FrameCD
Style
N u mber
Style
N u mber
tM
List Prices See Price List 29-020
Low
Those breakers identified by the suffix " L M "
i n t h e price table have higher magnetic set­
tings for motor starting while those carrying
the suffix " L" are set for the protecti on of
feeder circuits.
an
1 25-250 A m ps • 500 Volts Ac,
60 Cycles • T h ree- Pole
I nterrupting R at i n g : 1 00,000 Am peres
I nstan­
taneous
Trip Setting
i n Amps
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Type AO B - LF1 00, 1 00 Amperes Maximum
Type AOB - L F250, 250 Amperes M aximum
500 Volts Ac, 1 00,000 Amperes I . C .
April 1 991
S u persedes Tec h n i ca l Data 29-220,
pages 35-36, dated October 1 978
Mailed to: E, C/29-200A
Cont.
Amp.
Rating
.c
om
8
Westinghouse Electric Corporation
Distri bution a n d Control Busi ness Unit
E l ectrical Compo nents Division
Pittsburgh, Pennsylvania, U . S .A. 1 5220
Tri p U n i t
Style
N u mber
National
Stock N o .
High
Fuses
National
Stock No.
Style
Number®
Quant.
Req.
ar
Th ree- Pole 500 Volts Ac ( R efer to West i n g h ouse for Two-Pole Styles and Prices)
6 5 0 1 300
1 500 3000
31 3C748G 1 8
3 1 3C748G 1 9
4520820G02
4520820G02
5925-00-61 7 - 831 3
5925-00-61 7 - 831 3
4520821 G 1 8
4520821 G 1 9
5925-00-65 5 - 1 1 65
5925-00-655 - 1 1 66
3 1 3C743H04
3 1 3C743H04
3
3
1 50 - L
1 50 - L M
6 5 0 1 300
1 500 3000
3 1 3C748G20
31 3C748G21
4520820G02
4520820G02
5925-00 - 6 1 7 -831 3
5925-00-61 7 - 83 1 3
4520821 G20
4520821 G 2 1
5925-00-655 - 1 1 67
5925-00-65 5 - 1 1 68
3 1 3C743H04
3 1 3C743H04
3
3
1 75-L
1 75 - LM
6 5 0 1 300
1 500 3000
3 1 3C748G22
3 1 3C748G23
4 5 2 0820G02
4 5 2 0820G02
5925-00-61 7 - 831 3
5925-00-61 7 - 831 3
4 5 2 0821 G22
4520821 G23
5925-00-65 5 - 1 1 69
5925-00-65 5 - 1 1 70
3 1 3C743H04
3 1 3C743H04
3
3
225-L
225- L M
650 1 300
1 500 3000
3 1 3C748G24
3 1 3C748G25
4520820G02
4 5 2 0 820G02
5925-00-61 7 -831 3
5925-00 - 61 7 -831 3
4520821 G24
4520821 G25
5925-00-655 - 1 1 7 1
5925-00-65 5 - 1 1 72
3 1 3C743H04
3 1 3C743H04
3
3
250 - L
250-LM
6 5 0 1 300
1 500 3000
31 3C748G26
3 1 3C748G27
Net Wt. 32.00 Lbs.
ca
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1 25 - L
1 25 - L M
4520820G02 5925-00-61 7 - 831 3
4520820G02 5923-00-61 7 - 831 3
Net Wt. 24.50 Lbs.
4520821 G26 5925-00-655- 1 1 74
4520821 G27 5925-00-655 - 1 1 73
Net Wt. 3.00 Lbs.
3
31 3C743H04
3
31 3C743H04
Net Wt. 1 .50 Lbs.
CD Breaker frame consists of frame with its fuse housing unit and slip type connector for back connection, but does not include trip unit, fuses o r mounting blocks.
Order these separately, trip u n its from table above and mounting blocks from listi n g s below.
tri
® National stock n u m be r H5925-00-624-3049.
Switch board M o u n t i n g
Breaker frame i ncludes mou nti ng hardware. Female slip conn ectors a r e mounted o n t h e
rear f o r p l u g g i n g onto stud projections o f terminal mounting block assemblies. Order o n e
f o r e a c h e n d o f breaker.
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Styl e
N u mb er
Description
One Stud Assembly Complete with 4 Nuts
Terminal Mounting Block ( N o Studs)
Mounting Block and Stud Set (3 Studs)@
@ Net Weight 3.00 Lbs.
1 63 1 443
3 1 3C68 1 G 0 1
3 1 3 C680G02
I
I
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National
Stock No.
940-00-501 -91 1 9
I t em
1
2
Description
Full size photolithic tracing of master drawing on v e l l u m
O u t l i n e a n d drill i n g plan on v e l l u m
Certification d a t a on vellum
Reproduction of items 1, 2 o r 3
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3
4
.E
A d d it i o n s
I n d iv i d u a l Reproductions: When req uired, reproductions of master drawings, outline
drawings, and certification sheets can be ordered at the following prices:
D rawings Ava i l a b l e : Master drawing 900- J - 379; breaker outli ne, drilling and wiring
diagram 451 D250.
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H a nd l e Lock ( Fo r s h i pboard m a i ntenance use o n l y ) : Order style n u mber 1 720 1 01 .
N et weight . 1 0 lbs.
Auxiliary Switch : For description see AOB-A250 breaker, page 31 . Style n u m be r 452D379G02
same as for AOB-A250. Net weight . 1 7 l bs .
Shunt Trip Attachment: T o o rd e r refer to AQB-A250 breaker o n page 31 . S t y l e n u m be rs
and net prices a re s a m e as those for AQB-A250. Net weight .70 l bs .
Undervoltage Device: T o order, refer to AQB­
A250 breaker on page 3 1 . Style n u m be rs
a n d n et prices a re s a m e as those for AQB­
A250. Net weight 1 . 1 2 l bs.
Tec h n i ca l M a n u a l : NAVS H I PS n u mber
362- 2 1 65. This booklet per M I L- M - 1 5071 .
When req uired, order B V R -T M - 3 8 1 .
Fuse H o u s i n g U n i t ( N o F u ses)
Style
N umber
452D83 2 G 0 1
National
Stock No.
Net
Weight
4.50 Lbs.
O rd e r i n g I n formatio n : See page 4.
Net Weig hts : See l istings in tables and
additions.
.c
om
Tech nical Data
29-220
Page 38
O u t l i n e D i mensions A O B - L F 1 00 Breakers
ua
ls
Support blocks are nat s u p plied
with b reaker, but must b e ordered
separately, refer to dwg . I A 4 45 7
all ports n e c e s s a r y to convert a
b r e a ker are i nclu ded
5
8
an
S l i p C o ntact Asse m b l y
Flat washers, lock washers and nuts
supplied with terminal m ig. black
tM
� - 2 0 Mtg
screws
(capt i vel
Front Cover C utout
ar
Drilling Plan
For Mou nting Panel (Rear Connected)
3 Megger holes
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9
i6- R Mrn.
Re move ble fuse
b�
ly
u nit asse m,�
- �
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q[a"J_] Re movab le
Llil - Mini m u m
s l ot
C i rcuit B reaker H a n d l e Lock i n g Device
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W i r i n g D i a g ra m
Wiring as Shown is for a 3 Pole
Breaker For 2 Pole Breaker Omit
M iddle Pole
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9
.
16- R.Mrn.
load End
Reverse position of lock to prevent
breaker f ro m opening
( Not supplied with
circuit breaker)
trip unit
load End
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AOB B reaker with Over- C u rrent,
S h o rt C i rcuit Trip and Fuses
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Westi nghouse E l ectric Corporation
Distribution and Control Bu si ness U n i t
Electrical Com ponents Division
Pittsburgh, Pennsylva nia, U . S.A. 1 5220
April 1 991
.c
om
Westinghouse Electric Corporation
Distribution a n d Contro l Busi ness U n it
E l ectrical Components Division
Pittsburg h , Pen nsylva n i a , U . S .A. 1 5220
O u t l i n e D i mensions A Q B - LF250 Breakers
Warning ,
nomeplo te
09B Oia. hole
1 n handle
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����
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
l
Page 39
Support b l o c k s ore not supplied
wdh b r e a k e r , but must b e
o r d e r e d s e p a r te l y r e f e r to
d w g 31 3C680. a l l p o r t s
n e c e s s a r y to c o n ve r t a b k r
ore mcluded
Line E n d
Frome
na m e p a te
29-220
ua
ls
Types AQB - L F 1 0 0 , 1 00 Amperes Maximum,
Types AQ B - L F250, 250 Am peres Maximum
500 Volts Ac, 1 00, 0 0 0 Amperes I . C.
April 1 99 1
Su persedes Technical Data 29-220,
pages 37-38, dated October 1 978
M a i led to: E , C/29-200A
Technical Data
4 Nutsond
r-----.+-- su p p l i e d
ar
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I washers
w• lh s t u d
Load E n d
D r i l l i ng Plans
For Terminal Mounting B l ocks
Flat woshers . l ockwoshers
mounting blocks
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and nuts supplied w i t h t e r m i nal
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Front Sheet D r i l l i ng Template
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Ty pical Wiring Diagrams
Wiring as Shown for 3 Pole Breaker
For 2 Pole Breaker Omit M iddle Pole
Removable
tr�p u n i t
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A Q B Breaker with
over cur rent , short
Removable
ci
fuse unit a ss y· '---+"""'---"':...,__j r c u i t t n p and f uses
f�
�
L.H.Side -
of breaker
'
13
Bottom ot
mig block
o f breaker
Bottom of breaker
It Oio.
6 holes
Load End
H a n d l e lock i n g Device
( N ot Supplied With Circuit Breaker)
When U nder-Voltage
Release is Provided
�
When Shunt Trip
and Auxiliary
. P rov1. d d
. h IS
S wrtc
A and B au•.
swi tch 3
18" lon9
leads
l YA YA
od s 1 8 "
2 l�
e�
Shunt t r i p
l o ng
Note:
The a u x . s w i t c h m u s t be u s e d w i t h e a c h
shunt t r i p, connect one side of shunt t r i p
i n sertes w i t h "A" contact {closed when
breaker i s c losed ) of a u x . s w i t c h when
connectrng to power supply.
.c
om
Tech nical Data
29-220
Page 40
C h aract e r i s t i c T r i p p i n g C u rves
50
30
20
\
�
5
4
3
2
l l\
I : t�
I
5
4
3
2
03
.02
0I
100
30 0
600
N
1 200
1\ \
500
400
300
200
100
'\�
50
40
30
20
l\
5
4
3
2
r--2 2 5 Amp r250 Amp
. r---
1 2 5 Amp.
r--r-
�
"0
"
"'
Ul
8
\\'
��·�
30000
10000
100000
H
"'
E
,::
05
0I
3.5
3.0
2.5
2.0
II
7 5 Amp
1.5
50 Amp.
2 5 Amp.
*
�
1 5 Amp.
�
1.0
v
,...
-
0.5
0
o
Ambient Temperature, OC
10
20
30
40
50
60
70
80
90 100
II
I
.03
02
I
100 Amp.
\ �
:: \ \
uu
'\ .l.
II 1\ \' \
IH
" �\ �
� 1\\ .\
\
r ��\\
II
5
4
3
2
I
1
I�
I
1 7 5 Amp
150 Amp
11 1 1 I I
-"
Operating Characteristics
T h e r m a l Maonetics and
Current Lim1ting Fuse
50° A m b i e n t - Cold Start Ac
-- Instantaneous Tr i p a t
1 2 0 0 to 1 4 0 0 % Ra t i n g
- - Instantan eous Tri p at
600 to 70 0 % Ratmg
100
300
600
1200
Percent Rated Current
3000
30000
100000
10000
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tri
Percent Rated C u r r e n t
1\
1000
Tri p p i n g
Ti me
2 5 Secands! 25%
Less T h a n 1 Hour
More Than 1 Hour
600
225
1 30
10
� �
� \\
3000
Perc ent of Tnp
Element Roling
.E
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Westingho u se E l ectric Corporation
Distribution and Contro l B u s i n es s U n it
E l ectrical Components Division
Pittsburgh, Pen n sylva nia, U . S.A. 1 5220
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,::
�
05
\
�
V
\
w
"'
(f)
I
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A Q B - L F I OO
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I
5000
4000
3000
2000
- - - 1 5 0 0 to 3000 A m p.
See Table For Instantaneous
Range of Other Tr i p Uni t
, \
10
Tr i pping
T1me
Operating Characteristics
Thermal Magnetic and Current
Li m i t i n g Fuse 5 0 ° C Ambient
Cold Start Ac Instantaneous
Tr i p Range of 2 5 0 Amp. Tr i p
U n i t Shown
650 to 1 3 0 0 Amp.
�
40
10000
I
an
1 00
I
tM
l\
500
400
300
200
I
25 Seconds + 2 5 %
Less Than I Hour
More Than 1 Hour
600
225
1 30
1 000
8
I I
ar
5000
4000
3000
2000
�
"0
�� /�
Per n
f Tr i p
E l e m e n t Rating
lP
A Q B - L F 250
10000
To determine the trip unit rating to be used,
when the l oad cu rrent and ambient are
known, m u ltiply the load c u rrent by the
factor obtained from the c urve below for the
known ambient. The result will be the ideal
trip unit rating. H owever, since trip u n its are
furnished only with standard rati ngs as per
Navy spec., select the standard unit trip
whose rating i s equal to or one rating
hig her than the ideal rati ng.
ua
ls
A 0 B - L F 1 00 B reakers
A O B - L F250 B reakers
April 1 991
.c
om
Tech nical Data
Westinghouse Electric Corporation
Distribution and Control B u s i n ess U n it
E lectrical Com ponents Division
Pittsb u rg h , Pennsylva n i a , U . S.A. 1 5220
Types AQB-L4000F, AOB-L4000M ;
1 50,000 Amperes I.C. a n d
AQB-LL400QS; 1 00,000 Am peres I . C .
250-400 Amperes; 500 Volts 60 Hz Ac
Page 41
AB DE-ION®
Circuit Breakers for
Shipboard Use
ua
ls
April 1 99 1
New I nformati o n
Mai led to : E , C/29-200A
29-220
an
Description
The Navy Type AQB-L4000F, AQB-L4000M,
and AOB-LL400QS m o l ded case ci rcu it
breakers a re 500 Vac m a xi m u m rated
devices with electronic trip u n its rated at
400 a m peres m a x i m u m conti n u o u s cu rrent
at 60 Hz. The ci rcu it breakers are assembled
as 3-pole u n its which may be used as 2- or
3-pole devices.
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The c i rcuit breakers a re designed to M I L-C1 7361 and meet the req u i re ments of Class
HI-shock, M I L-S-90 1 . The c i rc u it breaker
electronic trip u n it has adj u stable short
delay time a n d pick- u p trip sett i n g s which
can be read i l y changed at the operator level
to meet the s h i p bo a rd system trip req u i re­
ments. Four i nterchangeable rati ng-plugs
a re ava i l a b l e to sel ect the conti n u o u s cu r­
rent rating of 250, 300, 350 or 400 a m peres.
Also provided i s a non-adjusta b l e i nverse
time delay tripping action for ove rload co n­
ditions, and i n stantaneous tripping for pro­
tection against short circ u it conditions that
exceed the preset s h o rt delay pick-up set­
t i n g . In open a i r at 50°C, the c i rc u it breaker
will carry conti n uously a cu rrent eq u a l to
the a m pere rati ng of the i n sta l l ed rating
plug. The ca l i bration of the trip unit is
i n sensitive to a m bi ent tem peratures over a
range of - 20oc to + 70°C.
.E
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AQB-L400QF, AOB-L400QM a n d AOB­
LL400QS cu rrent l i m iting circ u it breakers are
desi g n ed for i n stallation i n switchboards for
protection of gen erators a n d feeders and
branch circu its with ava i l a b l e fault cu rrents
of 1 50,000 a m peres m a x i m u m .
Operation
The AQB-L400QF, AQB-L4000M , a n d AOB­
LL4000S cu rrent l i m it i n g c i rc u it breakers
(without the need for cu rrent l i m iting fuses)
a re desi g n ed to provide c i rc u it protection
for low voltage d i stribution systems. The
ci rcuit breakers will di scon nect a load from
a n electrical supply when the h a n d l e is
operated, when a n overcurrent o r s h o rt c i r-
250-400 Amperes, 500 Volts Ac, 60 Hz 3
Pole Only, 50°C Ambient
Protective Functions:
Short Delay Pick-up
(Adjustable)
AQB-L4000F
AQB-L4000M
AOB-LL4000S
Continuous Current Ratings:
350A
250A
400A
300A
Long Delay Pick-up (Minimum Thermal Trip)
(Fixed)
1 3 1 % to 1 56% (All Rati ngs)
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AQB- L4000F, AOB-L4000M a n d AOB­
LL4000S Current L i m iting Navy Circuit
Breakers
Current Interruption Ratings:
AQB-L4000F
1 50,000 Amperes
AQB-L4000M
1 50,000 Amperes
AOB-LL400QS
1 00,000 Amperes
650-1 500 Amps
1 700-3200 Amps
3600-5800 Amps
Instantaneous Pick-up (Fixed)
2850 Amps
AOB-L4000F
3280 Amps
AQB-L4000M
6300 Amps
AOB-LL4000S
Motor Operator Mounted on Circuit Breaker
cuit condition develops, or when the push­
to-trip button i n the trip u n it i s m a n u a l l y
pressed. A complete breaker consists of a
breaker, rat i n g p l u g p l u s mounting base a n d
is ava i l a b l e w i t h n u merous attach ments
such as e l ectrical operator, s h u nt trip,
u n dervoltage release a n d a u x i l i a ry switches
to perform varied a u x i l i a r y fu nctions.
The c i rcuit breaker has a spri ng-loaded
i n dependent over-togg l e operating mech­
anism that provides q u ick-make q u i ck-break
trip free operati o n .
T h e operating mech a n i s m a l so provides t h e
electro-mec h a n ical m e a n s t o o p e n the con­
tacts when trip conditions occur. When c u r­
rent is flowing through the contacts of the
circuit breaker, the positions of the lower
contact arms and the moving contact arms
i nduce opposing m a g netic fields. The result­
ing opposi ng forces a l o n g the m a g netic fl u x
l i nes cause rapid contact blow-a p a rt u n d e r
h i g h cu rrent fault co nditions. The AQB­
L400QF and AQB-L400QM ci rcuit breakers
have s l ot motors for each moving contact
a rm to intens ify the mag netic field a n d f u r­
ther i ncrease the blow-a part effect.
.c
om
Technical Data
29-220
Page 42
This enables these circuit breakers to have
an i nterrupti ng rating of 1 50 kA compared
with the AQB-LL400QS rating of 1 00 kA.
the trip u n it i n itiates a trip after the sel ected
s h o rt delay time sett i n g .
\
\
List Prices See Price List 29-020
Type
Breaker
Circuit Breaker, Navy Type
(Supplied with male plug-in
adapters installed for rear
connection)
AOB-LL4000S Circuit Breaker
AOB-L4000F Circuit Breaker
AOB-L4000M Circuit Breaker
Magnetic Field With Slot Motor
1 230C84G01
1 230C84G02
1 230C84G03
1 230C84G04
Type
Motor Operator 1 1 5 V Ac
Motor Operator 450/1 1 5 V Ac
Westinghouse
Style N umber
1 234C53G01
1 234C53G03
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ar
A push-to-trip button is provided to m a n ­
u a l l y trip the ci rcuit b reaker. When the but­
ton is pressed, a p l u nger rotates the latch
lever causing the c i rc u it breaker to trip.
All trip u n its are b u i lt i nto the c i rc u it breaker
fra mes and use e l ectro n i c sensing e l e ments.
The Type AQB-L400QF, AOB-L4000M, and
AOB-LL400QS Seltron ic@l trip u n its provide
protection functi ons. All trip u n its a re s u p­
plied e l ectrica l l y from cu rrent sensors
mou nted on the m a i n cond uctors in the c i r­
cuit breaker base. A field-installed rating
plug determ i nes the conti n u o u s a m pere rat­
i n g of the trip u n it. An e l ectrical i nterlock
causes the c i rc u it breaker to trip at cu rrent
leve l s of 75% o r m o re i f the rating plug is
not i nsta l led. U nder fa u l t conditions, the trip
unit w i l l i n itiate a trip signal and en ergize
the flux shunt trip. When the flux s h u nt trip
operates, a p l u nger extends and rotates the
trip lever. As the trip lever rotates, the latch
lever rotates which u n latches the trigger
a n d the c i rc u it breaker trips.
1 230C83G01
1 230C83G02
1 230C83G03
tM
Rating Plug
2500 Rating Plug, 250 Amps
3000 Rating Plug, 300 Amps
3500 Rating Plug, 350 Amps
4000 Rating Plug, 400 Amps
Westinghouse
Style Number
an
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ls
Instantaneous Trip F o r short ci rcuit condi­
tions that exceed the i n sta nta neous (over­
ride) pick-u p value, but not the current­
l i m iting t h res h o l d ( F i g u res 2-3 through 2-14)
the trip unit i n itiates a trip with n o i nten­
tional delay.
Motor Operator
The motor operator is designed to remote l y
switch a ci rcuit breaker to i t s O N , O F F a n d
relatch positions. The relatch function w i l l
occur automatically after a c i rc u it breaker
trip operati o n . The m otor operato r i s self­
conta i ned and assem bled in its own m o u nt­
i ng fra m e which mou nts on t h e front of the
ci rcuit breaker. W h e n the O N o r OFF remote
control button is pressed, cu rrent flows to
the e l ectric moto r which turns a b a l l bea r i n g
and screw assem b l y d riving the c a r r i e r a n d
r o l l e r assembly. Two rol l e rs f i t over the c i r­
cuit breaker h a n d l e a n d m ove with the h a n ­
d l e through i t s r a n g e of moveme nt. Limit
switches control the travel of the carrier
assembly. A term i n a l block is provided in
t h e m o u nting frame for contro l connecti o n s .
.E
Overload Trip The trip u n it i n itiates a n u lti­
mate trip of the ci rcuit breaker wit h i n one
h o u r for a n ove rload of 1 3 1 % to 1 56%, a n d
i n l e s s time f o r h i g h e r ove rloads.
Short Delay Trip For s h o rt ci rcuit conditions
that exceed the s h o rt delay pick-up setting
but not the i n stantaneous (override) pick-up,
Circuit Breakers, Navy Type, AQB-L400QF, AQB-L400QM, and AQB-LL400QS and Motor Operator
ww
w
Westingh ouse E l ectric Corporation
Distri bution and Control Busi ness U n it
E l ectrical Com ponents Division
Pitts b u rg h , Pennsylva n i a , U . S .A. 1 5220
April 1 99 1
.c
om
Technical Data
Westinghouse Electric Corporation
Distribution a n d Control Business Unit
E l ectrical Components Division
Pittsburgh, Pennsylva nia, U . S.A. 1 5220
April 1 99 1
N e w I nformati o n
M a i led to: E, C/29-200A
Mounting Block
Type
Westinghouse
Style Number
1 230C83G 1 5
Switchboard Mounting
Breaker fra me incl udes mounting h a rdware.
Stud projections a re mou nted o n the rea r of
the breaker for p l u g g i n g i nto fe m a l e s l i p
co n nectors of ter m i n a l mou nting b l ock
asse m blies.
1 230C83G16
Handle Lock ( Fo r s h i pboard m a i ntena nce
use o n l y ) order style n u m be r 1 720 1 0 1 .
Mounting Block, Molded Base
Only
(For mounting a front connected circuit breaker, or as a
replacement part)
1 230C81 G05
AOB-L4000F with 1 1 5 V Ac
Undervoltage Release
Mechanism
Male Slip Connectors
(Replacement part, three per
kit)
1 230C81 G04
AOB-L4000F with 1 20 V De
Undervoltage Release
Mechanism
1 230C83G17
Front Connected Terminal
(Required three per line or
load end)
504C497G01
AQB-L4000F with 250 V De
Undervoltage Release
Mechanism
1 230C83G 1 8
AOB-L4000M with 1 1 5 V Ac
Undervoltage Release
Mechanism
1 230C83G 1 9
AOB-L4000M with 450 V Ac*
Undervoltage Release
Mechanism
1 230C83G20
AOB-L4000M with 1 20 V De
Undervoltage Release
Mechanism
1 230C83G21
AQB-L4000M with 250 V De
Undervoltage Release
Mechanism
1 230C83G22
AOB-L4000S with 1 1 5 V Ac
Undervoltage Release
Mechanism
1 230C83G 1 1
AQB-L4000S with 450 V Ac*
Undervoltage Release
Mechanism
1 230C83G 1 2
1 230C83G 1 3
1220C86G08
AQB-L4000S with 1 20 V De
Undervoltage Release
Mechanism
1 220C86G09
AOB-L4000S with 250 V De
Undervoltage Release
Mechanism
1 230C83G14
1 220C86G01
1 220C86G02
1220C86G05
1 220C86G06
1 220C86G07
Shunt Trip
Type
1 220C86G03
1 220C86G04
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Combination Shunt T r i p and
1 a/1b Auxiliary Switch (LeftPole Only)
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Westinghouse
Style N u m ber
Shunt Trip (Left-Pole only)
(Includes built-in cutoff switch)
1 1 5 V Ac/28 to 1 20 V De
450 V Ac Only
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1 1 5 V Ac/28-1 20 V De Shunt
Trip and 1 1 5-450 V Ac Auxiliary Switch
1 1 5 V Ac/28-1 20 V De Shunt
Trip and 1 20 V De Auxiliary
Switch
450 V Ac Shunt Trip and
1 1 5-450 V Ac Auxiliary Switch
450 V Ac Shunt Trip and 1 20 V
De Auxiliary Switch
ar
Auxiliary Switch
1 a/1b 1 1 5-450 V Ac
2a/2b 1 1 5-450 V Ac
1 a/1b 1 20 V De
2a/2b 1 20 V De
1 a/1b 1 1 5-450 V Ac and 1 a/1 b
120 V De Combination
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Westinghouse
Style Number
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Type
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AOB-L4000F with 450 V Ac*
Undervoltage Release
Mechanism
1 220C86G 1 0
1 220C86G1 1
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Type
Auxiliary Switches
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Undervoltage Release ( Left-Pole Only)
UVR and Circuit Breaker m ust be ordered as
a n i nteg ral u n it
Westi nghouse
Style Number
1 230C81 G01
Plug-in Mounting B lock, Rear
Connected, Complete
(Required one per load or l i ne
end)
Page 43
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Types AQB-L4000F, AQB-L4000M ;
1 50,000 Amperes I.C. a n d
AQB-LL4000 S ; 1 00,000 Am peres I . C .
250-400 Amperes; 500 Volts 60 Hz Ac
29-220
Fungus - Moisture - Resistance Treatments: (JAN-T- 1 52; JAN-C- 1 73; M I L-V- 1 73)
If specified contact Westing house. Exte rnal
parts are coated.
Technical Manual : When req u i red order
1 240C33H 0 1 .
Portable Test Kit - Can b e used t o functiona l ly test the breaker for overload and s h o rt
circuit, w h i l e breaker is m o u nted. When
req u i red order catalog n u mber STK2.
Individual Reproduction : When req u i red
reproduction of outl i n e d rawings and certification sh eets can be ordered a s follows:
Item
1
2
3
Description
Outline drawing and dril ling plan on vellum
Certification data on vellum
Reproduction of items 1 and 2
Repair Parts:
Net Weight:
*Using externally-mounted step-down transformer
supplied
Item
Circuit Breaker
Motor Operator
Mounting Block
Front Connected Terminals (Set
of Three)
Portable Test Kit
Weight
30 lbs.
22 lbs.
1 0 lbs.
1 lb.- 1 0% ozs.
12 lb.-14%
ozs.
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Tech nical Data
29-220
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Page 44
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Westi n g h o use E l ectric Corporation
Distribution and Contro l Busi ness U n it
E l ectrical Compon ents Division
Pittsbu rg h , Penn sylv a n i a , U .S .A . 1 5220
April 1 99 1
April 1 99 1
New Information
M a i led to : E, C/29-200A
•
•
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Navy Type AQB-L4000F
Circuit Breaker
: .
"'
Rating Plug: 3000
ar
tM
Rating Plug: 2500
Curve Tolerance Applies
Over Temperature Range of
- 20 De g. C. to + 70 Deg. C.
Page 45
an
Navy Type AOB-L400QF
Circuit Breaker
29-220
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Types AOB-L400QF, AQB- L4000M ;
1 50,000 Amperes I.C. a n d
AOB-LL4000S; 1 00,000 Am peres I .C .
250-400 Amperes; 500 Volts 6 0 Hz Ac
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Technical Data
Westinghouse Electric Corporation
Distribution and Control B u si n ess U n it
E l ectrical Compon ents Division
Pittsburgh, Pennsylva n i a , U . S.A. 1 5220
· - · --- -
lP
- l l
Short Deldv Pwk Up - � � .
-- f
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Hc-,......J+�,-c__,-,_,-,..,. 1650 AI low S<ettlrHj
��__,-c-t',..,..,.,... 1 1 500 A1 H1qh Sett,ng
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Time-Current Curves for AOB-LL4000S Circuit Breaker with 250 Ampere
Rating Plug
Time-Current Curves for AOB-LL400QS Circuit Breaker with 300 Ampere
Rating Plug
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Tec h n ical Data
29-220
Page 46
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
•
Mm,rnum Tr�p
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Over Temperature Range of
- 20 Deg. C. to + 70 Oeg. C.
'
·- - z
,
-� \u
Short Delay
ur ·
·
· � -E
· ·-
;;::
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-c-:-:-==- 1650 AI Low Senmg
�---cc-c��_,-,- l l � O O A i H 1 g h Se!t1r1g .
-�-
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·
C i rcuit Breaker
Rating Plug: 4000
Rating Plug: 3500
Curve Tolerance Applies
I;
Navy Type AOB-L4000F
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Short Delay T1me
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MAX
Time-Current Curves for AQB-LL400QS Circuit Breaker with 400 Ampere
Rating Plug
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Time-Current Curves for AQB-LL400QS Circuit Breaker with 350 Ampere
Rating Plug
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Westing house E lectric Corporation
Distribution a n d Control B u si n ess U n it
E l ectrical Com ponents Division
Pittsburgh, Pennsylva n i a , U . S .A. 1 5220
April 1 991
April 1 99 1
N e w Informati on
M a i led to: E, C/29-200A
•
•
tM
Rating Plug: 2500
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ICl
Navy Type AQB-L400QM
Circuit Breaker
Rating Plug: 3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
ar
Curve Tolerance Applies
Over Temperature Range of
- 20 De g. C. to + 70 Deg. C.
Page 47
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Navy Type AQB-L400QM
Circuit Breaker
29-220
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Types AQB-L4000F, AOB-L400QM ;
1 50,000 Amperes I . C . a n d
AOB-LL400QS; 1 00,000 Amperes I.C.
250-400 Amperes; 500 Volts 60 Hz Ac
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Technical Data
Westinghouse Electric Corporation
Distribution a n d Control B u s i n ess U n it
E l ectrical Compon ents Division
Pittsbu r g h , Pennsylva n i a , U . S.A. 1 5220
- ----
<
- -�-z
· - -,o
;
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Curren1 L 1 m lt1ng Threshold
·---- + t - +-� 1·1
=t=:-:=
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Time-Current Curves for AQB-L400QF Circuit Breaker with 250 Ampere
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Rating Plug
• --�
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• �-· t
•
D(Jl
•i�
i OD?
, ·
___
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Time-Current Curves for AQB-L400QF Circuit Breaker with 300 Ampere
Rating Plug
I
00
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Technical Data
29-220
Page 48
•
Navy Type AQB-L400QM
Circuit Breaker
c-
: JOOU >
Rating Plug: 3500
Navy Type AOB-L400QM
Circuit Breaker
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Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
�-
M1n
,
Sl1ort
'---+--r-:.:_:_;_:_:_;_ 1 1 700 A1
13200 AI
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P·rk Up · ---
.
Sf'tr1ng H1gh Sett1ng
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Curve Tolerance Applies
Over Temperature Range of
-20 Deg. C. to + 70 Deg. C.
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Time-Current Curves for AOB-l400QM Circuit Breaker with 400 Ampere
Rating Plug
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Time-Current Curves for AOB-l400QM Circuit Breaker with 350 Ampere
Rating Plug
OGI
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Westinghouse E l ectric Corpo ration
Distribution and Control B u si ness U n it
E lectrical Components Division
Pittsburgh, Pennsylva n i a , U .S.A. 1 5220
April 1 991
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8
Technical Data
Westinghouse Electric Corporation
Distri bution a n d Control B u s i n ess U n it
E l ectrical Com ponents Division
Pittsburgh, Pennsylvania, U .S.A. 1 5220
April 1 99 1
N e w I nfo rmation
M a i led to: E, C/29-200A
29-220
Page 49
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
•
•
tM
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Curve Tolerance Applies
Over Temperature Range of
- 20 Oeg. C. to + 70 Deg. C.
Navy Type AOB-l4000S
Circuit Breaker
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Navy Type AOB-l4000S
Circuit Breaker
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Types AQB-L400, AOB-LL400
500 Volts Ac
400 Amperes M ax i m u m , 1 50,000,
1 00,000 Amperes I . C . , Respectively
�
<
�
-Mm1rnu m
_
'>0 -
Tr�p
T1me__:
_ __ _
: : : : ::
Rating Plug: 3000
3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Oeg. C.
- -�--+ + - - ,
. ·
-+-
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:-
; ::::: ;
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Time-Current Curves for AOB-L4000M Circuit Breaker with 250 Ampere
Rating Plug
;;::
�---==--:___: ; : ;--- �
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"
:::::
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- --- -----�------>---+- -
'
Time-Current Curves for AOB-L4000M Circuit Breaker with 300 Ampere
Rating Plug
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Technical Data
29-220
Page 50
•
Navy Type AQB-L400QS
Circuit Breaker
Navy Type AGB-L400QS
Circuit Breaker
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•
Rating Plug: 4000
Rating Plug: 3500
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
-+
t
+-- · · · �-
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+-� �
____(_
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--+-------
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Curve Tolerance Applies
Over Temperature Range of
- 2 0 Deg. C. to + 70 Deg. C.
�
J, '
-�-
� --
---
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-- - · · · ·
+
---+ Short Delay T 1 m e - �- -
-+-------r--� .
: ��S:tt·,n:--�
- .;
m���
Time-Current Curves for AQB-L400QF Circuit Breaker with 400 Ampere
Rating Plug
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Time-Current Curves for AQB-L400QF Circuit Breaker with 350 Ampere
Rating Plug
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Westi nghouse E l ectric Corpo rati on
Distri bution a n d Control Business U n it
E l ectrical Compon ents Division
Pittsburgh, Pennsylva n i a , U .S.A. 1 5220
April 1 99 1
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Westinghouse Electric Corporation
Distribution a n d Control B u s i n ess U n it
E l ectrical Compon ents Division
Pittsburgh, Pen nsylvania, U . S.A. 1 5220
Apri l 1 99 1
New Information
M a i led to: E, C/29-200A
Tech n ical Data
29-220
Page 51
Types AOB-L400, AQB-LL400
500 Volts Ac
400 Am peres M a x i m u m , 1 50,000,
1 00,000 Amperes I . C., Respectively
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Outline Dimension AQB-L400, AQB-LL400
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
,.___ 6 1f16
4718 -.,.1 718
---- 4'116- II
.
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Automatic
Tripped
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51;. "']
�3'18
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I
-
r·,]
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IH---H+'ih
Front Surface
of Mounting
Panel
],I
'' II
Load
Dimensions i n I nches
*Conductor Height for Front
Connection
Center Line of
Circuit Breaker
Handle
29-220
Page 52
r------ 1 01/a
1.
1713116
Outline AQB-L400, AQB-LL400 with Motor Operator
1013116
1 1 '132
@
I
@
I
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16
.---
0
0
627132
�-
�(
@
Reset
8
8
��
Load End
Dimensions in Inches
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8
----
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Auto
Trip
-.-
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81116
@
Line End
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Technical Data
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Westinghouse E l ectric Corpo ration
Distribution and Control B u si n ess Unit
E l ectrical Components Division
Pittsburgh, Pennsylva n i a , U .S.A. 1 5220
April 1 991
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Cl
Tech n ical Data
Westinghouse Electric Corporation
Distri bution a n d Contro l B u s i n ess U n i t
E lectrical Components Division
Pittsbu rgh, Pennsylva n i a , U . S .A. 1 5220
Types AQB-L400, AQB-LL400
500 Volts Ac
400 Amperes M a x i m u m , 1 50,000,
1 00,000 Amperes I.C., Respectively
Wiring Diagrams
Front Sheet Template
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
1
I
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tM
<i Handle
Load
v
5.500
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1.625
lP
For 2 Pole Breakers
Use Two Outside Poles
� 1 .969
�[;:7-
. 1 88 R
-------l-�1
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7.000
3.500
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Drilling Plan for Mounting Panel
2
2.078 -
,.______ 6.0 1 6
.31 2 Dia.
Megger Holes
'-V
' .250 R
3.250
AQB Breaker
With Overcurrent and
Short Circuit Trip
Protection
/
5. 1 88
an
Line
Page 53
ua
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Apri l 1 99 1
New Information
M a i led to : E , C/29-200A
29-220
lec
1-+------ 1 7.000 --------.1
�------ 14.750 --------.;
.E
f+---- 9.562 -----.-+--
Line End
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.500 Dia. - 6 Holes
for .375 Mtg. Bolts
1 . 1 99 R
5.500
Load End
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Tech nical Data
29-220
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Page 54
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Westing house E l ectric Corporati o n
Distri bution a n d Control Busi ness U n it
E l ectrical Co m po n ents Division
Pittsburgh, Pen nsylva nia, U . S.A. 1 5220
April 1 99 1
.c
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Tec h n i ca l Data
Westinghouse Electric Corporation
Distribution a n d Control B u s i n ess U n it
E l ectrical Compo nents Division
Pitts burgh, Pennsylvania, U . S .A. 1 5220
Types A O B - A 1 6 0 1 , N O B -A 1 60 1
5 0 0 - 1 600 Am peres; 5 0 0 Volts, 60 H z Ac,
75,000 Amperes I . C.
Page 55
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
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April 1 99 1
Su persedes Tec h n ical Data 29-220,
pages 39-40, dated August 1 98 1 a n d
S u pplement to Technical Data 29-220,
page . 0 1 , dated May 1 4, 1 979
M a i led to : E, C/29-200A
29-220
A Q B -A1 601 a n d N Q B - A 1 601
N avy B reakers
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Note: AQB-A1601 are sold for replace­
ment only. They are no longer on the
Navy Qualified Products List.
I
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Continuous Instantaneous 1 Breaker Only, consists o f :
---�
Trip Setting
Ampere
Frame { I ncludes Stab s )
A-c Amperes
Rating
National
Style
Low
High
Stock
Number
N umber
Trip U n it
Style
Number
lec
Type
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List Prices See Price List 29-020
3 Pole, 500 Volts, 60 Cycles A-c
Trip u n its for these breakers have an adjust­
able instantaneous trip and are listed with
and without delayed instantaneous trip for
system coord i nation.
National
Stock
Number
N QB -A1 601 Breakers have a continuous
rating of 1 60 0 amperes. They are used only
as discon nects since they do not have an
automatic trip device.
Without Delayed Instantaneous Trip
2000
4000
2000
2000
2000
4000
4000
6000
1 2000
6000
6000
6000
1 2000
1 2000
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
.E
AQB 600X
AQB 600XM
AQB 800X
AQB 1 OOOX
AQB 1 200X
AQB 1 400X
AQB 1 600X
NOB 1 600
3720523G01
3720523G03
3720523G07
3720524G03
3720524G05
3720524G07
3720524G09
3720524G 1 0
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
. . . . .
.
. .
5925-00-406-61 3 1
With Delayed Instantaneous T r i p (XT1 - M i n . T i m e Delay .041 7 - .0458 Sec.)
AQB
AQB
AQB
AQB
AQB
500XT1
800XT1
1 000XT1
1 200XT1
1 600XT1
2000
2000
2000
2000
4000
6000
6000
6000
6000
1 2000
1
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
1
374021 1 G01
374021 1 G07
374021 2G03
374021 2G05
37402 12G09
. . .
. . . . .
5925-00-1 02-6086
5925-00-727-757 4
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With Delayed Instantaneous Trip (XT2 - Max. Time Delay .0708 - .0750 Sec.)
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AOB 500XT2
AQB 800XT2
AQB 1 200XT2
AQB 1 600XT2
2000
2000
2000
4000
6000
6000
6000
1 2000
3720522G02
3720522G02
3720522G02
3720522G02
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
3740221 G01
3740221 G07
3740222G05
3740222G09
A O B - A 1 60 1 circuit breakers are designed
for i n sta l l ation i n switchboards for protec­
tion of ge nerators and feeder and branch
circuits.
A complete breaker consists of a breaker plus
mounting base a nd is available with n u mer­
ous attachm ents such as electrical operator,
shunt trip, undervoltage release and auxil iary
switches to perform varied auxiliary func­
tions.
Complete Breaker
Breaker Only
500-1 600 A m peres, 500 Volts A - c, 60
Cycles O n ly, 3- Pole, 50°C A m b i e nt
I nterrupting R a t i n g : 75,000 A m ps. A - c
(Without D e layed I n sta ntaneous}
50.000 A m ps. A - c (With D elayed
I nsta nta neous}
S pecificat i o n : M I L- C -1 7361
Class : Hi S h ock M I L-S-901
V i b rat i o n : M I L - S T D - 1 67
M aterial and Workma n s h i p : M I L- E -91 7
5925-00-727-7555
5925-00-1 03-4248
Note : B reakers with rati ngs other than those
l i sted above are considered as special and
full descriptive data must be provided.
400 cyc l e b reakers are not ava i l a b l e .
Page 56
Mounting BaseCD
N et Wei g hts
Optional AdditionsCD
Description
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Shunt Trip @ : Mounts i n right pole only.
Has m o m entary rati ng only; coil leads m u st
be w i red in series with 1 A contact of a u x­
i l i a ry switch.
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Tec h n ical Data
29-220
Undervoltage Release @ : M o u nts i n right
pole only.
Electrical Operator, 1 1 5 Volt
Electrical O perator, 450 Volt
Shunt Trip
U ndervoltage Release
Auxil iary Switch
Cable Con nector
an
Auxiliary Switch: M o u nts i n left pol e only.
4 contacts, a ny co mbi nation of A's a n d B's,
(supplied as 2A a n d 2B u n l es s spec ified)
8 co ntacts, a ny combi nation of A's and B's,
(su ppl ied a s 4A a n d 4B u n l es s s pecified)
Breaker Only
AOB
NOB
Breaker Frame (AOB and N O B )
Trip U n it
AOB
NOB
Mounting Elase Only
For switchboard mounting. Inc ludes back
connectors for switch board bus and male
stabs to engage breaker. M atc hing stabs are
supplied with breaker frame.
Cable Con nector: M o u nts to bus con n ector
fo r cable co n nection. Each lug accepts four
cables, 600 M C M m a x . 1 l u g requi red per bus
connector.
Sty l e N u m be r : 505C706G03
1 51
1 48
1 28
23
20
75
27
35
%
1 Y..
1%
3
O rd e r i n g I nformation
When ordering Westingh ouse N avy circuit
breakers consult the check list below to
make sure you have provided correct infor­
mation. You should specify:
ar
Style N u mber: 373D307G02
tM
Automatic Reset Switch
For use with m otor operator w h e n an auto­
matic reset function is req u i red. Factory i n­
stalled only.
Weig ht,
Lbs.
1 . Quantity, West i n g h o use style n u m ­
b e r a n d N a t i o n a l stock n u m b e r of:
Fungus, Mo isture Resistant Treatment:
(a) B reaker frame and trip u n it.
(JAN-C- 1 73 or M I L-V- 1 7 3) : If specified, con­
( b ) M o u nting base.
tact West i ng h ouse. External parts are coated;
(c) Spare breakers or trip units. ( Usually
trip un its a re not treated.
one required for each ten u n its or
Drawings
fraction thereof of each current
rating.)
M a ster p l a n : 900J442
(d) I nstruction books.
S heet 1 o f 4 : Breaker Only and W i r i n g d i a­
grams
2. S h i pment
S h eet 2 o f 4 : Trip U n it, Curves and Attach­
Specify transportation mea ns, method of
ments
packaging and preservation and req uired
S h eet 3 of 4: M o u nt i ng Base and Cable
shipping date.
Conn ectors
S heet 4 of 4: Motor O p e rator
3 . D rawings
Specify quantity of outline or master plan
Individual Reproductions: When req u i red,
drawings required.
reproduct i on s of sheets 1 t h r u 4 of m a ster
plan 900J442 can be ordered as fol l ows:
4. Inspection
T y p e R e p roduction
I n d i cate whet h e r Government S o u rce
Vellum
inspection is req u i red at factory prior to
Prints (Paper)
shipment.
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Electrical OperatorCD
Technical Ma nua l : NAVS H I PS No. 0962-0 1 45000. This booklet per M I L- M - 1 507 1 . When
req u i red, order BVR-TM-576.
M ou nts to front of breaker for remote opera­
tion. 450 volt Ac rat i n g uti l izes a tra nsfo rmer
Dimensions: Pages 53, 54, 55.
i n conj u n ction with a 1 20 volt m otor. If auto­
matic reset is desired, order the ci rcuit
Characteristic Curves: Pages 56, 57.
breaker with optional Automatic Reset Switch
(See Optional Additions)
CD Can be field mounted.
w
Rating
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1 20 V A-c
450 V A-c
Style
Number
National
Stock
N u m be r
1 37 1 D38G06
1371 D38G08
None
Assi g n ed
® Breaker can be supplied with either shunt trip or
undervoltage release, but not both.
Westi nghouse E l ectric Corporation
Distribution a n d Control Business U n it
E lectrical Compo nents Division
Pittsburgh, Pen nsylva n i a , U . S .A. 1 5220
Apri1 1 991
Technical Data
.c
om
29-220
Westinghouse Electric Corporation
Distribution a n d Control Busi ness U n it
Electrical Components Division
Pitts b u rg h , Pennsy lv a n i a , U . S .A. 1 5220
Page 57
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Types AQB-A1 601 , N Q B - A1 601
500 - 1 600 Amperes; 500 Volts, 6 0 Hz. Ac.
75,000 Amperes I . C .
April 1 99 1
Su persedes Technical Data 29-220,
pages 41 -42, dated October 1 978
Mailed to: E, C/29-200A
AOB a n d N O B C i rcuit B reaker Frame O u t l i n e D i mensions
N O B-Same except for tnp u n it nameplate.
F ront Panel Cutout
an
<t of Breaker
Top End of Breaker
ar
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32
1-+----+- Removable
Handle
Extension Supplied
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Furnrshed wrth a l I
Breakers f o r Manual
Closmg and Opening
� Drameter 3 Megger Holes
When u ndervo ltage
release and auxil iary
switches are provided
�--
Wiring D i a g ra m s
-�---t----t----;
1��;S;- � ) ) :
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NOB
r Tt) \ c r) r) r
Line
L i ne
4"A"
,
r 1·. 1
1 1 1
ct1jJ ctjjJ
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Load
Sw•tches
1 6 Leads
18 Inches
,
'
L - - - - - - - - - - - - - '*
Long
Load
900J442
Sheet
)
���\
�
,
:
;_
�- - - - - - - - - - - - -
Reproduced From Drawing
d
'
'
1
of 4
__ _
--
_ _ _
-·
When shunt trip and
auxi l i a ry switch
are provided
-
'
\:_{._
_ _ _ _ _ _ _ _ _ _ _ _
,
1
;
-�
Sw1tches
2 Leads
18 Inches Long
=
\
,
: �: : . I�� J � lli l�"'
Long
Under voltage
Release
))
:��:·:���
� -r -r r- --
'
�:
e
18 ln h s
'
I
'
Lang
J"·
Note · The a u x i l i ary sw1tch must be used with each shunt trip. Con nect one
side of shunt trip in series with "A" contact (c losed when breaker is
c losed) of a u x i l i ary switch when connecting to power supply.
.c
om
Technical Data
29-220
Page 58
M o u nt i n g Base O u t l i ne D i mensions
an
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T o p View
1------ 12� ------i
Side View
� 010 8 Holes
( Mounting Bas e )
S w , t c h boord
Mountmg A n g l e
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14�
3
�-1 6 T a p 4 Holes
( Breaker Mou n t 1 n g )
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Load
Cutout
F ro n t Panel Cutout
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For Switchboard Back Panel
Reproduced From Drawing
<t_ of
Breaker
4
1
f
�
t
M o u nting Base
W1th cable connectors style 505C706G03
lug capacity-four 600 M C M cables per l u g
T o p End of Breaker
z!l/
32
f
Outl1ne of
Mou n t 1 n g
Base
900J442
Sheet 3 of 4
April 1 991
.c
om
Tech nical Data
29-220
Westinghouse Electric Corporation
Distri bution a n d Control B u s i n ess U n it
E l ectrical Com ponents Division
Pittsbu rg h , Pennsylva n i a , U . S .A. 1 5220
ua
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Electrical Operator Outline (Di mensions in Inc hes)
tM
+
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0
Removable H a n d l e
0
Used for Manual
Operation O n l y
0
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�<=
6
an
1-
0
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Types AQB-A1 601 , N O B - A 1 601
500- 1 600 Amperes; 500 Volts, 60 H z . Ac,
7 5,000 Am peres I . C .
April 1 99 1
Su persedes Tec h n i ca l Data 29-220,
pages 43-44, dated August 1 981
M a i led to: E, C/29-200A
Line End
Page 59
AOB -A 1 60 1 Breaker
Wiring D iagrams
For 1 20 Volt Ac Electric a l Operator
Limit Switches
ca
Load End
For 450 Volt Ac E l ectric a l Operator
l(2;)�=-::====;-�:;;::::-;­
tri
LS1
NC
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Ter m i n a l B l ocks
Control Device M u st Have
N o n - M a i ntained Type Contacts
S u p p l ied by Customer
.E
Switchboard Door Cutout
For E lectric a l ly Operated Breaker
'/2
M o u nt i ng Holes
for Mounting Base
--r�
Cutout
Nominal
Voltage
Style
Voltage
Range
N u mber
1 20 Volts Ac
450 Volts Ac
CD
Captive Screw
3j, s - 3 2 Tap
(2) Holes
Reproduced From Drawing
Electrical Operator
•;32 D i a meter H o l e
·
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Gasketed Cover
For Switc h board Door Cutout
(Gasket Ceme nted to Cover )
Control Device M ust Have
N o n - M a i n t a i ned Type Contacts
Supplied by Customer
1 371 046
CD
90- 1 30
1 37 1 D38G01
360-500
1 3 7 1 D38G03
A Transformer i s Provided i n The Operator Frame.
.c
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Tech nical Data
29-220
Page 60
1 \- t- M i n i m u m
, r,
500
300
2 00
� I"
I 00
\
� - 60
::;;
30
20
I
....
'
10
t--....
"�--
5
f4
3
2
1 .0
Ci).
E
i=
.05
.01
0
"'
0
0
N
0
0
!-.�-----
"' "" "'
r--
0
0
0
0
o
_
o
_
N
0
0
o
600
225
20 to 60 seconds
Less than 1 hour
1 hour or mo re
1-/
0 0
0 0
0
0
o o
o
tri
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30
20
2000
6000
Sheet 2 of 4
.3
.2
.1
0
0
0
0
0
o
Q
N
0
1ft
u
c
0
�
Ci)
(f)
c
(.)
,
[....- 4000
1, 2 , 00
M a x i m u m T i m e Delay U n i t
I
r
"-
r--
0
Table 1
Ampere
Rating
I.
-�1)
�
w 1t h o u1t r1 me D e l a y U m t -
.01
.001
-
Minimum Time Delay U n i t
-�---
.02
Ci)
E
i=
i
-+--
I
....
-......
. 03
E l ement
K'
.5
. 05
O perat i n g C h a racteristics
Trip unit rating 500-1 600 a mperes 50°C am b i e n t. Cold start.
60 cycles.
900J442
- 60
1.0
P ercent Rated C u r rent --------.!
Tri pping Time
Reproduced From Drawing
'
2
Minimum Time
Delay U n i t
r<) ,j' l{) r--"
Percent of Trip
Element Rating
1 50
:r ·
' \_, 600 Ll. m p T h e r m a l
1\. l A: ' '
\ }''i(
1 00
�:
fJ
7
0
0
f:-
Maximum Time
f--- D e l ay U n i t
�
0 0
0 0
I
200
�
3
W i t hout T i m e Delay
0
0
300
5
I
.03
.02
500
�
� l[
....-
.1
1,000
10
I nstantaneous Trip
Range ( Adjustable)
.
see Ta b l e N u m ber ,1
.3
.2
l+!- M i n i m u m
2,000
-
I
�
-3,000
w
,_
ca
1ft
u
c
0
(.)
Ci)
(f)
c
!
:
g;
�
r-......
for Actual Va lues
.5
'
-
I
�!= M a x i m u m
5,000
an
1 ,000
';
I
N
Mox1mum
1\
3,000
2,000
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1 L\
Expanded Time Delay Curve
10,000
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�
6
AQ B-AI601 Sta ndard Breaker
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10,000
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C h a racteristic C u rves
�
0
2
0
�
0
0
N
"'
0
0
0 0
0 0
"" "'
0
0
r--
0
0
o
_
0
0
0
N'
A mperes T i mes
·
0
0
0
0 0
0 0
o o
0
0
0
0
0
o_
rO <i' .n r-: 2
10
0
0
0
N
0
I nsta ntaneous T r i p Sett i n g i n A m p e res ± 1 0%
High
Low
2
3
500XT1
500XT2
2000
2000
3600
3600
4000
4000
4800
4800
6000
6000
600X
600XM
2000
4000
3600
7500
4000
8000
4800
1 0000
6000
1 2000
800X
800XT1
800XT2
2000
2000
2000
3600
3600
3600
4000
4000
4000
4800
4800
4800
6000
6000
6000
1 000X
1 000XT1
2000
2000
3600
3600
4000
4000
4800
4800
6000
6000
1 200X
1 200XT1
1 200XT2
2000
2000
2000
3600
3600
3600
4000
4000
4000
4800
4800
4800
6000
6000
6000
1 400X
4000
7500
8000
1 0000
1 2000
1 600X
1 600XT1
1 600XT2
4000
4000
4000
7500
7500
7500
8000
8000
8000
1 0000
1 0000
1 0000
1 2000
1 2000
1 2000
4
Westi n g house E l ectric Corporation
Distribution and Control Busi ness U n it
E lectrical Components Division
Pittsbu rgh, Pennsylvania, U . S .A. 1 5220
April 1 991
:J
<D
c.
::;·
c
�
�
Cn
Types AQB-A1 601 , N Q B -A1 601
5 00 - 1 6 0 0 Amperes; 500 Volts, 6 0 H z . Ac.,
75,000 Am peres I . C.
C h a racteristic C u rves, Continued
Factor for change in current rating of circuit
breaker with change i n ambient temperature.
Derating C u rve
� 30
c;
a;
E" zo
""
� 10
0o
Foetor
.5
1.0
1.5
2.0
2 . Known Conditions: (A) Ambient
( B ) Trip U n it Rating
To determine the load cu rrent on which a
trip u nit may be used when am bient is
known, divide the tri p unit rating by the
factor obtained from this curve for the
known am bient. The result will be the
max. load current on which the trip unit
shou ld be used.
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Reproduced From Drswing 900J442 Sheet 2 of 4
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Page 6 1
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
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ar
I
I
I
0
ca
u
<!
I
I
0
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A p p l icat i o n
1 . Known Conditions: ( A ) Ambient
( B ) Load Cu rrent
To determine the trip unit rating to be used
when the load current and amb i ent are
known, m u ltiply the load current by the
factor obtained from this curve for the
known ambient. The result will be the
ideal trip unit rating, however, since trip
u n its are furnished with only the standard
ratings as per Navy Specs, select the
standard trip unit whose rating is eq ual to
or one rating higher than the ideal rating.
lP
100
90
80
70
-{!j 60
�� 50
'"
� 40
29-220
ua
ls
April 1 99 1
Su persedes Tech n ical Data 29-220,
pages 45-46, dated October 1 978
M a i led to : E, C/29-200A
.c
om
Technical Data
Westinghouse Electric Corporation
Distri bution a n d Control Business U n it
E l ectrical Compo nents Division
Pittsburgh, Pennsylva n i a , U .S.A. 1 5220
.c
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Technical Data
29-220
w
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an
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Page 62
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Westi n g h o u se E l ectric Corpo ration
Distri bution and Control Busi ness U nit
Electrical Compon ents Division
Pittsburgh, Pennsylvania, U . S .A. 1 5220
Apri l 1 991
J u ly 1 99 1
Su persedes Tech n i cal Data 29-220,
pages 29-30, dated Apri I 1 99 1
M a i l e d t o : E, D , C/29-200A
Types AQB -A250, N Q B -A250
250 Volts De, 500 Volts Ac
250 Am peres Maximum, 20,000 Am peres I . C .
S pecificat i o n : M I L- C - 1 7361
1 25-250 A m peres
500 Volts Ac and 250 Volts De
Two and Three- Pole
Low
High
I
De
Low
High
I
Complete Breaker CD
Two-Pole 500 Volts Ae, 250 Volts De
225-N
225-N M
250-N
250-NM
250®
650 1 300
1 500 3000
650 1 300
1 700 3400
N o n -Auto
1
1 300
3900
1 300
3900
1 300
3900
1
650
2250
650
2250
650
2250
1 300
4 1 00
1 300
4 1 00
1 300
4 1 00
650 1 300
1 770 3550
650 1 300
1 850 3800
Non-Auto
31 3C682G03
31 3C682G04
31 3C682G05
31 3C682G06
31 3C682G07
31 3C682G08
an
5925-01 -233-6525
ca
650
1 950
650
1 950
650
1 950
31 3C682G09
31 3C682 G 1 0
31 3C682G 1 1
31 3C682G 1 2
31 3C682G31
tri
1 25 - N
1 25 - N M
1 50 - N
1 50 - N M
1 75 - N
1 75 - N M
1
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
tM
National
Stock No.
Style
N u m ber
I
Breaker Frame Only CD
lP
List Prices See Price List 29-020
lnst. Trip Setting - Amps
Page 29
AOB -A250 breakers can be ordered with
u ndervoltage release devices, a u x i l iary
switches and shunt trip atta chments com­
plete with auxiliary switc h . These attac h ­
ments are also easily installed i n the field.
ar
AQB -A250 circuit breakers are used pri­
marily to protect feeder circ u its, however,
those followed by "N M" in the price table
have higher magnetic setti ngs to a l low for
motor starting. Breakers with settings spe­
cifically for use with generators are desig ­
nated " N G " i n the price table.
Ac
29-220
These breakers are ava i l a ble w i t h i nter­
changeable trip u n its in ratings of 1 25, 1 50,
1 7 5, 225 and 250 amperes. The n o n ­
automatic N O B -A250 carries a 250 ampere
rating and has copper conductors replacing
the trip u n it. Special generator breakers have
trip u n its rated at 1 00 , 1 60, and 250 am peres.
I nterrupting R a t i n g s
20,000 Amps Ac and 1 5,000 Amps De
l
Tech n ical Data
ua
ls
A Q B - A250 a n d N Q B -A250 B reakers
Cont.
Ampere
Rating
.c
om
8
Westinghouse Electric Corporation
Distribution and Control B u s i n ess U n it
E lectrical Com ponents Division
Pittsburgh, Pennsylva n i a , U . S.A. 1 5220
1
1
I
Trip U n it Only
Style
N u m ber
N ati on al
Stock No.
452 D370G01
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
452D370G01
452D370G01
452D370G01
452D370G01
452D370G03
5925-00-796-4371
5925-00-796-437 1
5925-00-796-4371
5925-00-796-4371
452D37 1 G09
452D37 1 G 1 0
4520371 G 1 1
452D371 G 1 2
29B27 1 0G05
452D370G01
452D370G01
452D370G01
5925-00-796-4371
5925-00-796-437 1
5925-00-796-4371
4520371 G 1 3
452D371 G 1 4
4520371 G 1 5
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 18
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
452D371 G 1 8
452D371 G 1 9
452D371 G20
452D37 1 G 2 1
452D37 1 G 2 2
452D37 1 G23
5925-00-795-4958
5925-00-839-0289
5925-00-795-4957
5925-00-839-0290
5925-00-796-4439
452D370G02
452D370G02
452D370G02
452D370G02
452D370G04
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 18
5925-00-83 1 -8801
452D37 1 G24
452D37 1 G 2 5
452D371 G26
452D37 1 G 27
29B271 0G06
5925-00-839-0291
5925-00-839-0292
5925-00-839-0293
5925-00-690-7568
5925-00-831 -8800
4520371 G28
452D371 G 2 9
452D371 G30
5925-00-852-7809
5925-00-795-4956
..............
Style
N umber
4520371 G03
4520371 G04
4520371 G05
4520371 G06
4520371 G07
452D371 G08
1 00 - N G
1 60 - N G
250- N G
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Two Pole 500 Volts Ae, 250 Volts De G enerator Circuit Breaker Applications
1 1 7 5 2350
1 950 3900
.
. • .
. . •
.
. . . . . . . .
. . . . . . . .
650 1 300
3 1 3 C682 G 1 3
31 3C682 G 1 4
31 3C682 G 1 5
Three- Pole 500 Volts Ae, 250 Volts De
650
1 950
650
1 950
650
1 950
1 300
41 00
1 300
41 00
1 300
4 1 00
31 3C682 G 1 8
31 3C682G 1 9
31 3C682G20
31 3C682G21
31 3C682G22
31 3C682G23
5925-00-248-1425
5925-01 -031 -9909
5925-01 -229-4448
650 1 300
1 770 3550
650 1 300
1 850 3800
N o n-Auto
31 3C682G24
3 1 3 C682G25
31 3C682G26
31 3C682G27
31 3C682G36
5925-0 1 - 1 73-2587
5925-01 -21 0-5267
........ .. ....
5925-01-272-3805
. . . . . . . . . . . . . .
650
2250
650
2250
650
2250
1 300
3900
1 300
3900
1 300
3900
.E
1 25 - N
1 25 - N M
1 50 - N
1 50 - N M
1 75 - N
1 75 - N M
1
650 1300
1 500 3000
650 1300
1700 3400
Non-Auto
w
225-N
225-N M
250-N
250- N M
250®
1
1
5925-01 -235-0710
5925-01 - 1 92-3985
1
Three-Pole 500 Volts Ac, 250 Volts De Generator Circuit Breaker Applications
1 1 7 5 2350
1 950 3900
. . . . . . . .
ww
1 00 - N G
1 60 - N G
2 50 - N G
. . . . . . . .
. . . . . . . .
6 5 0 1 300
31 3C682G28
31 3C682G29
31 3C682G30
5925-01 -080-2226
5925-01-104-4625
. ... .. .. .. .. ..
452D370G02
452D370G02
452D370G02
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
1
National
Stock No.
· · · · · · · · · · · · · ·
.
...... .......
5925-00-793-6865
· · · · · · · · · · · · · ·
5925-00-175-5058
5925-00-064-7834
· · · · · · · · · · · · · ·
· · · · · · · · · · · · · ·
· · · · · · · · · · · · · ·
· · · · · · · · · · · · · ·
· · · · · · · · · · · · · ·
N ote : B reakers with rati ngs other than than those given on this page are co n s id e re d as special and full d escri pt ion data m ust be provided.
CD Styles listed include slip-type connectors for rear connections. Order front terminal
see page
connectors separately if required;
30. No additional charges for front connectors ordered with breakers or frames.
® Type N QB-A250 non-automatic.
.c
om
Cl
Tec h n ical Data
29-220
Page 30
l
AQB-A250 and NOB-A250 Breakers, Conti n u ed
List Prices See Price List 29-020
l n �tantaneous
Tnp Sett1ng
i n AmperesCD
H igh
low
I
B reaker Frame O nly®
Com plete Breaker(%)
National
Stock No.
Style
N umber
Style
N umber
National
Stock No.
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
400 Cycle, Two-Pole, 500 Volts Ac
1 25 - N H
1 50 - N H
1 75 - N H
225 - N H
250- N H
1
1 560
1 560
1 560
1 560
1 560
910
910
910
910
91 0
1
31 5C574G03
31 5C574G05
31 5C574G07
31 5C574G09
31 5C574G 1 1
1
400 Cycle, Two-Pole, 500 Volts Ac Generator Circuit Breaker Applications
3420
3420
4200
31 5C574G 1 3
31 5C574G 1 4
31 5C574G 1 5
........ .. ....
........ .. ....
..............
400 Cycle, Three-Pole, 500 Volts Ac
1 560
1 560
1 560
1 560
1 560
910
910
910
91 0
91 0
1 25 - N H
1 50 - N H
1 75 - N H
225- N H
250 - N H
I
1
31 5C574G 1 8
31 5C574G20
31 5C574G22
31 5C574G24
31 5C574G26
5925-01-075-8931
5925-01-1 00-4027
5925-01-1 93-6055
1
Style
N umber
National
Stock No.
457D446G03
457D446G05
457D446G07
457D446G09
457D446G 1 1
..............
· · · · · · · · · · · · · ·
· · · · · · · · · · · · · ·
..............
..............
· · · · · · · · · · · · · ·
457D446 G 1 3
457D446G1 4
457D446G1 5
5925-00· 758-6227
5925-00-789-3718
5925-00-789-3718
592 5-00-789-371 8
5925-00-789-3718
5925-00-789-3718
457D446G 1 8
457D446G20
457D446G22
457D446G24
457D446G26
5925-00-803-5491
5925-00-803-5488
5925-00-899-9904
5925-01-1 93-6056
5925-01-1 49-4269
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-3718
457D446G28
457D446G29
457D446G30
5925-00-238-5198
5925-00-803-5489
452D370G01
452D370G01
452D370G01
5925-00-796-437 1
5925-00-796-4371
5925-00-796-4371
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
an
2020
2020
2520
tM
1 00 - N G H
1 60 - N G H
250 - N G H
Trip Unit Only
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Cont.
Ampere
Rating
· · · · · · · · · · · · · ·
400 Cycle, Three-Pole, 500 Volts Ac Generator Circuit Breaker Applications
2020
2020
2520
3420
3420
4200
31 5C574G28
31 5C574G29
31 5C574G30
.......... .. ..
...... .. .. .. ..
.... .. ........
452D370G02
452D370G02
452D370G02
· · · · · · · · · · · · · ·
ar
1 00 - N G H
1 60 - N G H
250-NG H
Switch board M ou n t i n g
Com plete breakers and frames include mounting hardware. Female slip connectors are
mou nted in breaker base to plug onto stud projections of terminal mou nting block assem­
blies. Order one mounting block assembly for each end of breaker.
One Stud Assembly complete with 4 n uts
Terminal Mtg. Block ( N o Studs)
Mounting Block and Stud Set (3 Studs)
Style
N umber
National
Stock No.
lP
I
I
1 631 443
31 3C681 G01
31 3C680G02
( N et Weight - 2 1> lbs.)
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Description
Front C o n n ected B reakers
For con nections made at front terminals, pressure-type l ugs required. If specified on same
order, connectors furnished no charge. One con nector per terminal. Select below.
I
N40-N75
N 1 00 - N 1 25
N 1 50-N200
Amps
1 25
1 50 - 1 7 5
250
I
I
Description
Solderless
Connector
K i t to C o nvert A O B Frame to N O B
B reaker
Poles
II
I
Style
N u m ber
tri
I
20B3055 H 1 4
20B3055 H 1 5
20B3055H 1 6
lec
Cable
Range
I
I
National
Stock No.
..............
..............
............ ..
Net
Weight
3
.E
% lb.
CD For 400 cycle breakers with higher instantaneous trip ratings, refer to Westinghouse.
® Styles listed include s l ip-type connectors for rear connections. Order front terminal connectors separately if
required. N o additional charges for front con nectors o rdered with breakers or frames.
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Westi n g ho u se Electric Corporation
Distribution and Control B us i ness U n it
Electrical Com ponents Division
Pittsburgh, Pennsylva nia, U . S.A. 1 5220
July 1 991
8
Westinghouse Electric Corporation
Distribution a nd Control B u s i ness U n it
E lectrica l Com ponents D ivision
Pittsb u rg h , Pennsylva n i a , U . S.A. 1 5220
J u ly 1 99 1
S u persedes Tec h n i c a l D a t a 29-220,
pages 31 -32, dated April 1 99 1
M a i l ed to : E , D, C/29-200A
Types AOB -A250, N O B -A250
250 Volts De, 500 Volts Ac
250 Am peres Maximum, 20,000 Am peres I . C.
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AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
28 V De
1 1 5 V Ac
1
Style
N u mber
National
Stock No.
452D377G05
5925-00-831 ·8808
tM
24- 32
90- 1 30
an
Voltage
Range
1 20 V De
450 V Ac
90- 1 30
360-500
I
452D377G07
5925-01 -007-5836
U n d ervoltage Device: Automatically trips breaker when l i n e voltage drops below 40 to
60% of normal. After u n dervoltage coil has dropped out a nd tripped breaker o n reduced
voltage, it automatically resets by breaker action. ( If u ndervoltage coil is energized to 80%
of norma l ) . Select device below. Net weight., 1 . 1 2 lbs.
Nominal
Voltage
450 Ac,
60 Cycle
250 De
33 De
I
Voltage
Range
Pickup and
Seal Volts
( M i nimum)
360-500
360
1 75-355
30- 36
1 50
22
I
Dropcut
Voltage
290
45
25
5
Max.
M in.
M in.
M in.
I
Style
Number
National
Stock
N u mber
452D837G01
5925-00-920-3099
452D837G02
452D837G03
5950-00-790-4869
I n d i v i d u a l Rep roductions: When required, reprod uction of master drawings, outline
drawings and certification sheets can be ordered as follows:
Item
I Description
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Contact Westing house fo r o t h e r rat i n g s or
types of m o u nti n g .
Nominal
Voltage
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Auxiliary Switch: T h e most commonly used,
when required, is style 452D379G02, national
stock n u m be r 5930-00-732-840 1 . I ntern a l ly
mou nted switch is used to open or close
control ci rcuits as breaker operates and is
provided with "A" a n d "B" contacts. "A"
contact i s n o rm a l ly closed when breaker i s
closed a n d open when breaker i s o pe n ; " B "
i s normally o p e n when breaker is closed
a n d closed with breaker open. It h a s the
following rati n g at g iven voltages: 15 a m p
- 1 2 5, 250 o r 460 volts A c ; '12 a m p- 1 25 volts
De; % a m p-250 volts De. Net we i g ht, . 1 7 l b .
Page 31
Shunt Trip: S h u nt trip attachm ents for tripping the breaker electrica l l y from a remote
point a re l i sted in table below. S h u nt trips have mom entary rating o n l y and for protection
m u st be connected in series with a u x i l i a ry switch . An Auxi l i a ry Switch is i ncluded in the
shunt trip n u m bers shown below. Do not order sepa rately. Net weig ht, .70 l b .
lP
M ec h a n ical I nterlock : If mechanical
interlock (switchboard use) is desired for a
pair of breakers, order by descri ption. ( N ot
subm itted for Navy approva l . )
29-220
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ls
A Q B -A250 a n d N Q B -A250 B reakers, Contin ued
Additions
H a ndle Lock : If req uired, order style
1 7 201 01 . O ne furnished no charge per
1 0 breakers ordered, when requested. Net
wt., . 1 5 lb.
Tech n ica l Data
1
2
3
4
tri
F u n g u s - M o isture - Resistant Treat­
me nts : (JAN- T-1 52; J A N - C - 1 73 or M I L ­
V - 1 7 3 ) : If specified, contact Westi ng house.
External parts are coated; trip u n its are not
treated.
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Technical Manual - NAVSHIPS No. 3622 1 64: This booklet per M I L-M-1 507 1 . When
req u i red, order BVR-TM-379A.
I
I
Full size photolithic tracing of master drawing on vel l u m
Outline and dri l l i n g p l a n on v e l l u m
Certification d a t a o n vellum
Reproducti o n s of items 1, 2, o r 3
D rawings Ava i l a b l e : Master drawing 900- J -376; front and rear connected breaker out­
line, drilling and wiring diagra m 452- D - 834.
Ordering I n formatio n : Page 4
N et Weight, Lbs.
AOB Com plete, 3 - Pole A250
NOB Complete, 3 - Pole N 250
3- Pole AOB, NOB Frame
AOB Trip U n it. 3 - Pole
20.50
1 7 .50
1 7.00
3.50
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Technical Data
29-220
Page 32
O u t l i n e D i m e ns i ons AOB -A250 Breaker
Front face of mounting
sheet or channel
Support blocks ore not supplied
�
2 16
with breoke')_ but must be ordered
---+--+--+
separately. r<efer to drawing
313C680 Al l ports necessary to
nve r t a breo ker are included.
�-16Stud
8
'--t--"---t-t-+ 4 - 20 Mtg.
I
Screws
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line End
-f---W,e"Ji1�9==ii==Jri=EE6.:___,:;co
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11
Handle locking Device
( N ot Su pplied With
Circuit Breaker)
Frome
Nameplate
Front Sheet
Visible amp rating
interchangeable
trip unit
ar
load End
Warning
Nameplate
D r i l l i n g Plan
Front Sheet D r i l l i ng Template
For Term i n a l Mounting B locks
lP
�
1 Dio. 4 holes
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�
,k---1
3
_J�r-T
(1"
�
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Front C o nnected Solderless
Term i nals Identification
Style N u m ber
Cable Range A
8
MCM
Min
75
50
2083055H1 5
1 25
2083055H16
200
.E
Max
2083055H14
c
1 2''Ao
6"ho
5..ho
100
13
6"11•
6'Ao
1 50
1 3'11,,
7'ho
8'ho
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Front Connected Terminals are not Supplied with
Circuit Breaker
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4
undervoltage release
shunt trip or auxiliary
switch leads. Hole to be
dri l ied in switchboard
breaker support.
5
Reorconnections
7 r1� ore on 3"centers
Bottom of
Front co nections
mig. block
a e on 24 centers
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1
3
8 Diameter 2 holes for
tri
Flat washers, lock
washers and nuts
supplied with terminal
mounting blocks
Left hand
side of
breaker
1i
Wiring D iagrams
AQB
NOB
Line End
Line End
Jll Hi
Load End
Load End
1� Dia. 3 holes
megger test
for
load End
�))
When U nder-Voltage
Release is Provided
r - - - - - - - --,
i
:
1
J 1 i
� I,
:
1
When ShOJnt Trip and Auxiliary
Switch i s Provided
r - -- - - - -,
and B Auxi li ary i l l l :
sw1tch 3 l ea d s
1
� Y l,
A
18" long ----. l
) ))
r
:
Undervoltage
: m�
release
�w!ifl\
leads
•
L._
_
:
--J
2
18" long
•
L__ _
:
_J
Note:
The auxiliary switch must be used with each shunt
trip. Connect one side of shunt trip in series with "'A''
contact (Closed when breaker is closed) of auxiliary
switch when connecting to power supply.
leads 18" long
S h u nt trip 2
Westi n g house E l ectric Corporati on
Distribution a n d Control Busi ness U n it
E l ectrical Com ponents Division
Pittsburgh, Pennsylvania, U . S.A. 1 5220
July 1 991
.c
om
Technical Data
Westinghouse Electric Corporation
Distri bution a n d Control B u si n ess U n i t
Electrical Com ponents Division
Pittsburgh, Pennsylvania, U . S.A. 1 5220
Types AQB-L400QF, AQB-L400Q M ;
1 50,000 Am peres I .C. a n d
AQB-LL400QS ; 1 00,000 Am peres I . C .
250-400 A m peres; 500 V o l t s 60 Hz A c
Mounting Block
Undervoltage Release ( Left-Pole Only)
UVR and Ci rcuit Breaker m u st be ordered as
a n i nteg ra l u n it
Westinghouse
Style Number
1 230C81 G01
Plug-in Mounting Block, Rear
Connected, Complete
(Required one per load or line
end)
Type
AOB:L4000F with 1 1 5 V Ac
Undervoltage Release
Mechanism
Westi nghouse
Style Number
1 230C83G 1 5
Switchboard Mounting
Breaker frame includes m o u nting h a rdware.
Stud projections a re m o u nted on the rear of
the breaker for plugging into fe m a l e s l i p
co nnectors of term i n a l m o u nting block
asse m bl ies.
1 230C83G 1 6
Handle Lock ( Fo r s h i pboard m a i ntenance
use only) o rder style n u m be r 1 7201 0 1 .
Mounting Block, Molded Base
Only
(For mounting a front connected circuit breaker, or as a
replacement part)
1 230C81 G05
Male Slip Connectors
(Replacement part, three per
kit)
1 230C81 G04
AOB-L4000F with 1 20 V De
Undervoltage Release
Mechanism
1 230C83G 1 7
Front Connected Terminal
(Required three per line or
load end)
504C497G01
AOB-L4000F with 250 V De
Undervoltage Release
Mechan ism
1 230C83G 18
AOB-L4000M with 1 1 5 V Ac
Undervoltage Release
Mechanism
1 230C83G19
AOB-L4000M with 450 V Ac*
Undervoltage Release
Mechanism
1 230C83G20
AOB-L4000M with 1 20 V De
Undervoltage Release
Mechanism
1 230C83G21
AOB-L4000M with 250 V De
Undervoltage Release
Mechanism
1230C83G22
AOB-LL4000S with 1 1 5 V Ac
Undervoltage Release
Mechanism
1 230C83G 1 1
AOB-LL4000S with 450 V Ac*
Undervoltage Release
Mechanism
1 230C83G12
1 230C83G13
1 220C86G08
AOB-LL4000S with 1 20 V De
Undervoltage Release
Mechanism
1220C86G09
AOB-LL4000S with 250 V De
Undervoltage Release
Mechanism
1 230C83G14
Auxiliary Switch
1 a/1b 1 1 5-450 V Ac
2a/2b 1 1 5-450 V Ac
1 a/1b 120 V De
2a/2b 1 20 V De
1 a/1b 1 1 5-450 V Ac and 1 a/1b
1 20 V De Combination
1 220C86G01
1 220C86G02
1 220C86G05
1 220C86G06
1 220C86G07
Shunt Trip
Type
1 220C86G03
1 220C86G04
lec
Combination Shunt Trip and
1 a/1b Auxiliary Switch (LeftPole Only)
tri
Westinghouse
Style Number
Shunt Trip (Left-Pole only)
(Includes built-in cutoff switch)
1 1 5 V Ac/28 to 1 20 V De
450 V Ac Only
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1 1 5 V Ac/28-1 20 V De Shunt
Trip and 1 1 5-450 V Ac Auxiliary Switch
1 1 5 V Ac/28-1 20 V De Shunt
Trip and 120 V De Auxiliary
Switch
450 V Ac Shunt Trip and
1 1 5-450 V Ac Auxiliary Switch
450 V Ac Shunt Trip and 1 20 V
De Auxiliary Switch
ar
Westinghouse
Style Number
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Type
lP
Auxiliary Switches
tM
AOB-L4000F with 450 V Ac*
Undervoltage Release
Mechanism
1 220C86G 1 0
1 220C86G 1 1
Fungus - Moisture - Resistance Treatments: (JAN-T- 1 52 ; JAN-C- 1 73; M I L-V-1 73)
If specified contact Westinghouse. Exte rnal
parts a re coated.
Technical Manual: When req u i red o rd e r
1 240C33H01 .
Portable Test Kit - Can be used to functiona l ly test the breaker for ove rload a n d s h o rt
circuit, wh i l e breaker is m o u nted. When
req u i red o rder cata log n u m be r STK2.
Individual Reproduction : When req u i red
reproduction of outl i n e d rawings a n d certification sheets can be ordered a s fo l l ows:
Item
1
2
3
Description
Outline drawing and drilling plan on vellum
Certification data on vellum
Reproduction of items 1 and 2
Repair Parts:
Net Weight:
*Using externally-mounted step-down transformer
supplied
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
Type
Page 43
ua
ls
July 1 99 1
Supersedes Technica l Data 29-220,
pages 43-44, dated April 1 99 1
Mailed t o : E, D , C/29-200A
29-220
Item
Circuit Breaker
Motor Operator
Mounting Block
Front Connected Terminals (Set
of Three)
Portable Test Kit
Weight
30 lbs.
22 lbs.
10 lbs.
1 lb.-10V• ozs.
12 lb.-14'14
ozs.
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Tec h n i ca l Data
29-220
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an
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Page 44
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Westi nghouse E l ectric Corpo ration
Distribution and Control Busi ness U n it
E l ectrical Com ponents Division
Pittsburg h , Pen n sylva nia, U . S .A. 1 5220
July 1 991
.c
om
Technical Data
Westinghouse Electric Corporation
Distribution a n d Control Busi ness U n i t
Electrical Compo nents Division
Pitts b u rg h , Pennsylva nia, U .S.A. 1 5220
J u ly 1 99 1
Su persedes Technical Data 29-220,
pages 45-46, dated April 1 99 1
Mai led to: E, D, C/29-200A
•
Navy Type AQB-L400QF
Circuit Breaker
-c�--::-::t=:
::
:=-c--'--1
Rating Plug: 3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C� to + 70 Deg. C.
ar
� :-::-cr=±=cccc==l
tM
Rating Plug: 2500
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
Navy Type AOB-L400QF
Circuit Breaker
Page 45
ua
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•
Types AQB-L4000F, AQB-L4000 M ;
1 50,000 Am peres I .C. a n d
AQB-LL400QS; 1 00,000 A m peres I .C.
250-400 A m peres; 500 Volts 60 H z Ac
29-220
: : -:-::::1 100
<
�- �� � .z
§
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tri
ca
lP
- �-�-1 50
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Time-Current Curves for AOB-L4000F Circuit Breaker with 250 Ampere
Rating Plug
Time-Current Curves for AOB-L4000F Circuit Breaker with 300 Ampere
Rating Plug
1
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Tech nical Data
29-220
Page 46
•
Navy Type AQB-L400QF
Circuit Breaker
= : - =:::::=
I ::
Rating Plug: 3500
�-- - · 1 •---
-
H1gh Setng _:
--� �
l;o,-:--cf-+==o--,---l=t±c!= I6�S";
1 1 500 A)
I
- 1 10
-;-----t -r--..._.
• -----
-� '
--=�- ;
-� �
0
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tri
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__
0
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�
Delay P1ck-Up ;--t-t--- --
Curve Tolerance Applies
Over Temperature Range of
-20 Deg. C. to + 70 Deg. C.
woo
-----'-----t--+ - - < 2
- -�- T:�- - � ; �-- -� _; ;·: �� ,
Short
-------r - · �
:::;
tM
Curve Tolerance Applies
Over Temperature Range of
- 2 0 Deg. C. t o + 7 0 Deg. C.
Navy Type AQB-L400QF
Circuit Breaker
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•
Time-Current Curves for AQB-L400QF Circuit Breaker with 400 Ampere
Rating Plug
.E
Time-Current Curves for AQB-L400QF Circuit Breaker with 350 Ampere
Rating Plug
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Westi nghouse E l ectric Corporation
Distribution and Control Busi ness U n i t
E lectrical Components Division
Pittsburgh, Pennsylva nia, U .S.A. 1 5220
July 1 991
J u ly 1 99 1
S u persedes Technical Data 29-220,
pages 47-48, dated Apri l 1 99 1
M a i led to: E, D, C/29-200A
•
. :-r----
�
+ --
----
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Navy Type AQB-l400QM
Circuit Breaker
Rating Plug: 3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
,___
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�
Page 47
lP
I
tM
Rating Plug: 2500
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
29-220
an
Navy Type AQB-l400QM
Circuit Breaker
Tec h n ical Data
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•
Types AQB-L400QF, AQB-L400Q M ;
1 50,000 Am peres I .C. a n d
AQB-LL400QS; 1 00,000 Am peres I .C.
250-400 Am peres; 500 Volts 60 Hz Ac
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Westinghouse Electric Corporation
Distribution a n d Control Busi ness U n it
Electrical Compon ents Division
Pittsburgh, Pen nsylva n i a , U . S.A. 1 5220
tri
ca
·------+-�-+--�---<
· ��-� .-+--. o
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. • 1 - --l l
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Time-Current Curves for AOB-L4000M Circuit Breaker with 250 Ampere
Rating Plug
Time-Current Curves for AOB-L4000M Circuit Breaker with 300 Ampere
Rating Plug
.c
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Technical Data
29-220
Page 48
•
Navy Type AQB-L400QM
Circuit Breaker
Navy Type AQB-L400QM
Circuit Breaker
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•
Rating Plug: 4000
� - ---·
-+---
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tri
ca
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'
r-� 1uoo
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Curve Tolerance Applies
Over Temperature Range of
- 20 Oeg. C. to + 10 Deg. C.
Time-Current Curves for AOB-L4000M Circuit Breaker with 400 Ampere
Rating Plug
.E
Time-Current Curves for AOB-L4000M Circuit Breaker with 350 Ampere
Rating Plug
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Westi ngh ouse E l ectric Corporation
Distribution a n d Control Busi ness U n it
E lectrical Components Division
Pittsburgh, Pennsylva nia, U . S.A. 1 5220
July 1 991
•
Navy Type AQB-LL400QS
Circuit Breaker
ar
tM
Rating Plug: 2500
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
Navy Type AQB-LL400QS
an
Circuit Breaker
Page 49
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•
29-220
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Types AQB-L400, AQB-LL400
500 Volts Ac
400 Am peres Maxi m u m , 1 50,000,
1 00,000 Am peres I.C., Respectively
J u l y 1 99 1
S u persedes Tech nical Data 29-220,
pages 49-50, dated April 1 99 1
M a i led t o : E, D , C/29-200A
<
�
��'�'m·u·m Te�p
�� ---- + •�
:;:
Rating Plug: 3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Oeg. C. to + 70 Oeg. C.
T1me •
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Tech nical Data
Westinghouse Electric Corporation
Distribution a n d Control Business Unit
Electrical Components Division
Pittsburgh, Penn sylva n i a , U . S . A. 1 5220
_ _
l___ LL.J
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Time-Current Curves for AOB-LL400QS Circuit Breaker with 250 Ampere
Rating Plug
oo1
Time-Current Curves for AOB-LL400QS Circuit Breaker with 300 Ampere
Rating Plug
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Tech nical Data
29-220
Page 50
•
Navy Type AQB-LL400QS
Circuit Breaker
Rating Plug: 3500
Navy Type AQB-LL400QS
Circuit Breaker
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•
i -�
-i lGilil
Curve Tolerance Applies
Over Temperature Range of
-20 Deg. C. to + 70 Oeg. C.
t
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Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
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Time-Current Curves for AOB-LL4000S Circuit Breaker with 400 Ampere
Rating Plug
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Time-Current Curves for AOB-LL4000S Circuit Breaker with 350 Ampere
Rating Plug
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Westing house E l ectric Corpo rati on
Distribution a n d Control Busi ness U n it
Electrical Components Division
Pittsburgh, Pennsylvania, U .S.A. 1 5220
July 1 991
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Westinghouse Electric Corporation
Distribution and Control Busi ness Unit
E l ectrical Components Division
Pittsburgh, Pen nsylva nia, U . S.A. 1 5220
J u l y 1 99 1
Supersedes Tech n ical Data 29-220,
pages 51 -52, dated Apri l 1 99 1
M a i l e d to: E, D, C/29-200A
29-220
Page 51
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Types AQB-L400, AOB-LL400
500 Volts Ac
400 Amperes M a x i m u m , 1 50,000,
1 00,000 Am peres I .C., Respectively
Tech n ical Data
tM
an
Outline Dimension AQB-L400, AOB-LL400
Automatic
Tripped
ar
(
'
'
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Front Surface
of Mounting
Panel
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I
103/16
tri
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Reset
Max
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Dimensions in Inches
t
2 1 3132 Load End
2 1 7132 Line End
*Conductor Height for Front
Connection
14%
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Technica l Data
29-220
Page 52
Outline AQB-L400, AQB-LL400 with Motor Operator
101 '116
16
0
r-
627/32
I
---+---
II
0
Automatic
Tripped
I-f--I-f--'---f--
513/16
Off
Reset Max.
I
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@
@
!
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@
@
��
Lo ad End
99/1 6
14'14
,,
u
5f1 s-18 Mounting
H a rdware
Dimensions in Inches
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@
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11'/32
@
Lin e End
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Westi nghouse E l ectric Corporati on
Distribution a n d Control Busi ness Unit
E l ectrical Components Division
Pittsburgh, Pennsylvania, U . S.A. 1 5220
J u ly 1 991
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8
Tech n ical Data
Westinghouse Electric Corporation
Distribution a n d Control B u s i n ess U n it
E l ectrical Components Division
Pittsburgh, Pennsy lv a n i a , U . S.A. 1 5220
•
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
A Q B - A 1 601 a n d N Q B -A 1 601
N avy B reakers
•
•
Note: AQB-A 1 601 are sold for replace­
ment only. They are no longer on the
Navy Qualified Products List.
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•
Page 55
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Types AQB -A1 601 , N Q B -A1 601
500 - 1 600 Am peres; 500 Volts, 60 H z Ac,
75,000 Amperes I . C .
J u l y 1 99 1
S u pe rsedes Tech nical D a t a 29-220,
pages 55-56, dated April 1 99 1
M a i led to: E, D, C/29-200A
29-220
•
•
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Complete Breaker
List Prices See Price List 29-020
3 Pole, 500 Volts, 60 Cycles A-c
Breaker O n ly, consists o f :
tri
Type Continuous Instantaneous
Trip Setting
Ampere
A-c Amperes
Rating
Low
High
Frame (Includes Stabs)
National
Stock
N u mber
'I
lec
Style
N u m ber
Trip u n its for these breakers have an adjust­
able i nsta ntaneous trip and are l i sted with
a nd without delayed instantaneous trip for
system coord i nation.
Trip U n i t
Style
N umber
National
Stock
N u m ber
Without Delayed Instantaneous Trip
600X
600XM
800X
1 OOOX
1 200X
1 400X
1 600X
1 600
2000
4000
2000
2000
2000
4000
4000
6000
1 2000
6000
6000
6000
1 2000
1 2000
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G04
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AQB
AQB
AQB
AQB
AQB
AQB
AQB
NQB
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
3720523G01
3720523G03
3720523G07
3720524G03
3720524G05
3720524G07
3720524G09
3720524G 10
2000
2000
2000
2000
4000
6000
6000
6000
6000
1 2000
1
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-01 -1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
1
374021 1 G01
374021 1 G 07
3740 2 1 2 G03
374021 2G05
374021 2G09
5925-00-406-61 31
5925-00-1 02-6086
5925-00-727-7574
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With Delayed Instantaneous Trip (XT2 - Max. Time Delay .0708 - .0750 Sec.)
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AQB 500XT2
AQB 800XT2
AQB 1 200XT2
AQB 1 600XT2
:!000
2000
2000
4000
6000
6000
6000
1 2000
3720522G02
3720522G02
3720522G02
3720522G02
5925-01 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
37402 2 1 G01
3740221 G07
3740222G05
3740222G09
N Q B - A 1 601 Breakers have a continuous
rating of 1 600 a mperes. They are used only
as d iscon nects since they do not have a n
automatic t r i p device.
Note : B reakers with rati ngs other than those
l isted above are considered as special a nd
f u l l descriptive data must be provided.
With Delayed Instantaneous Trip (XT1 - M i n . Time Delay .041 7 - .0458 Sec.)
AQB 500XT1
AQB 800XT1
AQB 1 000XT1
AQB 1 200XT1
AQB 1 600XT1
AQB-A 1 601 circuit breakers are designed
for i nsta l l ation i n switchboards for protec ­
tion of gen erators a nd feeder a nd branch
circu its.
A complete breaker consists of a breaker p l us
mounting base a nd is available with n u mer­
ous attachments such as electrical operator,
shunt trip, u n dervoltage release a n d a ux i l iary
switches to perform varied auxil iary func­
tions.
�
�
"
Breaker Only
500-1 600 Am peres, 500 Volts A-c, 60
Cycles O n ly, 3- P o l e, 50°C A m b i ent
I nterrupting R a t i n g : 75,000 Amps. A - c
(Without Delayed I nsta ntaneous)
50,000 A m ps . A-c {With Del ayed
I nsta nta neous)
S pecificati o n : M I L- C - 1 7361
C l ass : H i S h ock M I L-S-901
Vi brati o n : M I L- S T D - 1 67
M aterial a n d Work m a n s h i p : M I L- E -91 7
5925-00-727-7555
5925-00-1 03-4248
400 cycle breakers are not ava i l a b l e .
29-220
Page 56
Mounting BaseCD
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Tech ni cal Data
N et Weig hts
Optional Additions(])
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Shunt Trip @ : M o u nts i n right pole o n l y .
Has momentary rating o n l y ; coil leads m u st
be wired in series with 1 A contact of aux­
i l i a ry switch.
Description
Undervoltage Release@ : M ounts i n right
pole only.
Electrical Operator, 1 1 5 Volt
Electrical O perator, 450 Volt
Shunt Trip
Undervoltage Release
Auxili ary Switch
Cable Con nector
an
Auxiliary Switch : M o u nts i n left pole only.
4 co ntacts, a ny co m b i nation of A's a n d B's,
(su p p l ied as 2A and 2B u n l es s specified)
8 contacts, any combi nation of A's and B's,
( s u p p l ied a s 4A a n d 4B u n l es s specified)
B reaker Only
AQB
NQB
Breaker Frame (AQB and N Q B )
Trip U n it
AQB
NQB
M ounting Base O n l y
For switch board mounting. I n c l udes back
connectors for switchboard bus and male
stabs to engage breaker. M atching stabs are
suppl ied with breaker frame.
Cable Con nector : M o u nts to b us connector
fo r cable co n nection. Each lug accepts fo u r
cables, 600 M C M max. 1 l u g req u i red p e r bus
co nnector.
Style N u m be r : 505C706G03
1 51
1 48
1 28
23
20
75
27
35
*
1%
a
3
Ordering I nformation
When orderi ng Westi ngho use N avy circuit
breakers consult the check l ist below to
make sure you have provided correct infor­
mation. You should specify:
ar
Style N u mber: 373D307G02
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Automatic Reset Switch
For use with m otor o perator when an auto­
matic reset fu nction is req u i red. Factory in­
stal led only.
Weight,
Lbs.
1 . Q u a ntity, West i n g h o u s e style n u m ­
b e r a n d N a t i o n a l stock n u m b e r of:
Fungus, Moisture Resistant Treatment:
(a) B reaker frame and trip u n it.
(JAN-C- 1 73 or M I L-V- 1 7 3) : If s pecified, co n­
(b) M o u nting base.
tact Westi ngh ouse. Exte rnal p a rts are coated;
(c) Spare breakers or trip u nits. ( U sually
tri p u n its a re not treated.
one req uired for each ten u nits or
Drawings
fraction thereof of each current
M aster p l a n : 900J442
rati ng.)
(d) I nstruction books.
S h eet 1 of 4: Breaker O n l y a n d Wi r i n g d i a­
grams
2. S h i p me n t
S h eet 2 of 4 : Trip U n it, Cu rves and Attach­
Specify transportation means, method o f
ments
packag ing and preservation a n d requi red
S h eet 3 of 4 : M o u nt i ng Base and Cable
s h i p p i n g d at e .
Conn ectors
S h eet 4 of 4: Motor Operator
3 . D rawi n g s
Individual Reproductions: When req u i red,
Specify quantity o f outline o r master p l a n
reproductions of sheets 1 t h r u 4 of m a ster
drawings req u i red.
p l a n 900J442 can be ordered as fol l ows:
4. Inspection
T y p e Reproduction
Indicate whether Government S o u rce
Vellum
i n s pection is req u i re d at facto r y prior to
Prints (Paper)
s h i pment.
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Electrical OperatorCD
Technical Manual: NAVSH I P S No. 0962-0 1 45000. This booklet p e r M I L- M- 1 507 1 . When
req u i red, o rder BVR-TM-576.
M o u nts to front of breaker for remote o pe ra­
tion. 450 volt Ac rating utilizes a transfo r m e r
Dimensions: Pages 57, 58, 59
i n conjunct i on w i t h a 1 20 volt m otor. I f auto­
matic reset is d e s i red, o rder t he circuit
Characteristic Curves : Pages 60, 61
breaker with o pt i on a l Automatic Reset Switch
(See Opti o n a l Additions)
CD Can b e field mounted.
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Rating
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1 20 V A-c
450 V A-c
Style
Number
National
Stock
N u m be r
1 37 1 D3BG06
1 37 1 D3BGOB
None
Assig ned
Westi nghouse E l ectric Corporation
Distribution a n d Control B u s i ness Unit
E l ectrical Components Division
Pitts b u rg h , Pen nsylvania, U . S.A. 1 5220
® Breaker can be supplied with either shunt trip or
undervoltage release, but not both.
July 1 991
J u ly 1 99 1
S u persedes Technical Data 29-220,
pages 57-58, dated April 1 99 1
M a i led to: E. D, C/29-200A
Types AOB-A1 601 , N O B -A1 6 0 1
500- 1 60 0 Amperes; 500 Volts, 6 0 H z. Ac.
7 5, 0 0 0 Am peres I .C.
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8
Westinghouse Electric Corporation
Distri bution a n d Control Busines s U n i t
E l ectrical Com pon ents Division
Pittsburgh, Pennsylva n i a , U . S .A. 1 5220
Technica l Data
29-220
Page 57
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AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
A O B a nd N O B C i rcuit B reaker Frame O u t l i ne D i mensions
N OB-S a m e except for t r i p u n i t n a mepl ate.
Front Panel Cutout
ar
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<t. of Breaker
}..+---+- Removable Handle
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Extension Supplied
with Breaker
ca
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44
Line
tri
14 �
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Mountmg
Screws
When undervo ltage
release and auxiliary
switches are provided
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W i r i n g D i agrams
AOB
NOB
r rn i c r)-r; r ::���r\ r
Line
When shunt trip and
auxi liary switch
are provided
Line
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L- - - -- - - - - - - - -
LOOd
18 Inches
Long
Load
900J442
Sheet
.
:
;_ _
- - - - - - - - - - - - - -
Reproduced From Drawing
2J
1
of 4
___
--·
__ _
--·
_ _ _ _ _ _ _ _ _ _ _
; Undervoltage
;
Releose 2 Leods
j 18 Inches Long
r-r
�f�E�t·
)
/
�
"I )
�
18 1nches
Long
::J;
Tnp
: ; 2Shuni
L° d
'
I
�:
18 ln h s
Long
'
Note : The auxil iary switch must be used with each shunt trip . Con nect one
side of shunt trip in series with "A" contact ( c l osed when breaker is
closed) of auxil iary switch when connecting to power supply.
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Technical Data
29-220
Page 58
M o u nt i n g Base O u t l i n e D i mensions
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Top View
���------�
1 ==rr-=�=�=-=--=-'fi'
an
Sw1tchboord
Bock Panel
0 0 0
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S w 1 t c h boord
Moun t m g Angle
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Side View
� -16 Top 4 Hol es
tri
( Breaker Mou nt1ng )
lec
Front View
C utout
F ront Panel Cutout
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For Switchboard Back Panel
Reproduced From Drawing
It_ of
Breaker
M ou n t i n g Base
With cable connectors style 505C706G03
lug capacity�four 600 M C M cables per l u g
O u t l t n e of
Mount1ng
Bose
900J442
Sheet 3 of 4
J u ly 1 991
.c
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Technical Data
29-220
Westi n g house E l ectric Corporation
Low Voltage Breaker D ivision
Beaver, Pennsylvania 1 5009
Page 1
5 to 1 60 0 Amperes
1 50 0 to 1 00,000 Amperes I. C .
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
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October, 1 97 8
Supersedes Price List 2 9 - 220,
pages 1 - 2 , dated February 1 7, 1 969,
and Supp. page .01 dated
September 26, 1 974
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M a i led to: E, C/1 905/PL
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Selector G u id e for A p p roved Navy C i rcuit B reakers
Breaker
Type
tri
ALB-1
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M I L- C - 1 7588
I
H i -S hock
Spec
M I L-S-901
I I
No.
Ampere
of
Rating
Poles
1
5-
50
M I L- C - 1 7588
M I L-S-901
1
AOB-A100
M I L- C - 1 7361
M I L-S-901
2. 3
1 5- 1 00
N OB-A100
M I L-C-1 7361
M I L-S-901
2, 3
1 00
AOB-A101
M I L- C- 1 7361
M I L-S-901
3
N LB-1
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I
Specification
50
1 5- 1 00
1 25 V De
1 25 V Ac
1 25 V De
1 25 V Ac
250 V De
500 V Ac
I
I nterruptmg
Rating,
Amperes
2,500@
5,000@
I
Tripping
Elements
Thermal
M a gnetic
None
1 0,000
1 5,000
I
Page
5
5
Thermal
Magnetic
11
None
11
500 V De
250 V De
250 V De
500 V Ac
1 0,000
1 5,000
Thermal
M agnetic
15
500
250
250
500
None
15
1 5,000
20,000
Thermal
Mag netic
23
None
23
Thermal
Magnetic
29
None
29
N OB-A101
M I L-C-1 7361
M I L-S-901
3
AOB-A250
M I L- C - 1 7361
M I L-S-901
2, 3
1 25 - 250
N O B-A250
Ml L-C-1 7361
M I L-S-901
2, 3
250
AOB-A600
M I L- C - 1 7361
M I L-S-901
2, 3
250- 600
N O B-A600
M I L- C - 1 7361
M I L-S-901
2, 3
600
250 V De
500 V Ac
AOB-LF100
M I L-C-1 7361
M I L-S-901
3
1 5- 1 00
500 V Ac
1 00,000
A O B - L F250
M I L-C-1 7361
M I L-S-901
3
1 25 - 250
500 V Ac
1 00,000
AOB-A1 601
M I L- C - 1 7361
( M odified)
M I L- C - 1 7361
( M odified)
M I L-S-901
3
500-1 600
500 V Ac
75,000
M I L-S-901
3
1 600
500 V Ac
N O B -A1 601
1 00
I
Voltage
Rating
V Ac
V De
V De
V Ac
250 V De
500 V Ac
250 V De
500 V Ac
@ A 5 a mpere breaker has an interrupting rating of 1 500 a mperes Ac or De.
20,000
30,000
Thermal
M agnetic
Fuses
Thermal
Magnetic
Fuses
Thermal
Magnetic
None
34
35
39
39
.c
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Tec h n ica l Data
29-220
Page 2
ua
ls
Desc r i pt i o n
These molded case N avy circuit breakers
provide both overload protection for c o n ­
ductors and short circuit protection f o r a l l
circuit elements such as conductors, motors
and starters. They also serve as manual dis­
connecting means as well as circuit pro­
tectors.
A l l Westi nghouse circuit breakers in this
Technical Data meet appl icable N avy spec i­
fications for " h i -shock". These manually
operated breakers are rated from 5 to 1 600
am peres with interrupting ratings from 1 , 500
to 1 00,000 am peres. (See "selector gu ide"
on page one for ratings and N avy speci­
fications.)
an
O pe r a t i n g H a n d l e
S h own I n
=1---��!--- I..Jtt Position
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Des i g n Features
Westingh ouse Navy circuit breakers reta in
a l l the features of standard commercial type
AB De-ion breakers listed on the next page
u nder "standard features." B u ilt to N avy
specifications, they i ncorporate the follow­
ing N avy requirements:
S pecific Navy Features
@ A n t i - S hock
Device: I nertia weight
over center pole holds trip bar i n latched
position u nder shock conditions but does
not prevent thermal or magnetic trip u nits
from functioning on overload and short
circuits.
@ C a l i b rated for 5o· c : All
ar
,------- ------,
L------ T'er� m i na i S t u d s
tri
Navy brea k­
ers are cali brated for shi pboard installation
at 5o·c ambient.
Front view ot assembled AOB -A250 Navy circuit breaker. Note that the shock resistant, glass
alkyd material ( MAI-60) used for housing and cover i s l i g ht gray, while standard molded case
breakers are black.
lP
Resistant M o lded Case:
Housing consists of rear base section and
cover molded of glass alkyd material. This
material, identified as M A I - 6 0 or M A I - 30,
has very high mechanical strength (shock
and impact resista nce), is both fire and
moisture- resistant and provides excellent
diel ectric characteristics.
ca
G) S h ock
@ I nterc h a n g ea b l e Trip U n its: All ther­
lec
mal and magnetic trip u n its i n AQB circuit
breakers are encased i n sealed, self-con­
tained u n its that are interchangeable with
other trip u n its of different a mpere rati ngs
within the same frame size. @
@ P l u g - i n C o n nectors: All AQB break­
w
.E
ers are designed for easy p l u g - i n installa­
tion. P l ug - i n type connectors are built into
the base of the breaker for use with molded
mounting blocks complete with studs. For
front connection, pressure-type cable ter­
minals are used instead of p l u g - i n con­
nectors. ® ALB breakers have a clamp ter­
minal on the line end to receive panelboard
bus stab projections.
@ Interchangeable trip units are not available i n the
ww
A101 or A L B- 1 .
@ All A 1 01 breakers have plug-in connectors. Front
or rear connectors determined by mounting base
selected.
Rear view of AOB-A600 breaker showing terminal blocks f o r switchboard mou ntin g . (Terminal
block attached at l i ne end of breaker and removed from load end.)
October, 1 97 8
Su persedes Price List 2 9 - 2 2 0 ,
pages 1 - 2, dated February, 1 969
5 t o 1 60 0 Am peres
1 50 0 to 1 00,000 Am peres I. C.
Tec h n ical Data
29-220
Page 3
AB DE-ION®
Circuit Breakers for
Naval Shipboard U se
ua
ls
M a i led to: E, C/1 905/PL
Standard Features
G) Co rrosi o n - Resistant:
an
All parts are
specially treated to resist corrosion. Fungus­
moisture resistant treatments for severe at­
mospheres are available as modifications.
@ Positive
Positi o n I n d icatio n : Posi­
tion of handle always indicates ON, O F F, or
TRIPPED.
tM
@ Free
Bearing S u rfaces: Dissimilar
metals are used to prevent bearing wear and
eliminate sticking.
@ De-ion
@ S i lver A l loy C o ntacts: Special silver
ar
ca
alloy contacts prevent sticking and weld ing,
increase contact l ife and insure low resis­
tance when carrying f u l l - rated load.
-iii'+---
lP
Arc Quenchers : This West­
inghouse development consists of a series
of grid plates mou nted in parallel between
s u pports of i nsulating material. The slots i n
t h e steel plates are directly over t h e contacts
and draw the arc from the moving contact
u p i nto the divided chamber where it is con­
fined, divided, and exti ngu ished.
@ Q u i c k - M a ke ,
tri
Q u i c k - B re a k O v e r
Center Tog g l e M ec h a n i s m : Provides
quick, positive action in opening and c los­
ing of circ uits, prevents "teasing" of con­
tacts and reduces contact wear.
Arc C h utes
M oving
Contact
Operat i n g
Mechanism
T r i p U n it
Trip U n it
R e m oved
(j) C o m p lete l nterpole B a rriers: I nsure
internal
occur.
@ Common
f l a s h overs
when
fa ults
lec
a g a i nst
Trip: Two and three- pole
u nits have insu lated common trip bar that
opens all poles simultaneously when an
overload occurs o n any one, thus eliminat­
ing possibil ity of single- phasing.
.E
® Tested
Accuracy: All tripping mem­
bers have ground and polished latch sur­
faces heat treated to prevent galling or later
distortion. All parts are assembled in tem ­
perature-controlled atmosphere t o assure
· correct cali bration and perfect mating. Each
breaker is thoroughly tested.
w
@ Factory Sealed:
ww
Smal ler breakers are
factory sealed to prevent tampering with
calibration. I nterchangeable trip u n its are
individually sealed.
.c
om
e
West i ng h ouse Electric Corporat ion
Low Voltage Breaker D ivision
Beaver, Pennsylvania 1 50 0 9
Breaker Front
Cover R e m oved
Arc Chute
Rem oved
----ii;;
.c
om
Technical Data
29-220
Page 4
G eneral O rd e r i n g I nformat i o n
W h e n ordering Westinghouse N avy c i rc u it
breakers, consult the check list below to
make sure you have provided correct i nfor­
mation. You should specify:
ua
ls
A p p l ication
Desi g n ed primarily for circ u it protection, Westingh ouse Navy circuit breakers are used i n
l i g hting a n d power panels, switchboards, distribution centers and l o a d centers aboard
ship. The photograph below i l lustrates the use of molded case circ u it breakers i n a typical
N avy switchboard.
1 . Quantity, Westing house Style N u mber
and Federal Stock N u mber of:
a . Complete breaker or frame, trip u n it,
fuses (where required) and/or attachments
where ava i lable.
b. Plug-in mounting block or front con­
necting cable term inals.
an
c . Spare breakers or trip u n its. ( u sually one
req u i red for each ten u n its or fraction there­
of of each cu rrent rati n g . )
d . I n struction books.
tM
2 . Shi pment:
Specify transportation mea ns, method of
packaging and preservation, and req u i red
shi pping date.
.E
lec
tri
ca
lP
ar
3 . Drawings:
Specify qu antity of outline or master plan
draw i n gs required.
ww
w
Westing house Electric Corporation
Low Voltage Breaker D ivision
Beaver, Pen nsylva nia 1 5009
4 . I nspection:
I ndi cate whether Navy i nspection is re­
q u i red at factory prior to shipment.
Types ALB- 1 , N LB - 1 , 1 25 Volts Ac a n d De,
50 Am peres M a x i m u m , 5000 A m peres I . C.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
M a i l e d to: E, C/1 905/PL
Net Prices Refer to Price List 29-020
Circuit Breakers - N et Weig ht: 8 oz.
Ampere
Rating
Type
____
A.LB-1
ALB-1
ALB-1
ALB-1
ALB-1
5
10
15
20
25
ALB-1
ALB-1
ALB-1
ALB-1
N L B- 1 ®
tM
ar
ca
-- - - -
--
lec
The N LB-1 breaker i s the non-automatic de­
sign of the ALB- 1 . Si nce the tripping e l ement
i s o m itted, it i s u sed as a m a n u a l d i scon nect.
.E
N o n-adjustable thermal a n d magnetic trip
elem ents a re factory ca l i brated a n d sea l e d .
The t r i p p i n g element i s counterbalanced t o
reduce poss i b i l ity of accidenta l t r i p p i n g u n d e r
s h ock. A l l parts are g i v e n a corrosion­
resistant treatment in complia nce with
M I L-E-9 1 7 .
ww
w
Plug-in l i n e connections s i m p l ify p a n el board
m ounting. A c l a m p type terminal o n the l i n e
end of t h e breaker provides p l u g - i n conn ec­
tion to bus stabs in panel board mou nting
blocks. For front con nection, there i s a p res­
s u re type terminal on the load end of the
breaker.
Test report number 5530-5.
------
Single breaker, front panel supported
Single breaker, surface mounted
Two breakers, front panel supported
De, sing le phase® and part ( 1 /3) of
combination for 3-phase®
Part (2/3) of combination for 3-phase
application®
3-phase panel application®
De, single phase® and part ( 1 /3) of
combination for 3-phase®
tri
H i g h sh ock Navy ALB-1 circuit breakers are
designed for s h i pboard protecti on of single
phase Ac a n d De circuits o r th ree-phase Ac
ci rcuits when breakers are con nected by han­
d l e yokes for 2 a n d 3-pole operati on.
454D507G06
454D507G07
454D507G08
454D507G09
454D507G 1 0
H 5925-00-549-5360
H 59 2 5-00-549-5362
H592 5-00-546-3076
H592 5-00-549-5365
H 5930-00-548-7068
Mounting Blocks
Type
I nterrupting Rating
1 0-50 Amp U n its: 5,000 Amps Ac and 2500
Amps De
5 Amp U n i t : 1 , 500 Amps Ac or De
Nationa I
Stock No.
Style
Number
=-:"c
�
---454D507�
G�
0�
1------H 5925-00-204-l:-:4�94�-454D507G02
H5925-00-204-7488
H 5925-00-549-5366
454D507G03
454D507G04
H 5925-00-50 1 -5051
454D507G05
H 5925-00-549-5359
Special ALB-1 and NLB-1 Breakers
S i m i l a r to a bove except to have a 1 A- 1 B a u x i l i a ry switch rated 5 a m p resistive, 250 volts Ac o r
3 0 volts D e m a x . ( N ot s u b m itted f o r Navy a p p roval, a n d does not u s e breaker rr0unting
blocks). Order by description .
lP
ALB-1 Navy circuit
breaker. Note clamp
type stab terminal for
panelboard mount­
ing at line end and
pressure type termi­
nal for front connec­
tion at load end.
30
35
40
50
50
Page 5
an
ALB-1 and NLB-1 Breakers
Specification: MIL-C-17588
5-50 Amperes, 60 or 400 Cycle
1 25 Volts Ac o r De S i ng l e Pole
.c
om
May, 1 980
Su persedes Price List 29-220, pages 5-6
dated October, 1 978
Tech n ical Data
29-220
ua
ls
Cl
Westinghouse Electric Corporation
Low Voltage Breaker Division
Beaver, Pen n sylva n i a 1 5009
Top view of typical ALB-1 panelboard mount­
ing block. (Style 454D509G04)
Style
Number
Net Wt.
in Lbs.
454D509G03
National
Stock No.
None Assigned
None Assigned
None Assigned
454D509G04
H 5925-00-20 1 - 7 1 77
454D509G05
H 5925-00-201 -7 1 75
-- ---
--- --- -
454D509G01
454D509G02
454D509G06
H5925-00-544-5980
454D509G08
H5925-00-201 -7 1 76
v.
v.
'!,
' 13
' 13
2 /3
Individual Reproductions: When req u i red, reproductions of master d rawings, outl i n e draw­
i ngs and certification sheets ca n be o rdered a s fol l ows:
Description
Full size phoiolithic traC.i ng of m-Bster drawillg on crO.n oflex (rflv�Outline and d rilling plan on cronoflex (mylar)
Certification data on cronoflex (mylar)
Van Dyke negative of items 1 and 2
Reproductions of items 1, 2 or 3
Item
1
2
3
4
5
Drawings Available: M a ster drawing
900J396; breaker outl i n e 31 4C2 1 8 ; mou nting
blocks 455D791 a n d 369D592.
-
---
-
Technical Manua l : N avships No. 362-2228.
This booklet per M I L-M - 1 507 1 . When re­
qui red, order BVR-TM-378.
Handle Yokes: Provide i nterlocking of two or th ree one-po l e breakers for sim ultaneous oper­
ation. Individual pole tripping i s obta i ned without normal trip i n d icating (center) posit i o n .
_____
Style Number
Poles
2 -- -
2078508H01
2078508H02
3
® Tripping element o mitted for manual disconnect. Letter
"'N"' hot stamped in white on handle.
® I n De or single phase panel applications, basic pattern is
one molded base accommodating four single-pole break­
ers. (See pages and 8.)
7
@
®
_
__
National Stockc_Ncco=-c.
H5925-00-202-0938
H 5925-00-296-8926
In 3-phase application where basic pattern is three
molded bases, one 454D509G04 and two 454D509G05 are
required, each base accommodating two breakers per cir­
cuit (See page
For 3-phase application where basic pattern is one
molded base accommodating up to six breakers or two
breakers per circuit (See pages and 9.)
7.)
8
.c
om
Cl
Tech nical Data
29-220
Page 6
Outline Dimensions ALB-1 Breaker a n d M o u nting B l ocks
Breaker Outline
Single Base, Front Panel Supported
(454D509G01 I
X
ua
ls
2
Screws, steel,
. 1 90-32
3 fur n1shed w1th
front cover
. 1 90-32 Top ( 2 holes)
lock washers for secun n g to panel
8}-{i��'ffi---=��'"'-<t
f
an
Base, breaker and
mou n t i n g p l a t e
2
k
3
··
�2 �
�._I_ 2 .2.
16 -
f-- 1 @
i
5
32
Standard Breaker
Ampere
---- �
-I
2
Special Breaker with Auxiliary Switch
13 13
�
//l.
�32
Breaker escutcheon and moun ling screws
2 - . 1 90-32 X 3
Base
m o u n t i n g screws
J..
32
lec
Critical d i mensions of
stab and mounting c l i p
Mounting of Front Panel Supported Bases (Side View)
tri
ca
Single Base Surface Mounted (454D509G02)
__..... 32 64 �
Rating
ar
.l.....__l,
slot
lP
Ampere rat1ng
tM
Two Breaker Base, Front Panel
Supported (454D509G03)
Mounting o f Surface Mounted Base (Side View)
<i. Breaker escutcheon
ww
w
.E
Critical d i mensions of
stab and mounting c l i p
3 64
!.?
3 Pole Handle Yoke (207B508H02)Cj
. 234
--;-c- .--1::1
�
-fi...
2 Pole Handle Yoke (207B508H01 ) Cj
2-. 1 90-32
Base mounting
screws
C9 Style number changed since previous issue.
�
long
. 234
r---- 1 32 --------j
�J
. 1 95
15
_ _ _ _
CJj
__
CJJ
Technical Data
29-220
Page 7
October, 1 978
S u persedes Price List 2 9 - 2 20, pages 7 - 8,
dated February 1 7, 1 969
Types A L B - 1 , N L B - 1 , 1 25 Volts Ac and De,
5 0 Amperes Maxi m u m, 5000 Am peres I.C.
A B L-1 B reaker M o u nt i n g B locks, Continued
1 P h a se
( � x 1 Copper Bus not Supplied)
A p p l ication in De a n d 1 P hase P a n e l s
Bus Bar Drilling for De and
( 2 Separate Bases shown. Basic Pattern is
1 Molded Base Accommodating 4 Single Pole Breakers)
an
B u s bar C
Busbor A
P a n e ls
Busbor A
3
Phase P a n e l A p p l i cat ion
F o r Two B reakers per load C i rc u i t
lP
454D509G04
Front View
ar
tM
Stab Bose
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Mailed to: E, C/1 905/PL
.c
om
8
West i n g house E l ectric C orporati o n
Low Voltage Breaker Division
Beaver, Pennsylvania 1 5009
( B asic Pattern of Three Separate Mou lded
Bases can be Repeated for Longer Panel Boards)
ca
Bus bar 8 and stab bose
.E
lec
tri
Front View
B us B a r D r i l l i n g f o r 3 P hase P a n e l s
For Two Breakers per Load Circuit
(� x 1 Copper B us not Supplied)
Stab bose
mtg screws
I
2
Critical
d i mensions
of stabs and
mtg.clips
.190-32 Topped holes
w
Side View
O u t l i n e D i mensions for M o u n t i n g Bases
454D509G04 o r 454D509G05
ww
r-
� Diameter 2 cou n t e r bores � deep
a Dtometer _..--- -
6 1.4
2
holes
Front Vtew
.c
om
Tec h n ical Data
29-220
Page 8
D i mensions, Continued A L B - 1 B reaker a n d M o u nt i n g Block
1 Phase Panels
(2 Separate Bases shown. Basic Pattern is
1 Molded Base Accommodating 4 S i ngle Pole Breakers)
1 Phase
1 Copper Bus not Supplied)
Bus B a r D r i l l i ng for De and
x
( '.4
454D509G08
BusbarC "1 329 <t_
j_ r_
3
6
'
64 :
I ' -'
Busbar A ....._
<t_
31I6I
35
64
- --- -_2 _ L
2 �-
T
an
.I....!-.:+:..-++-+-+-
.190-32
Tapped holes
� ­
2
I
3 Phase Panel A p p l ication
454D509G08
Stab base
_ and mounting
I
2
32 -f-H-t-----;-Jf-7 <t_
I
4
tM
454D509G08
Panels
ua
ls
A p p l ication i n De a n d
B u s B a r D r i l l ing for 3 Phase Panels
For Two Breakers per Load Circuit
('.4 x 1 Copper B us not Supplied)
For Two B reakers per Load C i rc u i t
tri
ca
lP
ar
( B asic Pattern of Three Separate M o lded
Bases can be Repeated for Longer Panel Boards)
lec
454D509G05
.E
6� Thick steel . 1 90-32Thd.
�
8 usbarC
B
Side View
'
1-
us bar B
.190-32 /
Tapped holes
3!
t
'
1
2a7
2!
.2
r
31
' •
�
- - - - �
'
2 f* *
2
� Busbar
A
r
O u t l i ne D i mensions for M ou n t i n g Bases ( S i d e View)
ww
w
454D509G0 5o r 454D509G08
O ut l i n e D i m e n s i o n s for M ou nt i ng Bases
454D509G05o r 454D509G08
454D509G05
.c
om
October, 1 978
S u persedes Price List 29- 220,
pages 9 - 1 0, dated February 1 7, 1 969
Westi n g h o u se Electric Corporat i o n
L o w Voltage B reaker D ivision
Beaver, Pennsylvania 1 5009
Tec h n i c a l Data
29-220
Types A L B - 1 , N L B - 1 , 1 25 Volts Ac, De;
50 Amperes Maxi m u m, 5000 Amperes I.C.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a i led to: E, C/1 905/ P L
Page 9
A L B -1 B reaker M o u n t i n g B l ocks
3 Phase Panel Appl ication
( For One or Three Breakers per Load Circuit)
an
B u s Bar D r i l l i ng for 3 Phase Panel A p p l i cation
For One or Three Breakers per Load Circuit
( !4 x 1 Copper B us not Supplied)
us ba
r
B
tM
B
ca
lP
ar
Stab base
and mig.
scews
O u t l i n e Dimensions for M o u nting Base
454D509G06
r
�
2 32
'
11:
31
64
6t
R, oiameter 2hales
7
/
"<..
� Diameter 2 counter bore s /
� deep
.E
Handle pivot
ct.
Handle pivot
ct.
.';
Front View
1� Diameter megger
holes if required
Front Panel Cutout
Breaker
Load End
ct.
w
ww
454D509G0 6
.190-32 Tapped holes
3
-- a
O utline of Base ( S ide View)
454D509G 04, 454D509G05,
454D509G06, 454D509G08
"·
-�
tri
--r.
lec
3
8
I
I
I
For 1 three pole circuit
Load End
For 1 Single pole circuit
.c
om
Tech n ical Data
29-220
Page 1 0
�
Characteristic Time- Current
4
2
Curve
I
40
20
10
\
I--t-Characteristic Time- Current Curve
f---fInstant aneous Tripping Occurs 320
Amperes or 20 Times Element Rating
f---fMore Than
Whichever is Less . .
.050 Sec 800 Amperes Less Than .200 Seconds
\
\
f:=�
-, \
\ \
I
"
an
�
"-... I'..
1'\. I'.
.......
......._
1\
'
Minimum ....-
4
2
I"
.....
I
6
4
4
Times Rated Current
5
6 7 6 9 10
20
C h a racteristic Tem peratu re­
Rating C u rve
Line
c;
a:
0
E
0
z
�
95
90
./
85
80
75
70
/
100
90
v
/
80
70
v
60
/
/
Ambient Temperature, •c
50
40
30
20
.E
�
100
./
w
Westinghouse Electric Corporation
Low Voltage E}reaker Division
Beaver, Pennsylvania 1 5009
ww
./
lec
"'
.:
110
105
/
{
{
tri
1 15
50
70
W i r i n g D i a g ra m
125
120
30
"
.....
10
0
Load
Type ALB-1
200
90 100
ca
2
tM
0
/" Maximum
ar
0
r-..
1\
lP
1'\.
I
0
M I L- C - 1 7588
This specification incl udes the A L B - 1 type
circuit breaker. It req uires that this breaker
carry 1 1 5% of current rati ngs for more than
one hour and that the primary elements i n i ­
tiate tripping a t 1 38% rated current with i n
one h o u r a n d at 200% i n 1 0 t o 1 00 seconds.
A tripping characteristic of the primary
element is based on the current flowin g
through a l l poles i n series and i n a n a m bient
of 5o· c. The minimum instantaneous trip
setting shall be 320 am peres or 2 0 times the
element rating, whichever i s less, and trip
at not less than .050 second. At 800 a m ­
peres the breaker must trip at . 2 00 second
or less.
ua
ls
{
C h a racterist i c C u rves A L B - 1 Breaker
C h a racteristic T i m e- C u rrent C u rve
300
1/ Draw
Out
Connection
�
Line
1
onary
/ Stati
Connect1on
�
Load
Type NLB-1
500
Types AOB-A 1 00, N O B -A 1 00, 250 Volts De,
500 Volts Ac, 1 00 Amperes M a x i m u m ,
1 5,000 Amperes I . C .
Trip u n its with c u rrent ratings o f 1 5, 25, 50,
7 5 and 1 00 can be q u ickly i nterc hanged
and a conversion kit is available to change
a 3 - pole, 500 volt AOB -A1 00 to a non­
automatic N QB - A 1 00 circuit i nterrupter.
N O B - A 1 00 breakers have a maxi m u m con­
tinuous c u rrent rating of 1 00 a m peres, but
they are used only as disconnects since
there is no automatic opening device.
A O B -A1 00 a n d
N Q B -A1 00 B reakers
an
Note: A Q B -A1 00 and N O B - 1 00 b reakers
a re sold for replacement o n l y . They a re
no longer on Navy Qualified P roduct
l i st .
Specificati o n : M I L- C - 1 7361
1 5 - 1 00 Amperes
500 Volts Ac and 250 Volts De
Two or Three- Pole
tM
Those breakers (and interrupters) designed
for De motor c i rc u its and for Ac feeder cir­
cuits (designated with a " B F" i n amp rating
column of price table) have fixed i n stan­
taneous settings of 600%-700% conti n uous
c u rrent ratings. Those having a mag netic
element set to trip at 1 200% - 1 400% are
applied on Ac motor circu its. Breakers de­
sig nated with " B E" are cali brated for De
appl ication.
I nterrupting Rating
1 5,000 Amps Ac and 1 0,000 Amps D e
lP
ar
AQB-A1 00 circuit breakers a r e designed for
use i n l i g hting and distribution panelboards
and switchboards for the protection of feed­
er a nd motor branch c i rc u its.
Net P rices See Price List 29-020
H igh
Two-Pole, 250 Volts De
1 5- B E
25-BE
50- B E
75-BE
1 00- B E
90
1 50
300
450
600
1 05
1 75
350
525
700
Two-Pole, 500 Volts Ae
90
1 05
1 80
21 0
1 50
1 75
300
350
600
700
900
1 050
1 200
1 400
Non-Automatic
1 764
1 764
1 764
1 764
1 764
676
677
678
679
680
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
681
682
683
684
685
686
687
688
1 05
1 75
350
525
700
1 764
1 764
1 764
1 764
1 764
689
690
691
692
693
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
694
695
696
697
698
699
700
701
702
703
704
.E
90
1 50
300
450
600
ww
w
90
1 05
1 80
210
1 50
1 75
300
350
350
300
600
700
450
525
900
1 050
600
700
1 200
1 400
Non-Automatic
National
Stock N o .
Style
N u m ber
National
Stock No.
. . . . . . . . · · · · · · · ·
1 764
1 764
1 764
1 764
1 764
638
638
638
638
638
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
1 764
1 764
1 764
1 764
1 764
640
641
642
643
644
H5925-00-248-1 1 04
. . . . . . . . . . . .
H 5 925-00- 248-1 1 08
None
None
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
638
638
638
638
638
638
638
638
None
None
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
645
646
647
648
649
650
651
652
................
H5925 -00-629-0975
................
H5925 -00-628-0695
H 5 925-00-248-1 078
H 5 925-00-248-1 082
................
1 764
1 764
1 764
1 764
1 764
639
639
639
639
639
H5925-00-25 8-2945
H5925-00-258-2945
H5925-00-258-2945
H5925-00-258-2945
H 5 925-00-258-2945
1 764
1 764
1 764
1 764
1 764
653
654
655
656
657
H 5925-00-608-0972
H5925-00-553-9745
H5925-00-383-381 4
H5925 -00-248-1 371
H5925-00-608-0973
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
639
639
639
639
639
639
639
639
639
639
639
H5925-00-258-2945
H5925-00-258-2945
H5925-00-258-2945
H 5 925-00-258- 2945
H5925-00 - 258-2945
H5925-00-258-2945
H 5 925-00-258-2945
H 5 925-00-258- 2945
H5925-00 - 25 8 - 2945
H 5 925-00-258- 2945
H 5 925-00-258-2945
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
1 764
658
659
660
661
662
663
664
665
666
667
668
H5925-00-502-671 9
H5925-00-248-1 453
H 5 925-00-21 5 -3758
H 5 925-00-248-1449
H 5 925-00-248-1442
H5925-00-51 8-5979
H 5 925-00-248-1436
H5925-00-248-1 437
H5925-00-248-1429
H5925-00-588-2453
H5925-00-699-1 1 1 1
.
.
...... . . .
.
H5925-00-399-81 20
.
. .
.
. . .
.
.. ..
.
.... . . ...
.
. .
'
.
H 5 925-00-399-81 27
Three-Pole, 500 Volts Ae
1 5- B F
1 5- B
25-BF
25-B
50- B F
50-B
75-BF
75-B
1 00 - B F
1 00 - B
1 00@
Trip Unit Only
Style
N u m ber
Assigned
Assigned
Assigned
Assigned
Assigned
Three-Pole, 250 Volts De
1 5- B E
25-BE
50- B E
75-BE
1 00 - B E
A O B - A1 00
None
None
None
None
None
lec
1 5- B F
1 5- B
25- B F
25-B
50-B
75-B
1 00 - B
1 00@
I
National
Stock No.
ca
Low
Breaker Frame Only@
Complete Breaker@
Style
Number
tri
Instantaneous
Trip Setting
in Amperes
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a i led to: E, C/1 905/ P L
Cont.
Ampere
Rating
Tec h n i c a l Data
29- 220
Page 1 1
October, 1 978
Supersedes Price List 2 9 - 2 20,
pages 1 1 - 1 2, dated J u ly 1 , 1 97 4
.c
om
8
Westi n g house Electric C o rporat i o n
Low Voltage Breaker Division
Beaver, Pennsylvania 1 5009
...
. . .
.
.
.. . . ....
. .. . .
. . . .
.
.
.
H 5 925-00-658-9609
H 5 925-00-265-9474
. . . . . . . . . . . . . . . .
H5925-00-396-2339
.
..... .....
.
.
..
.
H 5 925-00-396- 2345
.
.
.
. . .
.
.
...
. . .
H5925-00-396-2352
H5930-00-259- 9440
. . . . . . . . . . · · · · · ·
. . . . . · · · · · · · · · · ·
N ote: B reakers with ratings other than those g iven o n this page are considered special and full description data must be provi ded .
@ Styles listed include sli p-type connectors for rear connections. Order front termi n a l connectors separately if
required. No additional charges for front connectors ordered with breakers or frames.
@ Type N Q B -A1 00 non-automatic. To convert 3-pole AQB breaker to NOB breaker. order style 1 764 668 only.
.c
om
Cl
Technical Data
29-220
Page 1 2
Front C o n nected B reakers
For the load ends of panel board breakers and for other front terminal appl ications, pressure
connectors should be ordered.
Prices given below apply only when connectors are ordered separately. When breakers and
the requi red l ugs are ordered simultaneou s ly, these lugs will be su pplied without charge.
N3-N14
N23-N40
N50-N75
I
I
N avy
Cable Size,
Max.@
1 4,340
3'8,91 0
75,780
@ Circular mils area.
I
I
I
Description
I
One Pressure Connector
One Pressure Connector
One Pressure Connector
I
Style
N umber
I
1 763 660
1 763 661
1 763 662
National
Stock N o .
F u n g u s - M o i st u r e R e s i s t a n t T r e a t­
m e nts: (Jan -T- 1 52, J a n - C - 1 73 or M I L-V1 73 ) if specified, contact Westinghouse.
External parts are coated; trip u n its are not
treated.
None Assigned
None Assigned
None Assigned
Description
Style
N umber
National
Stock No.
2
3
2 or 3
M o u nting
Mounting
Mounting
One Stud
1 764
1 764
1 764
1 631
None Assigned
None Assigned
H 5 940-00-643 - 7 1 94
H5940-00-501 - 9 1 20
ca
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Tri p U n i t
2 - Pole AOB
2 - Pole N O B
3 - Pole AOB
3 - Pole N O B
lP
C o m p l ete B reaker
2 - Pole A O B
1 0.00
8.75
2 - Pole N O B
3 - Pole AOB
1 0.75
3 - Pole N O B
9.50
tri
N et Weight, Lbs.
Ter m i n a l M ou n t i n g S u p ports ( Set of
Two )
Frame
2- Pole Mounting
2 - Pole AOB - 7.375
Block Assembly 2.75 2 - Pole N O B - 7.375
3 - Pole M o u nting
3 - Pole AOB - 7 .875
Block Assembly 3.25 3 - Pole N O B - 7.875
ar
N umber
Poles
675
674
240
442
S p a re Parts Boxes: Per M I L - B - 233:
After determining box size o r n u m ber of
spare trips to be stored therein, contact
Westi nghouse for quotation.
Tec h n ical M a n u a l N avships 362-081 9p e r M I L- M -1 5071 : When req u i red, specify
I B - 29-062-CIA.
tM
Switchboard M ou n t i n g
Com plete breakers and frames incl ude mou nting hardware. Female slip connectors are
mounted i n the breaker base for plugging onto stud projections of terminal mounting
block assemblies. Order one m o u nting block assembly for each end of the breaker.
Block Assembly
Block Assembly
Block Only
Assembly - Complete with 4 N uts
M e c h a n i c a l I nterlock: When a mec han ­
ical i nterlock (switchboard use) is desired
for a pair of breakers. Order by description.
( N ot submitted for Navy a pprova l ) .
an
Cable
Range
Additions
H a n d l e Lo c k : When specified, order style
1 6 1 4 485. One furnished without charg e
p e r every 1 0 breakers, w h e n requested.
ua
ls
A Q B -A1 00 a n d N Q B - A1 00 B reakers, Continued
- 2.625
- 1 .3 7 5
- 2.875
- 1 .625
I n d i v i d u a l R e p roductions: When re­
q u i red, reproductions of master drawings,
outline drawings and certification sheets
can be ordered as follows:
Item
2
3
4
5
Description
F u l l size photo lithic tracing of master
drawing on cronoflex ( mylar)
O utline and drilli ng plan on c rone­
flex (mylar)
Certification data on cronoflex
( mylar)
Van Dyke negatives of items 1 or 2
Reproductions of Items 1 , 2, or 3
D rawings Ava i l a b l e : M aster drawing
1 - J F - 630; rear con nected breaker outline,
d ri l l i ng and wiring diagra m 20- B - 2881 ;
front connected breaker outl i ne, d r i l l i n g a n d
wiring diagra m 30- B - 3837.
400 Cycle B reakers: R efer
house.
to
Westi n g ­
Tech n ical Data
29-220
Page 1 3
October, 1 978
S u persedes Price List 29- 220,
pages 1 3 - 1 4, dated February 1 7, 1 96 9
Types AQB -A1 00, N QB -A1 00, 250 Volts De,
500 Volts Ac, 1 00 Amperes Maxi m u m
1 5,000 Amperes I . C.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Ma iled to: E, C/1 905/ P L
tM
an
O u t l i n e D i mensions AQB-A 1 00 a nd N Q B - A 1 00 Breakers
ar
8
Visable a m p ratmg
interchangeable
D r i l l i ng P l a n
lP
trip u n 1t
F r o n t Cover C u t o u t
11
8
-
Min.slot
�Rod.
m1n
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16
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15
Load End
tri
ca
For Mou nting Panel ( Front View)
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om
8
Westi n g house Elect r i c C o rporat i o n
L o w Voltage Breaker Division
Beaver, Pennsylvania 1 5009
hole lor
handle lock and
098 Dta.
Mounttng bolls
and washers
(furnished with
termmal blocks)
(4) i-20xl� L G
S l otted hex hd s bolts
For 2·pole bkr center
pole current carrymg
parts are omilled
.c
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Cl
Tech n ical Data
29-220
Page 1 4
20
<f>
<1)
c
<1)
E
fCC
1\
5
4
3
2
\
�
Tri p at 600% to
700% Ratmg
I
\ \
10
�
-- Instantaneous
\
0
I I I
<f>
"D
c
0
u
<1)
(f)
I I
ro
�
l\1\\.
1
Percent Rated Current
"
0
II
0
N U' U'
/
400
1000
'
v
N
0
/
v
'/
200 0
0 0 0
0 0 0
lO Cl) 0
I I
O perat i n g C h a racteristics
Trip U n it Rating 1 5 - 1 00 Amperes
50oC Ambient - Cold Start, 60
Ac or De
�
-
- rI- -
300 0
I I
0
0
<t
U'
N , ,
0 0
300
1 5 00
I I
0
0
r<l
"'
800
'
0
0
N
-
60 0
'\.
0
0
1 00
� 20 0
Max1mum
5
4
3
2 ��
6
N VJ U1
ro
0.
Mm1mum
40
30
20
15
10
-
0 0
0 0
en o
N
0
0
0
r<J
U' "'
0 0
61-
N U' "
1--
Operating Cha racteristics
Trip U n it Rating 1 5 - 1 00 Am peres
50°C Ambient - Cold Start
400 Cyc l e Ac
Tri p U n i t R a t i n g
90
Cycle,
80
70
I
II
ca
60
50
40
30
tri
20
c
"
10 -�
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Westing house Electric Corporation
Low Voltage B reaker Division
Beaver, Pennsylvania 1 5009
Specification M I L- C - 1 7361
This specification covers all therm a l - ma g ­
netic AQB breakers. It requ i res t h a t they
carry 1 50% of current ratings for at least
one hour and that thermal ele m e nts i n itiate
tri pping at 225% rated cu rrent within one
hour and at 600% i n 2 5 seconds plus or
minus 25%. The instanta neous mag netic
settings for each conti n uous ratings are
based on i ntended appli cations. (Therm a l
tripping tests are conducted with a l l poles i n
series i n 50°C ambi ent; each pole i s tested
ind ivid ually to check mag netic settings.)
tM
\
0
0
Hours
ar
1
�
Seconds
an
- - - I nstantaneous
Tri p at 1200% to
1400% Rating
40
30
"'
400 Cycle B reakers
lP
:J
0
:r:
t'
5
4
3
2
ua
ls
C h a racteristic C u rve
A Q B -A1 00 B reakers
0.5
Foetor
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
To determ ine the tri p u n it rating to be used,
when the load current and a m bient are
known, m u ltiply the load current by the
factor obtained from this curve for the
known a m bient. The result will be the ideal
trip u n it rati n g . H owever, since trip u n its are
furnished only with standard ratings as per
N avy spec., select the standard trip unit
whose rating is equal to or one rating hig her
than the ideal rati n g .
Tec h n i c a l Data
29-220
Page 1 5
�
�
�
A O B -A1 01 a n d N O B - A1 01 B reakers
S pecification : M I L- C-1 7361
1 5- 1 00 Amperes
500 Volts Ac and 250 Volts De
3-Pole
an
tM
N O B - A 1 0 1 circuit breakers have a maxi­
mum conti nuous cu rrent rating of 1 00 a m ­
peres. They a r e used o n l y as discon nects,
since they do not i nclude an automatic
opening device.
AOB -A1 0 1 circuit breakers are designed for
use i n lighting and distribution panelboards
and for switchboards i n the protection of
feeder and motor branch circu its.
I
Net P rices See Price List 29-020
AOB-A101
AOB-A1 01
AOB-A1 01
AOB-A101
AOB-A101
AOB-A1 01
1 5 H Amp
2 5 H Amp
50H Amp
7 5 H Amp
1 00H Amp
1 00 G H Amp
Hi
National
Stock
N u m ber
M a g netic
Only
Style
National
Stock
N u mber
458D509G 1 1
458D509G 1 2
458D509G 1 3
458D509 G 1 4
458D509G 1 5
4 58 D 509G 1 6
458D509G20
H 5925-00-876-921 6
H 5 925-00-876 -921 7
H 5925-00-876-921 8
H 5925-00-876-921 9
H 5925-00-876-9220
.
. . . . . . . . .
. .
.
. . . . . .
458D51 1 G 1 1
458D51 1 G 1 2
458D51 1 G 1 3
458D51 1 G 1 4
458D51 1 G 1 5
...........
None
None
None
None
None
None
None
Assigned
Assigned
Assig ned
Assigned
Assigned
Assigned
Assigned
458D5 1 0G 1 1
458D 51 0G 1 2
458D51 0G 1 3
458D51 0G 1 4
458D51 0G 1 5
4 58 D 5 1 0G1 6
H 5925 -00-867-7328
H 5925-00-867-7329
H 5925-00-986-731 3
H 5925-00-986-731 4
H 5 925 -00-972-3000
. . .
. .
. . .
458D51 2G 1 1
458D51 2 G 1 2
458D 51 2 G 1 3
458D51 2 G 1 4
458D51 2 G 1 5
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
lP
I Lo
1 80- 2 1 0
300- 350
600- 700
900-1 050
1 200-1 400
1 200-1400
N o n-Automatic
75-1 05
1 25 - 1 7 5
250-350
375-525
500-700
500-700
.
.. . .
· · · · · · · · ·
· · · · · · · · ·
......
.
.
· · · · · · · . .
......
.... .
.
.
.
. . . . . . . . .. . . .
. .. ...
@ Instantaneous trip setting at 1 200-1 400% H i o r 500-700% Lo. Set at Lo position at factory.
® Complete b reaker does not include mounting bases. Type required must be ordered separately.
@) Front connected bases include cable lugs. Cover cable sizes 2 8 2 8 C M to 1 OO,OOO C M .
@ Only 3 -pole breakers are furnished. f o r 2 - p o l e applications make connections t o outside poles.
lec
AOB-A101
Thermal
Magnetic
Style
ca
400 Cycle
1 5 Amp
25 Amp
50 Amp
75 Amp
1 00 Amp
1 00G Amp
1 00 Amp
tri
AOB-A101
AOB-A1 01
AOB-A101
AOB-A1 01
AQB-A101
AOB-A101
N O B -A1 01
Instantaneous Trip Settin g @
Ac 60 Cycle
ar
Test Report N u mber: 541 9-43.
These breakers have adjustable i nsta nta n ­
e o u s trip settings o f "lo", "intermediate",
!
•
and "hi". The "lo" setting is 500%-700% of
continuous c u rrent rating. It is designed for
D e motor circuits and Ac feeder circuits. The
"hi" setting is 1 200%-1 400% of conti nuous
current rating and is designed for applica­
tion on Ac motor c i rcuits. The i ntermediate
setting may be used to in crease l o setting
trip a m peres or decrease h i setting tri p a m ­
peres as m a y b e req u i red.
I nterrupti n g R a t i n g
1 5,000 Amps Ac and 1 0,000 Amps De
N o n - I nterchangeable Trip Unit
Class: H i Shock M I L- S - 9 0 1 : 50°C Ambient
Trip
Unit
Rating
AB DE IQN®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a iled to: E, C/1 905/ P L
Type@@@
�
Typ es AO B -A1 01
250 Volts De, 500
1 00 Amperes Maximum, 1 5,ooo Amperes 1.c.
October, 1 978
Su persedes Price List 29- 220,
pages 1 5- 1 6, dated J u ly 1 , 1 974,
and S u pp. page 1 6 . 1 dated August 7, 1 978.
.c
om
Westi n g house Electric C o rporat i o n
L o w Voltage Breaker D ivision
Beaver, Pennsylvania 1 5009
· · · · · · · · · · ·
. . · · · · · · · · ·
P a n e l bo a rd M o u nt i n g
Type
ww
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Single Base Front Connected
Single Base Rear Connected
Single Base, Rear Connected, Line
Front Connected, Load
For use with rear connected
fuse base
Double Base Front Connected
Double Base Rear Connected
Style
N u m ber
Weight
National
Stock No.
31 5C364G03
31 5C364G02
2.75 Lbs.
3.00 Lbs.
None Assigned
None Assigned
31 5C364G04
458D569G02
458D569G03
3.00 Lbs.
3.50 Lbs.
4.00 Lbs.
None Assigned
None Assigned
None Assigned
AOB-A101
Breaker with
Single Front
Connected Base
AOB-A101
S i ngle Mount­
ing Base - Rear
Connected
AOB-A101
Double M o u nt­
ing Base ­
Front Connect­
ed
.c
om
Technical Data
29-220
Page 1 6
Fuse U n it Asse m bl ies
I
Complete Fuse U n it Assembly
Front
Rear
Front
Rear
1 5-25 Amps
1 5-25 Amps
50, 7 5 , & 1 00 Amps
50, 7 5 , & 1 00 Amps
I
Shipped As:
Fuse U nit@
Type
AOB- F 1 0 1 A
AOB- F1 01 A
AOB- F1 01 B
AOB- F 1 01 B
Fuse Unit M o unting Base
Style Number
Style Number
504C01 0H01
504C01 0H01
504C01 0H02
504C01 0H02
655D258G01 @
655D258G05@
655D258G03
655D258G06
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tri
ca
lP
372 B 1 55G01
372B 1 55G02
372B1 55G03
37281 55G04
Connection
Rating
ar
Style N umber
tM
an
ua
ls
AQB - F 1 0 1 A a nd AQB - F 1 0 1 B fuse u n its
are designed for use in conju nction with
standard A Q B - A 1 0 1 circ u it breakers on
circu its where a fault potential of u p to
1 00,000 amperes exists.
ww
® Individual fuses are not replaceable; replace with complete unit.
@ To convert for use with high rating fuse unit (AQ B - F 1 01 B ) i n field, remove rejection pin per i nstructions o n fuse unit mounting base nameplate.
Tech n ical Data
29-220
Page 1 7
Types AQB-A1 01 , N Q B -A1 0 1 ,
250 Volts De, 500 Volts Ac,
1 00 Amperes Maximum, 1 5,000 Amperes I . C .
October, 1 97 8
S u persedes Price List 29-220,
pages 1 7 - 1 8, dated J u ly 1 , 1 97 4
Shunt Trip
Breaker Type
Style Number
Shunt Trip - Volt­
age and Fre­
quency
4976D65G06
4976D65G02
4976D65G08
4976D65G04
1 20/60
1 20/Dc
1 20/60
1 20/Dc
Thermal Magnetic
Thermal Mag netic
Magnetic Only
Magnetic Only
an
tM
I n d i v i d u a l Re prod ucti o n s : When req u i red, reproduction of master drawings, outl ine
drawings and certification sheets can be ordered as follows :
Item
Description
1
Full size photolit�ic tracing of master drawing on cronoflex (mylar)
Outline and drilling plan o n cronoflex (mylar)
Certification data on Cronoflex (mylar)
Van Dyke negatives of items 1 or 2
Reproductions of items 1 , 2, or 3
2
3
4
5
Net Weig hts, Lbs.
AQB-A 1 01 - 6.00
N Q B -A1 0 1 - 5. 7 5
AQB - F1 0 1 A - 2.00
AOB - F1 0 1 B - 2.00
Fuse U n it M o u nting Base - 3.00
ca
A u x i l i a ry Switch: Breakers can be sup­
plied with interna l ly mou nted a uxiliary
switch to open or close control c i rc u its as
breaker operates. Each switch provides one
"A" contact and one "B" contact. "A" con­
tact is closed when breaker is closed , open
when breaker is open. "B" contact is open
when breaker is closed and closed when
breaker is open. When ordered with one
switch it is normally mou nted i n right pole,
may be specified mounted i n left pole. A
maxi m u m of 2 switches can be supplied:
one i n left a nd one i n right pole. Order by
description.
�
ar
To order, specify style n u mber of standard
breaker req u i red plus style n u m ber of s h u nt
trip attachment from table below. ( M ust be
factory insta l l ed . )
D rawings A va i l a b l e
- 900J429 - Master d rawing for breaker and mounting bases.
900J439 - M aster drawing for breaker with fuse u n it and mounting bases.
459 D448 - Outline and wiring diagram for breaker on single base.
654D255 - Outline and wiring d i agram for breaker with fuse u n it on single base.
459 D449 - O utline and wiring d i agram for breaker o n doubl e base.
654D256 - O utline and wiring d i agram for breaker with fuse unit o n double base.
6 5 7 D 20 5 - For fuse u n it mounting base only.
lP
Additions
Shunt Trip: B reakers can be equi pped
with a s h u nt trip attach ment for tri pping the
breaker from a remote point, and can be
supplied with coi l s for 1 20 volts, 60 cycle
or for 1 20 volts De. These s h u nt trips have
momentary rated coils a nd are supplied
with an auxiliary switch to be wired i n
series f o r protection (Auxiliary switch i n ­
c l u ded with t h e shunt trip. Do n o t order
separately) .
O rdering I nformatio n : See page 4 .
tri
lec
.E
N ote: One a u x i l iary switch normally sup­
plied with shunt trip attachments for cut- off
switch a nd additional switches can not be
suppl ied on breakers with s h u nt trips.
H a n d l e Lock: When specified, order style
1 61 4 485.
Rear Stud: Complete with 4 nuts, styl e
n u mber 208B801 G01 .
w
F u n g us- M o isture Resista n t Treatment:
(JAN -T-1 52, J A N - C- 1 73 or M I L- V- 1 7 3 ) .
I f specified, contact Westi nghouse. External
parts are coated.
ww
Tec h n ical M a n u a l : Navships No. 36223 1 4. This booklet per M I L- M - 1 507 1 .
When required, order BV R -T M -475A.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a i led to: E, C/1 905/ P L
.c
om
Westi n g house E l ectric Corporat i o n
L o w Voltage Breaker D ivision
Beaver, Pennsylvania 1 5009
.c
om
Technical Data
29- 220
Page 1 8
O u t l i ne D i mensio ns, A Q B - A 1 0 1 B reaker
For S i ngle Breaker Mo unted Base
5ffi
I
r'
an
6 12
ua
ls
Single Breaker ( R ear Mounted)
Copper extensions
for megger read ings.
Copper extensions 14-----­
can be broken off
2�
8
:
•
3 \@6
tM
m
ate -
\9
32
ar
f
:�\
D r i l l i ng P l a n
F o r Single M o u nted Base
C i rcuit B reaker H a n d le
Locking Device
lP
Reverse position of lock to
b<"k" f.omopMI"g
%
1 Dia. megger
OFF
test holes
( Not supplied with circuit
Westinghouse style
.E
lec
tri
ca
Breaker outline
ww
w
�������
3\6[?
9
132
�--�----�---+- �--�----�� ___1
.098 Dia. hole for handle locking device or warning tag
bkr.)
1614485
Types AQB -A1 01 , N Q B -A 1 01 ,
250 Volts De, 500 Volts Ac
1 00 Amperes M aximum, 1 5,000 Amperes I . C.
A Q B - A1 01 B reaker M o u nting B locks
For Double Mounting Front Con nected
For Two Breaker Mounting Base
Between ct_of next base
8
r--l - -1�8: •fo--- 1�8+1
I l
� ·-- 3
rl
4�
\1:+-��tJ:HJ,+1�� t
"j= -(:�,: - ! I-f"��o'
-
�-
-
.
.----
l i...I.
.H
-r+--+---1--
w
9)
--
��:
48
--· -
. H�I . .
�
�'"'
- · -1
-
1
32
4
-
1�
i
·
�D
l�
j?
1 3,
3
-
-- Load
';;_
r:r
I
.E
w
ww
__
�=
���at
I..
1 ·
..
.C
!
I
·I
-
1�!1;f1
JillI I' _
Frant caver
I
Pivot
l ine
I
I
1
3
34
i'�:I '
," '-'1
' c�
L -
J_ �
l___l_
. 1 90 32 X
-
L
"T
i[L j
"1,1
.
!
_ _
:
l
_
r-
1 ,
r-
1
1
4- Dia. ·
Round head screw
16 Max. width
· max.
, an d 2I m
·r� \- thick copper
.,
bus
1 - ..,*F
�h' '--
�
T
-1
c _,
·
r
�
l.l- - - -· � -
f�
J;-
� C bore ( 6 hales)
Front Cover Cutouts
For Double Mounting Base
11
,k...
�
5 32
9 oia. mtg. hale
32
'
·I�
---
I .I
-F=--l;l
lec
r;;;;_
"'{:"'
��!.
'-,
- - •-+-+7f(+t+---'-
4-1 - 20Tap -�
�r
( 2 hales)
c
:c- r -!J �f��=�=l
[l _ I. _
l ·l t
I !:_� _ll
r-��
�===+t- ��i�
ca
ll
..
�
l I
-
-� - - .
t;�� ::� L --��
6 :f2
--
·
tri
C
1
r
7
rTI
1 f .-_)if�
4-20Tap
-:
f.
( 2 holes)
-.--r'-+-+-+-+
1 �--c---+-«a+1�4 ..==
�
I 1==
--. ,.
-1 - ' ""'
r:-21 t_4-1 '-48
1
I
"�'
r
l
.
I
I ,-,-,
tC:'
""'"'l'"""
31
+
X./
�
Thk. lnsulatian recommended . 13 . .
Dnl l 32 mm. dla. holes
s! ---'---+
1_
3
,
(
not
furnished)
.l
�
- 8 j
II
� e��
�
���
e�
·�
��
/ [ 32 .-�.--�-H-------�'�
- �
,�
-r�r
-s r
_,
I
1 3 r-2
-
tM
�' � 6j,
--- 6a --f---.1 �
...-��·-- -�
ar
1r
�i6 8
_
Capper extensions for megger readings
lP
,
3
__..
For Double Mounting
Rear Connected
an
4
AB DE-ION®
Circuit Breakers for
Naval Shipboard U se
ua
ls
M a i led to: E, C/1 905/ P L
1
Technical Data
29-220
Page 1 9
October, 1 978
Su persedes Price List 29- 220, pages 1 9 - 20
dated February 1 7, 1 969
.c
om
8
West i n g h o u s e Electric Corporation
Low Voltage B reaker D ivision
Beaver, Pennsylvania 1 5009
[
-·
I.
Complete
hardware
supplied
except for
capper
bus bars
1
I
"'=
T,1.
___
��
·�tf'- v h�l�"l��
f-:"
_ _
M
bolt
I.J38_. - Mounting plate
_I _
Cable
entrance
Complete
hardware
supplied
except far
capper
bus bars
.c
om
Technical Data
29-220
Page 20
O u t l i n e D i m ensio ns, Continued A O B -A1 01 F B reakers, S i n g l e Base with Fuse U n it
For M o u nting of B reaker
( Front Connected)
Copper extensions for megger readings
( may be broken off if not required )
LSE
52
4�--v
23
32 Max. across corners
.J
T-·n l
-
an
-
For Dimensions of Breaker and Mounting
Base See Drawing Number 459D448
ua
ls
2 16I
For M o u nting of Breaker
( Rear Con nected)
1
I
iL
_'-':==--'---rl
::,__. -tl-c.._
----'J_, j
8
Insulation sheet
( not supplied )
.,�
lP
ar
tM
- : ��-,
+
ca
Terminal for M i nimum N avy Cable Thfa-3-2828 C. M .
and Maximum Navy Thfa-1 00-1 00,000 C. M .
r
tri
D r i l l i n g Plan
For Rear Connected
Studs and M o u nting
Bases
lec
.E
w
ww
Front Panel Cutout
I�
IS
I
-
---t-----ffi-
�-20 Tap (6 holes)
for mounting bases
\
�l
�
_
_
I
I
6
1-
_..
- =-=r- -� ,
­
----: - --+==�
1+--- 916 ____
5 o ta.
· megge r ( 3 holes)
2�4 -- i-3P2 16
9
i6
·
r- l
r--- -----I
I
:----
(
"
\... _
-
.
I
,
_ _)
'
---- -
r--
l-14.!, -:--- 2� --
�
l j
_
_
-
�ker outline
B
.,.t
'!
t
1
j_
l
.3
\ zi
1-
�
<t_of Breaker
Tech n ical Data
29- 220
Page 2 1
October, 1 978
S u persedes Price List 29-220, pages 2 1 - 22,
dated February 1 7, 1 969
Types AOB-A1 0 1 , N O B -A 1 0 1 ,
250 Volts De, 500 Volts Ac
1 00 Amperes Maximum, 1 5,000 Amperes I . C.
AOB-A1 01 B reaker, D o u ble Base with Fuse U n its
ffir �
h;f
For Mounting of Two Breakers ( Front Connected)
r(fl
jj j 1 2!
'"TI � I
- ����
d � cY1ttr;0 -32 1
b====l====i
�
13
�
AQB-FIO I A or
AQB-FIOIB
n serts ( 2 )
.I
for fuse puller screws
6u16
@
20
t-"=-1
=
'---;���==
;= -'==r���-=-.=::::i ,l�-'�f;_�J��.
L
c:
t�
-�
� -- -- -- ---- -- -p-
I4
For Dimensions of Breaker and Mounting
Base See Drawing N u mber 459D449
an
i.'.1
'. .
4 ('
-1+_,f.J
2�
�
" FeTJUrr: rn u rre
1� Thick Insulation
recommended
tM
-�-�'"""'
.1.1..�
�
For Mounting of Two Breakers
( Rear Connected)
13%
1
15�
ar
�-(s-R�
33
!
6 l
4�1�
t---61..!,.�--"'"
1
1-- � 3�1
,
iS
i
�
�- .,�.-=... ----------- -----
- ---
r .r
� ,_ 1
11
; :� �-- :::::�' J:j� � 7�
I
K- jto.
f---r--+-1�--Ht-.r--+-r
cc
p L
I
lP
6
f
2�
!
C:::
AQB-AIOI
c .r
6
6l
ca
10
_-_-_-_-_- c c
�
�
I
_
I
I
tri
AOB- FIOI A or
AQB-FIOIB
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a i led to: E, C/1 905/PL
.c
om
Westi n g house E l ectric Corporation
Low Voltage Breaker D ivision
Beaver, Pen nsylva nia 1 5009
h
----- : p u
2
93IT2
I ;)�JI
,,
u '='=- , .
•JP--'--
I �-�J�Il; l
�
I
�
Terminal for M i n imum Navy Cable Thfa-3 -2828 C.M.
and Maximum Navy Thfa - 1 00 - 1 00,000 C . M .
� 2�
lec
-------=-=--------19 � -----+1• 406 Min.dio . ( 6 holes) for
1
rear connected stud
1+----- 9� -------1
7
15
Bose outline
8
.E
D r i l l i n g Plan
For Rear Connected
Studs and Mounting
Bases
w
ww
43
32 � � 2
II
!
F ront Panel Cutout
.250-20
Top ( 10 holes )
for mounting bases
1I
2
II
f-- i
,., _
L_J
6
-
9
,.
'-
2 4-
6169
16
.
-
,
_ ..)
,.
.
'- ·
_ ..)
i-- 2 1� -� �a +la ·1-- 21� �
16
,-
,
-
16
:.I
�
reoker outline
II
�"- 32
l
1
I
i
�
::::-,.
1
,11 14
1 3 t_
1 � ii
I�
3
1� Diameter megger
16
( 6 holes )
.c
om
Technical Data
29-220
Page 22
400 Cycle B reakers
V>
(])
::;
::;;:
.S
(])
E
f=
!\
\ \
' '
10
1\
5
4
3
2
V>
u
(])
({)
-- Instantaneous
Tri p at 500% to
700% Rofmg
"'
�
'
'
2000
�"
$2
N
0 0
0 0
r0 7
Percent Rated Current
0 0 0
0 0 0
(j) Cl) 2
O perating C h a racteristics
Trip Unit Rating 1 5 - 1 00 Amperes
50"C Ambient - Cold Start, 60
Ac or De, Thermal Magnetic
0 0
0 0
0
0
� � �
Cycle,
0
0"'0
0 0 -
N
1-
-
"""
v
v
v
IJ
"' "'
N V' +>
I-
"'
0
I
:;
Operating C h a racteristics
Trip U nit Rating 1 5- 1 00 Amperes
50"C Ambient - Cold Start
400 Cycle Ac, Therm a l Mag netic
Trip U nit R ating
90
I
I
80
70
60
"
tri
1.5
2.0
2.5
\)\
1
40
30
20
15
10
�
5
4
3
2
[\ )
:I
0
0
N
0 0
0 0
r0 7
Percent Rated Current
0 00
0 0 0
t.O ro 9
50° C Ambient Cold Start,
"G" rating, 60 or 400 Cycle
Ac, or D e - Thermal Magnetic
3.0
3.5
4.0 4.5
Foetor
To determine the trip unit rating to be used,
when the load c u rrent and ambient are
known, m ultiply the load current by the fac ­
tor obtained from this c u rve for the known
ambient. The result will be the ideal trip unit
rati ng. H owever, since trip units are fur­
nished only with standard ratings as per
Navy spec., select the standard trip unit
whose rating is eq u a l to or one rating higher
than the ideal rati ng.
lec
.E
ww
w
Westi nghouse Electric Corporation
Low Voltage B reaker Division
Beaver, Pennsylvania 1 5009
1.0
"'
"
-- Instantaneous
Tri p at 500% to
700% Rating
\
\
2
10
0.5
E
"'
\
i\
\j\
0
I
20
(])
- - - I nstantaneous
Tn p at 1200% to
1400% Rating
1
40
0
1
40
30
20
5
:s
u
1/
5
4
3
2
3
2
(X
ca
50
netic AOB breakers. It requ i res that they
carry 1 50% of cu rrent rati ngs for at least one
hour and that thermal elements i n itiate tri p ­
p i n g at 2 2 5 % rated c u rrent within one h o u r
a n d a t 600% i n 2 5 seconds p l u s o r minus
25%. The instantaneous magnetic settings
for each continuous rati ngs are based on in­
tended applications. {Thermal tri pping tests
are conducted with a l l poles in series i n
5 0 " C ambient; e a c h p o l e is tested individ­
ually to check magnetic settings.)
G e nerator B reakers
�
3000
i
0
0
400
1 5 00
ll
'l
N V'
I/
300
1 00 0
5
4
3
2
0
0-
60a
\.
20
15
10
0
0
800
'
"'
U'
N i -"
0
1\[\
40
30
"
c
0
0
6
U'
an
1
40
30
20
- - - I nstantaneous
Tri p at 1200% to
1400% Rating
N V'
tM
'
2
-
ar
::J
0
Specification M I L-C-1 7361
� This specification covers all thermal mag­
lP
�
0
I
5
4
3
T1me, M1nutes
Seconds
AOB-A1 01 B reakers
ua
ls
Characteristic Curves
l'
0 0
0 0
"' 0
-
N
0
0
0
r0
Types AQB -A250, N QB -A250
250 Volts De, 500 Volts Ac
250 Amperes M ax i m um, 20,000 Amperes I . C .
A Q B - A250 a n d N Q B -A250 B reakers
Specificati o n : M I L- C - 1 7361
1 25-250 Amperes
500 Volts A c and 250 Volts De
Two and Three-Pole
,
tM
AQB -A250 breakers can be ordered with
u ndervoltage release devices, a u x i l iary
switches and shunt trip attac h ments com­
plete with auxil iary switch. These attac h ­
ments are a l s o easily i nsta lled i n t h e field.
Test report n u mber 541 9 - 29.
N et Prices See Price List 2 9 - 020
High
Low
H ig h
_
Complete Breaker®
Style
Number
Two-Pole 500 Volts Ac, 250 Volts
650
1 950
650
1 950
650
1 950
225-N
225- N M
250-N
2 50 - N M
250@
650 1 300
1 500 3000
650 1 300
1 700 3400
N o n-Auto
1
1 300
3900
1 300
3900
1 300
3900
1
650
2250
650
2250
650
2250
1 300
4 1 00
1 300
41 00
1 300
41 00
31 3C682G03
31 3C682G04
31 3C682G05
31 3C682G06
31 3C682G07
31 3C682G08
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
650 1 300
1 770 3550
650 1 300
1 850 3800
Non-Auto
31 3C682G09
31 3C682G 1 0
31 3C682G 1 1
31 3C682 G 1 2
31 3C682G31
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
1
De
1 1 75 2350
1 950 3900
. . . . . . . .
. . . . . . . .
. . . . . . . .
650 1 300
31 3C682G 1 3
31 3C682G 1 4
31 3C682G 1 5
Three-Pole 500 Volts Ac, 250 Volts
650
1 950
650
1 950
650
1 950
1 300
3900
1 300
3900
1 300
3900
225-N
225-NM
250-N
250- N M
250@
650 1 300
1 500 3000
630 1 300
1 700 3400
Non-Auto
w
1
ww
1 1 75 2350
1 950 3900
. . . . . . . .
1
I
4520370G01
4520370G01
452D370G01
4520370G01
452D370G01
4520370G01
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
452D370G01
452D370G01
4520370G01
4520370G01
4520370G03
None
None
None
None
None
Trip U n it Only
Style
Number
National
Stock No.
452037 1 G 03
4520371G04
4520371 G05
4520371G06
4520371 G07
4520371 G08
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
452037 1 G09
4520371 G 1 0
4520371 G 1 1
4520371 G 1 2
29B271 0G05
H 5925-00-064-7834
None Assigned
None Assigned
None Assigned
None Assigned
4520370G01
4520370G01
4520370G01
None Assigned
None Assigned
None Assigned
4520371 G 1 3
4520371 G 1 4
4520371 G 1 5
None Assigned
None Assigned
None Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
De
None Assigned
None Assigned
None Assigned
31 3C682 G 1 8
31 3C682G 1 9
31 3C682G20
31 3C682G21
31 3C682G22
31 3C682G23
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
4520370G02
4520370G02
4520370G02
4520370G02
4520370G02
4520370G02
H 5 925-00-789- 37 1 8
H 5 925-00-789-371 8
H5925-00-789-371 8
H5925-00-789-371 8
H5925-00-789-37 1 8
H5925 -00-789-37 1 8
4520371 G 1 8
4520371 G 1 9
4520371 G20
4520371 G 2 1
4520371 G 2 2
4520371 G23
None
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
650 1 300
1 770 3550
650 1 300
1 850 3800
Non-Auto
31 3C682G24
3 1 3C682G25
31 3C682G26
31 3C682G27
31 3C682G36
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
4520370G02
4520370G02
4520370G02
4520370G02
4520370G04
H5925-00-789-371 8
H5925-00-789-371 8
H 5 925-00-789-371 8
H 5925-00-789-371 8
None Assigned
4520371 G24
452037 1 G25
4520371 G 26
4520371 G27
29B271 0G06
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
4520371 G28
4520371 G29
452037 1 G30
None Assigned
None Assigned
None Assigned
1
Three-Pole 500 Volts Ac, 250 Volts
1 00 - N G
1 60 - N G
250-NG
1
National
Stock N o .
1 300
4 1 00
1 300
4 1 00
1 300
41 00
650
2250
650
2250
650
2250
.E
1 25 - N
1 25 - N M
1 50-N
1 50 - N M
1 75 - N
1 75 - N M
1
Style
Number
G enerator Circuit Breaker Applications
lec
Two Pole 500 Volts Ac, 250 Volts
1 00 - N G
1 60 - N G
250-NG
De
National
Stock N o.
tri
1 25 - N
1 25 - N M
1 50-N
1 50 - N M
1 75 - N
1 75 - N M
I
Breaker Frame Only@
lP
Low
De
ca
I
Ins!. Trip Setting - Amps
Ac
ar
AQB -A250 circuit breakers are used pri­
marily to protect feeder ci rcu its, however,
those followed by " " N M"' in the price table
have higher magnetic setti ngs to a l l ow for
motor starting. Breakers with setti ngs spe­
cifically for use with generators are desi g ­
nated " N G " i n the price table.
an
These breakers a r e available w i t h i nter­
cha ngeable trip u n its i n ratings of 1 25, 1 50,
1 7 5, 225 and 250 amperes. The non­
automatic N Q B -A250 carries a 250 a m pere
rating and has copper conductors replacing
the trip u n it. Special generator breakers have
trip u n its rated at 1 00 , 1 60, and 250 amperes.
I nterrupting Ratings
20,000 Amps Ac a nd 1 5,000 Amps D e
'
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a i led to: E, C/1 905/ P L
Cont.
Ampere
Rating
Technical Data
29-220
Page 23
October, 1 978
S u persedes Price List 2 9 - 220, pages 23-24,
dated J u ly 1 , 1 974.
.c
om
8
West i n g house E l ectric Corporation
Low Voltage Breaker D ivision
Beaver, Pennsylvania 1 5009
. . . . . . . .
. . . . . . . .
650 1 300
De
1
Generator Circuit Breaker Applications
31 3C682G28
3 1 3C682G29
31 3C682G30
None Assigned
None Assigned
None Assigned
4520370G02
4520370G02
4520370G02
H5925-00-789-37 1 8
H5925-00-789-371 8
H 5925-00-789-371 8
I
N ote : B reakers with ratings other than than those given on this page are c on sidered as special and full description data must be pro vid ed
® Styles listed include slip -type connectors for rear connections. Order front ter m i nal connectors separately
re qu ired ; see page 24. No additional charges for front connectors ordered with breakers or frames.
if
@ Type N Q B-A250 non-automatic.
.
.c
om
8
Technical Data
29-220
Page 24
l
A Q B - A250 a n d N Q B -A250 B reakers, Continued
Net P rices See Price List 2 9 - 020
l n�tanta � eous
Tnp Settmg
i n Amperes®
Low
H ig h
I
Com plete Breaker®
Breaker Frame Only®
Style
Number
National
Stock No.
Style
Number
National
Stock No.
None
None
None
None
None
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
None
None
None
None
None
400 Cycle, Two-Pole, 500 Volts Ac
1 25 - N H
1 50 - N H
1 75 - N H
225-N H
2 50 - N H
1
91 0
91 0
91 0
91 0
910
1 560
1 560
1 560
1 560
1 560
1
31 5C574G03
31 5C574G05
31 5C574G07
3 1 5C574G09
3 1 5C574G 1 1
Assigned
Assigned
Assigned
Assigned
Assigned
1
Assigned
Assigned
Assigned
Assigned
Assigned
400 Cycle, Two-Pole, 500 Volts Ac Generator Circuit Breaker Applications
3420
3420
4200
31 5C574G 1 3
3 1 5C574 G 1 4
31 5C574G 1 5
None Assigned
None Assigned
None Assigned
400 Cycle, Three-Pole, 500 Volts Ac
1 25 - N H
1 50 - N H
1 75 - N H
225- N H
250- N H
1 560
1 560
1 560
1 560
1 560
91 0
91 0
910
91 0
910
I
1
31 5C574 G 1 8
31 5C574G20
31 5C574G22
31 5C574G24
31 5C574G26
None
None
None
None
None
Assigned
Assigned
Assigned
Assigned
Assigned
3420
3420
4200
3 1 5C574G28
3 1 5C574G29
3 1 5C574G30
1
None Assigned
None Assigned
None Assigned
457D446G03
457 D446G05
457 D446G07
457D446G09
457D446 G 1 1
None
None
None
None
None
457D446G1 3
457D446G 1 4
457D446G1 5
None Assigned
None Assigned
None Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
None Assigned
None Assigned
None Assigned
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
H5925-00-789-37 1 8
H5925 -00-789-37 1 8
H 5 925-00-789-37 1 8
H 5 925-00-789-371 8
H5925-00-789-37 1 8
457D446G1 8
457D446G20
457D446G22
457D446G24
457D446G26
None
None
None
None
None
H5925-00-789-37 1 8
H5925-00-789-37 1 8
H5925-00-789-37 1 8
457D446G28
457D446G29
457D446G30
None Assigned
None Assigned
None Assigned
452D370G02
452D370G02
452D370G02
Assigned
Assigned
Assigned
Assigned
Assigned
ar
2020
2020
2520
National
Stock No.
452D370G01
452D370G01
452D370G01
400 Cycle, Three-Pole, 500 Volts Ac G enerator Circuit Breaker Applications
1 00- N G H
1 60 - N G H
250- N G H
Style
N u m ber
an
2020
2020
2520
tM
1 00 - N G H
1 60 - N G H
250- N G H
Trip U n it Only
ua
ls
Cont.
Ampere
Rating
Switch board M o u nt i n g
Com plete breakers a n d frames include mounting hardware. Female slip con nectors are
mounted in breaker base to plug onto stud projections of term inal mounting block assem­
blies. Order one mounting block assembly for each end of breaker.
One Stud Assembly complete with 4 nuts
Terminal Mtg. Block (No Studs)
M o u nting Block and Stud Set (3 Studs)
Style
Number
I
National
Stock No.
lP
I
I
None Assigned
1 631 443
None Assigned
3 1 3C681 G01
None Assigned
3 1 3C680G02
( N et Weight - 2 % Lbs.)
ca
Description
Front C o n n ected B reakers
For connections made at front term i nals, pressure-type lugs required. If specified on same
order, conn ectors furnished n o charge. One con nector per terminal. Select below.
25
N 1 50-N200
I � ��
I
- 1 75
250
I
Description
Solderless
Connector
K i t to C o nvert A Q B Frame to N O B
B reaker
Poles
I
Style
Number
tri
��go�Z�
I
Amps
I
National
Stock No.
I �g��g����� I ���= �:::��=�
20B305 5 H 1 6
None Assigned
lec
Cable
Range
Net
Weight
3
.E
% Lb.
® Styles listed include sli p-type connectors for rear connections. Order front terminal connectors separately if
required . N o additional charges for front con nectors ordreed with breakers or frames.
® For 400 cycle breakers with higher instantaneous trip ratings. refer to Westinghouse.
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Westi ngh ouse Electric Corporation
Low Voltage B reaker Division
Beaver, Pennsylvania 1 5009
""C
�"'
a.
.c
om
West i n g house Electric Corporation
Low Voltage Breaker Division
Beaver, Pennsylvania 1 5009
Tech n ical Data
29-220
Page 25
October, 1 97 8
S u persedes Price List 29- 220, pages 2 5 - 26,
dated J u ly 1 , 1 974.
Types AQB -A250, N QB -A250
250 Volts De, 500 Volts Ac
250 Amperes M aximum, 20,000 Am peres I . C.
ua
ls
M a i led to: E, C/1 905 / P L
A Q B -A250 a n d N Q B - A250 B reakers, Contin u ed
lec
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w
.E
Tech n ical M an u a l - N AVS H I P S N o .
362-21 64: This booklet per M I L- M - 1 5 07 1 .
When required, order B V R -T M -379.
an
Style
N umber
452D377G05
I
National
Stock No.
None Assigned
None Assigned
452D377G07
90- 1 30
360-500
1 20 V De
450 V Ac
U n d ervo ltage Device: Automatically trips breaker when l i n e voltage drops below 40 to
60% of norma l . After und ervoltage coil has dropped out and tripped breaker o n reduced
voltage, it automatically resets by breaker action. (If und ervoltage coil is energized to 80%
of norm a l ) . Select device below. Net weig ht., 1 . 1 2 l bs.
Nominal
Voltage
450 Ac,
60 Cycle
250 De
33 De
I
Voltage
Range
360-500
I
1 75-355
30- 36
Pickup and
Seal Volts
( M inimum)
360
1 50
22
I
Dropout
Voltage
Style
N umber
National
Stock
N umber
290
45
25
5
452D837G01
None Assigned
452D837G02
452D837G03
None Assigned
H 5 950-00-790-4869
M ax.
M in.
M in.
M in.
I n d ividual Re productions: When required, reproduction of master drawings, outline
drawi ngs a n d certification sheets can be ordered as follows:
Item
1
2
3
4
5
tri
S pare Parts Boxes - Per M I L- B -233:
After determ ining box size or n u m ber of
spare trips to be stored therein (one com­
plete trip u nit req u i red for each 1 0 breakers
or fraction thereof of a specified rating ) ,
contact Westi nghouse for q uotation.
Voltage
Range
24- 32
90-1 30
28 V De
1 1 5 V Ac
ca
F u n g u s - M o isture - Resistant Treat­
ments: (JAN -T- 1 52; J A N - C - 1 7 3 or M I L­
V - 1 7 3 ) : If specified, contact Westing house.
External parts are coated; tri p un its are not
treated.
I
tM
A u x i l i ary Switch :
I f required, style
452 D379G 02, national stock n u m ber 593000-732 -8401 . I nterna l ly mou nted switch
is used to open or close control circu its as
breaker operates and is provided with " "A"
and " " B"' contacts. "A" contact is norma lly
closed when breaker is closed a nd open
when breaker is open; "B" is normally
open when breaker is closed and closed
with breaker open. I t has the fo l lowing rat­
ing at given voltages: 1 5 a m p - 1 25, 250
or 460 volts Ac; 'h amp - 1 25 volts De; X.
amp- 250 volts De. N et weig ht, . 1 7 l b .
Nominal
Voltage
ar
M echan ical I nterlock : If mechanical
i nterlock (switchboard use) is desired for a
pair of breakers, order by descri pt ion. ( N ot
sub mitted for Navy approva l . )
S h u nt Tri p : S h u nt trip attac h ments for tripping the breaker electrically from a remote point
are listed i n table below. S h u nt trips have mome ntary rating only a nd for protection must be
con nected i n series with a uxiliary switch. Auxiliary Switch (style 452D379G02) is included
in shunt tri p n u m ber shown below. Do not order separately. Net weight, .70 lb.
lP
Additions
H a n d l e Lock : If req u i red, order style
1 7201 0 1 . One furnished no charge per
1 0 breakers ordered, when requested. Net
wt., . 1 5 1b.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
I Description
I
Full size photolithic tracing of master drawing on cronoflex (mylar)
Outline and drilling plan o n cronoflex (mylar)
Certification data on cronoflex (mylar)
Van Dyke negatives of items 1 or 2
Reproductions of items 1 , 2 or 3
D rawings Ava i l a b l e : Master draw ing 900 - J -376; front and rear connected breaker out­
l i n e, d r i l l i n g a n d w i ri n g d i a g ra m 452- D-834.
O rdering I nformat i o n : Page 4
N et We ig ht, Lbs.
AOB Complete, 3 - Pole A250
NOB Complete, 3 - Pole N 250
3 - Pole AOB, N O B Frame
AOB Trip U n it, 3 - Pole
20.50
1 7.50
1 7.00
3.50
.c
om
Technical Data
29-220
Page 26
O u t l i n e D i m ensions AOB -A250 B reaker
Front face of mounting
sheet or channel
Support blocks ore not supplied
2 16
�
with breoke ')_ but must be ordered
---+---+--+
separately. t-�efer to drawing
313C680 Al l ports necessary to
nvert o breaker ore included.
3
a·16Stud
'---4-��-l----+-+ 4- 20 Mig.
I
Screws
ua
ls
Line End
-t---#J��i!3:�i:�H::£�:__4;co
an
11
Visible amp rating
interchangeable
trip unit
Front Sheet
load End
ar
Front connected
solderless terminals
See wiring diagram
and dril ling plan
4 Nuts and 1 washer supplied with
tM
Frame
Nameplate
Warning
Nameplate
stud
Front Sheet D r i l l i ng Template
ca
lP
Line End
Handle Locking Device
( N ot Supplied With
Circuit Breaker)
Flat washers, lock
wash ers and nuts
supplied with terminal
Rear connections
ore on 3"centers
tri
mounting blocks
Frant connections
� centers
� Dio. 3 holes
for megger test
lec
ore on 2
Front Con nected Solderless
Term inals Identification
Style Number
Cable Range A
MCM
20B3055H 1 4
20B3055H 1 5
20B3055H16
c
Min
.E
Max
B
75
50
1 2"/,,
&"h.
5"h.
1 25
100
13
61�.
&'Ao
200
1 50
1 3'/,,
7'h.
6%.
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Front Connected Terminals are not Supplied with
Circuit Breaker
W i r i n g Diag rams
AQB
NQB
Line End
Line End
�):
)
���
m �i�
Load End
load End
When U nder-Voltage
Release is Provided
When Sh11nt Trip and Auxiliary
Switch is Provided
A r
::,��h83 ����� y �-rfTl
�-ll-fl
) ) ) og
)))
: m�asr o tag ���\Shunt
1
'
L__
1
_
:
___.
18" l n
---._ ;
U n de v l
e
rel e e 2
"
leads 18 lang
L._
:
•
_
:
_J
Note:
The auxiliary switch must be used with each shunt
trip. Connect one side of shunt trip i n series with "A "
contact ( Closed when breaker is closed) of auxiliary
switch when connecting to power supply.
trip 2
leads 18" long
Technical Data
29-220
Types AQB -A250, N Q B -A250
250 Volts De, 500 Volts Ac
250 Amperes Maximum, 20,000 Am peres I . C.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
4
3
I
1\
10
8
6
40
Maximum
10
8
\
4
3
I
Tnpping
Time
I fo 2 M , n .
5 to 1 5 M ; n .
=
�
0
0
-
0 0 0 0 00 0 0 0 0 0 0 0
111 0 0 0 00 0 0 o o o o 0
0 0 0
0 00 0
0 0 0 0
lec
I
.B
.6
.5
- N
t<"l -t" •nw oo o
-
Percent Rated Current
..n o
- (\J
o o
r<"l v
o
<.!)
0
Q �- �:f �;f
.E
O perat i n g C h a racteristics
Trip U n it Rati n g 1 25 - 25 0 Amperes
5o·c Ambient - Cold Start, 60 Cycle,
Ac or De
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Specification M I L- C - 1 7361
This specification covers all thermal - mag­
netic AQB breakers. It requi res that they
carry 1 50% of current ratings for at least
one hour a nd that thermal elements i n itiate
tri pping at 225% rated cu rrent within one
hour and at 600% i n 2 5 seconds plus or
minus 25%. The instantaneous mag netic
settings for each conti n uous ratings are
based o n i ntended appli cations. (Thermal
tripping tests are conducted with all poles in
series i n 5o·c ambient; each pole is tested
i ndivid ually to check magnetic settings.)
• •
4 5
3
2
90
5
3
1\
- N
0
0
"'
0
0
<t
0
0 0
g ��
0
0
� g g
0
N
"'
/
I
eo
2
-
0
N
T r i p U n it Rati n g
7
0 0 0
C ill O
0
0
!2
0
,.
Ij
O perati n g C h a racteristics
Trip U n it Rating 1 25-250 Amperes
5o·c Ambient - Cold Start
400 Cycle Ac
I0
I
B
.6
5
' ·"
Per Cent Rated Current
\\
tri
�
u
I
40
0
20
5
10
I
ca
7
5
4
3
2
0
0
10
' \
1\
10
_
2 0 M 1 n o r More
40
20
1\
I
4o
o
20
=
I
40
4
3
2
Maximum
M i n imum
20
�
300
200
150
lP
\
10
8
6
Percent of Tr i p
Element RaTings
4
3
M i n i mum
20
�
20
I
40
u
I
0
I I I I I I I
I II II
I
30
1\
2
�
�
an
1\
10
8
6
0
J:
ar
20
lime
25 Seconds± 2 5 %
Less Th a n 1 Hour
More Than I Hour
600
225
1 50
30
I I I I
Tripping
tM
I II I I I I
I
50
400 Cycle B reakers
A O B -A250 G e n erator B reaker
Percent of Tr i p
E l e m e n t Rating
Page 27
ua
ls
M a i led to: E, C/1 905/PL
C h a racteristic C u rves
A Q B - A250
.c
om
October, 1 978
S u persedes Price List 29- 220, pages 2 7 - 28,
dated February 1 7, 1 969.
Westi n g house Electric Corporati o n
Low Voltage B reaker Division
Beaver, Pennsylvania 1 5009
70
o o oooo o o o o o
O O OO O O Q O O O O
t<"l '<f i{)\Ll <D Q IO O O O O
Percent Rated Curren1
-
-
N
� '¢
W
-
II
60
o oo o
0 00 0
0 0 0 0
0- 1{)- 6 c;i
50
40
- N r0
30
O perat i n g C h a racteristics
Trip U n its, Types 1 00 N G H , 1 60 N G H ,
250NG H , 1 00 N G , 1 60 N G a nd 250NG for
use with generator circuit breakers 5 0 ° C
ambient - Cold Start A c o r D e
c
..
:.0
E
<(
10
0
o
0.5
Foetor
1.0
1.5
2.0
2.5
3,0
3.5 4.0 4.5
To determ ine the trip u n it rating to be used,
when the load c u rrent and ambient are
known, m u ltiply the load current by the
factor obtained from this curve for the
known ambient. The result will be the ideal
trip u n it rating. H owever, since trip u n its are
furnished only with sta ndard ratings as per
Navy spec., select the sta ndard trip unit
whose rating is equal to or one rating
higher than the ideal rati n g .
.c
om
Technical Data
29-220
.E
lec
tri
ca
lP
ar
tM
an
ua
ls
Page 28
ww
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West ing house Electric Corporation
Low Voltage Breaker Division
Beaver, Pennsylvania 1 50 0 9
.c
om
Tech nical Data
Westinghouse Electric Corporation
Distribution a n d Control Busines s U n it
E lectrical Components Division
Pitts b u rg h , Pennsylva n i a , U . S .A. 1 5220
J u ly 1 99 1
S upe rsedes Tech n ical Data 29-220,
pages 29-30, dated A p r i l 1 99 1
M a i led to : E, D, C/29-200A
an
These breakers are availa ble with i nter­
changeable trip u n its in ratings of 1 25, 1 50,
1 7 5, 225 and 250 amperes. The n o n ­
a utomatic N QB -A250 carries a 250 ampere
rating and has copper conductors re placing
the trip u n it. Special generator breakers have
trip u n its rated at 1 00, 1 60, and 250 am peres.
I nterrupting Ratings
20,000 Amps Ac and 1 5,000 Amps De
AQB - A250 circuit breakers are used pri ­
marily to protect feeder circuits, however,
those fo llowed by ' " N M" in the price table
have higher magnetic setti ngs to al low tor
motor starting. Breakers with settings spe­
cifically for use with generators are desi g ­
nated '" N G " i n t h e price table.
ar
tM
AQ B - A250 breakers can be ordered with
undervoltage release devices, auxil iary
switches and shunt trip attac hments com­
plete with auxili ary switch. These attach­
ments are also easily installed in the field.
Low
High
De
Low
High
I
Complete Breaker<D
Style
N umber
De
Two-Pole 500 Volts Ae, 250 Volts
650
1 950
650
1 950
650
1 950
225-N
225-NM
250-N
250-N M
250®
650 1 300
1 500 3000
650 1 300
1 700 3400
Non-Auto
1
1 300
3900
1 300
3900
1 300
3900
1
650
2250
650
2250
650
2250
1 300
41 00
1 300
4 1 00
1 300
4 1 00
650 1 300
1 770 3550
650 1 300
1 850 3800
N on-Auto
1
31 3C682G03
31 3C682G04
31 3C682G05
31 3C682G06
31 3C682G07
31 3C682G08
De
. . . . . . . .
. . . . . . . .
650 1 300
650
1 950
650
1 950
650
1 950
31 3C682 G 1 3
31 3C682 G 1 4
31 3C682 G 1 5
1
650 1300
1 500 3000
650 1 300
1 700 3400
Non-Auto
w
225-N
225-N M
250-N
250-NM
250®
1 1 75 2350
1 950 3900
. . . .
ww
1 00-NG
1 60 - N G
2 50 - N G
1
. . •
.
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
452D37 1 G03
4520371 G04
452D371 G 0 5
4520371 G 0 6
452D371 G07
452D371 G08
452D370G01
452D370G01
452D370G01
452D370G01
452D370G03
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
452D371 G09
452D371 G 1 0
4520371 G 1 1
4520371 G 1 2
29B27 1 0G05
De
. .. .. .. .. ..
452D370G01
452D370G01
452D370G01
5925-00-796-4371
5925-00-796-4371
5925-00-796-4371
452D371 G 1 3
452D37 1 G 1 4
452D371 G 1 5
5925-00-789-37 1 8
5925-00-789-37 18
5925-00-789-37 18
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
4520371 G 1 8
4520371 G 1 9
4520371 G20
452D371 G 2 1
452D37 1 G 2 2
452D371 G23
5925-00-795-4958
5925-00-839-0289
5925-00-795-4957
5925-00-839-0290
5925-00-796-4439
5925-00-789-371 8
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
592 5-00-831 -8801
452D37 1 G24
452D371 G 2 5
452D37 1 G26
452D371 G27
29B2710G06
5925-00-839-0291
5925-00-839-0292
5925-00-839-0293
5925-00-690-7568
5925-00-831 -8800
4520371 G28
4520371 G29
4520371 G30
5925-00-852-7809
5925-00-795-4956
..............
5925-00-248-1 425
5925-01 -031 -9909
5925-01 -229-4448
5925-01 -235-071 0
5925-0 1 - 1 92-3985
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
650 1 300
1 770 3550
650 1 300
1 850 3800
Non-Auto
31 3C682G24
31 3C682G25
31 3C682G26
31 3C682G27
31 3C682G36
5925-01-1 73-2587
5925-01-21 0-5267
. .. ... . ....
5925-01 -272-3805
.. ...... . . .
452D370G02
452D370G02
452D370G02
452D370G02
452D370G04
. . . . . . . . . . . . . . .
6 5 0 1 300
�
National
Stock No.
National
Stock N o.
31 3C682 G 1 8
31 3C682G 1 9
31 3C682G20
31 3C682G21
31 3C682G22
31 3C682G23
Three-Pole 500 Volts Ac, 250 Volts
T r i p Unit Only
Style
N u m ber
1 30 0
4 1 00
1 300
41 00
1 300
4 1 00
650
2250
650
2250
650
2250
.E
1 300
3900
1 300
3900
1 300
3900
1
\
Breaker Frame Only<D
Style
N umber
5925-00-793-6865
5925-00-1 75-5058
5925-00-064-7834
G enerator Circuit Breaker Applications
lec
1 1 75 2350
1 950 3900
. . . . . . . .
Three-Pole 500 Volts Ae, 250 Volts
1 25 - N
1 25 - N M
1 50 - N
1 50 - N M
1 75 - N
1 75 - N M
5925-01 -233-6525
31 3C682G09
31 3C682 G 1 0
31 3C682G 1 1
3 1 3C682G 1 2
31 3C682G31
Two Pole 500 Volts Ae, 250 Volts
1 00 - N G
1 60 - N G
2 50 - N G
Stock No.
tri
1 25 - N
1 25 - N M
1 50 - N
1 50- N M
1 75 - N
1 75 - N M
I
National
ca
I
Ins!. Trip Setting - Amps
lP
List Prices See Price List 29-020
Ac
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
S pecificat i o n : M I L- C - 1 7361
1 25-250 A m peres
500 Volts Ac and 250 Volts De
Two a n d T h ree- Pole
'
Page 29
Types AQB -A250, N QB -A250
250 Volts De, 500 Volts Ac
250 Amperes M aximum, 20,000 Am peres I. C.
A Q B -A250 a n d N O B -A250 B reakers
Cont.
Ampere
Rating
29-220
De
. . . .. .
1
Generator Circuit B reaker Applications
31 3C682G28
31 3C682G29
31 3C682G30
5925-01 -080-2226
5925-0 1 - 1 04-4625
.. . .. .. .. .. .. .
452D370G02
452D370G02
452D370G02
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
1
N ot e : Breakers with ratings other than than those given on this page are considered as special and full description data must be provi d ed
G) Styles listed include slip-type connectors for rear connections. Order front terminal connectors sepa rately if required;
see page 30. No additional charges for front connectors ordered with breakers o r frames.
® Type NQB-A250 non-automatic.
.
.c
om
Tec h n i ca l Data
29-220
Page 30
AQB-A250 and NOB-A250 Breakers, Conti n u ed
List Prices See Price List 29-020
Instantaneou s
Tnp Settmg
in AmperesCD
Low
High
I
Breaker Frame Only®
Complete Breaker®
National
Stock No.
Style
N umber
Style
N umber
National
Stock No.
452D370G01
452D370G01
452D370G01
452D370G01
452D370G01
5925-00-796-437 1
5925-00-796-437 1
5925-00-796-437 1
5925-00-796-437 1
5925-00-796-437 1
400 Cycle, Two-Pole, 500 Volts Ac
1 25 - N H
1 50 - N H
1 75 - N H
225 - N H
250- N H
1
91 0
910
91 0
91 0
91 0
1
1
1
1
1
560
560
560
560
560
1
31 5C574G03
31 5C574G05
31 5C574G07
31 5C574G09
31 5C574G 1 1
1
400 Cycle, Two-Pole, 500 Volts Ac Generator Circuit Breaker Applications
3420
3420
4200
31 5C574 G 1 3
3 1 5 C574 G 1 4
31 5C574G 1 5
........ .. ....
. . . . . . . . .. . . . .
. ....... .. .. ..
400 Cycle, Three-Pole, 500 Volts Ac
91 0
91 0
91 0
91 0
91 0
1 25 - N H
1 50 - N H
1 75 - N H
225- N H
2 50 - N H
I
1 560
1 560
1 560
1 560
1 560
1
31 5C574 G 1 8
31 5C574G20
31 5C574G22
31 5C574G24
31 5C574G26
5925-01-075-8931
5925-01 - 1 00-4027
5925-01 - 1 93-6055
1
452D370G01
452D370G01
452D370G01
5925·00-796-437 1
5925-00-796-437 1
5925-00-796-437 1
452D370G02
452D370G02
452D370G02
452D370G02
452D370G02
400 Cycle, Three-Pole, 500 Volts Ac G enerator Circuit Breaker Applications
2020
2020
2520
3420
3420
4200
31 5C574G28
31 5C574G29
31 5C574G30
.... .. .. .. .. ..
...... .... ....
.... .. .. .. .. ..
452D370G02
452D370G02
452D370G02
National
Stock N o .
457D446G03
457D446G05
457D446G07
457D446G09
457 D446G 1 1
...........
.
. .
· · · · · · · · · · · · · ·
..............
..............
......... .....
· · · · · · · · · · · · · ·
457D446G 1 3
457D446 G 1 4
457D446 G 1 5
5925-00-758-6227
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
5925·00-789-37 1 8
5925-00-789-37 1 8
457D446 G 1 8
457D446G20
457D446G22
457D446G24
457D446G26
5925-00-803-5491
5925-00-803-5488
5925-00-899-9904
5925-0 1 - 1 93-6056
5925-0 1 - 1 49-4269
5925-00-789-37 1 8
5925-00-789-37 1 8
5925-00-789-37 1 8
457D446G28
457D446G29
457D446G30
5925-00-238-51 98
5925-00-803-5489
..... .........
· · · · · · · · · · · · · ·
ar
1 00 - N G H
1 60- N G H
2 50 - N G H
Style
N umber
an
2020
2020
2520
tM
1 00 - N G H
1 60 - N G H
2 50 - N G H
Trip Unit Only
ua
ls
I
Cont.
Ampere
Rating
Switch board M o u nting
Complete breakers a n d frames incl ude mounting hardware. Female s l i p connectors are
mou nted in breaker base to plug onto stud projections of terminal mounting block assem­
blies. Order one mounting block assembly for each end of breaker.
I
One Stud Assembly complete with 4 n uts
Terminal Mtg. Block ( N o Studs)
Mounting Block and Stud Set (3 Studs)
Style
N u mber
National
Stock No.
lP
Description
I
ca
1 631 443
31 3C68 1 G01
31 3C680G02
( N et Weight - 2 10 Lbs.)
Front C o n n ected B reakers
For connections made at front termin als, pressure-type lugs req u i red. If specified o n same
order, connectors furnished n o charge. One con nector per terminal . Select below.
N40- N 7 5
N 1 00- N 1 25
N 1 50-N200
Amps
1 25
1 50 - 1 7 5
250
I
I
I
Description
Solderless
Connector
K it to Co nvert A O B Frame to N O B
B reaker
Poles
National
Stock No.
3
I'
I
Style
N umber
tri
I
20B305 5 H 1 4
20B305 5 H 1 5
20B305 5 H 1 6
lec
1
Cable
Range
I
I
· ............
National
Stock No.
.
..............
..............
Net
Weight
.E
10 Lb.
CD For 400 cycle breakers with higher i n stantaneous trip ratings, refer to Westi nghouse.
® Styles listed include slip-type connectors for rear connections. Order front terminal connectors separately if
required. No additional charges for front connectors ordered with breakers o r frames.
ww
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Westi n g h ouse E l ectric Corporation
Distribution and Control B u s i n es s U n i t
Electrical Components Division
Pittsburg h , Pennsylvania, U . S .A. 1 5220
July 1 99 1
.c
om
Tec h n ical Data
29-220
Westinghouse Electric Corporation
Distri bution a n d Control B u s i n ess Unit
E l ectrical Components Division
Pittsb u r g h , Pen nsylva n i a , U . S.A. 1 5220
AOB -A250 a n d N O B -A250 B reakers, Conti n ued
Contact Westingho use for o t h e r rati n g s o r
types of m o u nting.
.E
lec
Technical Manual - NAVSHIPS No. 3622164: This booklet per M I L-M- 1 507 1 . W h e n
req u i red, o rder BVR-TM-379A.
w
Voltage
Range
1
I
Style
N u mber
452D377G05
tM
24- 32
90- 1 30
an
28 V De
1 1 5 V Ac
1 20 V De
450 V Ac
90- 1 30
360- 500
I
452D377G07
I
National
Stock No.
5925-00-83 1 -8808
5925-01 -007-5836
U n d ervoltage Device: Automatically trips breaker when line voltage drops below 40 to
60% of normal. After u n dervoltage coil has dropped out and tripped breaker o n red uced
voltage, it automatically resets by breaker action. ( If undervoltage coil is energ ized to 80%
of norma l ) . Select device below. Net weight., 1 . 1 2 lbs.
Nominal
Voltage
450 Ac,
60 Cycle
250 De
33 De
I
Voltage
Range
360-500
I
Pickup and
Seal Volts
(Mi nimum)
360
1 75-355
30- 36
1 50
22
I
Dropcut
Voltage
290
45
25
5
Max.
Min.
Min.
M in.
I
Style
N umber
National
Stock
N u mber
452D837G01
5925-00-920-3099
452D837G02
452D837G03
5950-00-790-4869
I n d i v i d u a l R e productions: When required, reproduction of master drawings, outline
drawings and certification sheets can be ordered as follows:
Item
1
2
3
4
tri
- M o isture - Resistant Treat­
(JAN -T- 1 52; J A N - C- 1 7 3 or M I L­
If specified, contact Westing house.
parts are coated; trip u n its are not
ww
I
ca
Auxiliary Switch : The most commonly used,
when requi red, is style 452D379G02, national
stock n u m be r 5930-00-732-840 1 . I ntern a l ly
mou nted switch is used to open or close
control circuits a s breaker operates and is
provided with "A" and "B" contacts. "A"
contact i s norma l l y closed when breaker is
closed and open when breaker i s o pe n ; " B "
i s normally open when breaker is closed
and closed with breaker open. It has the
following rati n g at given volta ges: 15 a m p
- 1 25, 250 o r 460 volts Ac; '12 a m p- 1 25 volts
De; % a m p-250 volts De. Net weight, . 1 7 l b .
Nominal
Voltage
ar
M echan ical I nterl ock : I f mechanical
interlock (switchboard use) is desired for a
pair of brea kers, order by description. ( N ot
submitted for Navy approval.)
Shunt Tri p : S h u nt trip attachme nts fo r tripping the breaker electrically from a remote
point are l isted in ta ble below. S h u nt trips have momentary rati n g only and for protection
m u st be conn ected i n series with a u x i l i a ry switch. An Auxiliary Switch is i ncluded in the
s h u nt trip n u m b e rs shown below. Do not order sepa rate ly. Net wei g ht, .70 l b .
lP
Additions
H a n d l e Lock : If required, order style
1 7 201 0 1 . One furnished no charge per
1 0 breakers ordered, when requested. N et
wt., . 1 5 1b.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Types A O B - A250, N O B -A250
250 Volts De, 500 Volts Ac
250 Amperes Maximum, 20,000 Amperes I . C .
J u ly 1 99 1
Supersedes Tech nical Data 29-220,
pages 31 -32, dated April 1 991
M a i led to : E , D, C/29-200A
Fungus
m ents:
V- 1 73 ) :
External
treated.
Page 3 1
I
I Description
I
Full size photolithic tracing of master drawing on vellum
Outline and drilling plan on v e l l u m
Certification data on v e l l u m
Reproductions of items 1 , 2, or 3
D ra w i n g s Ava i l a b l e : Master drawing 900 - J -376; front and rear connected breaker out­
l i ne, dri l l i n g and wiring diagram 452 - D -834.
Orde r i n g I n fo rmation: Page 4
N et We ig ht, Lbs.
AOB Complete, 3- Pole A250
NOB Complete, 3 - Pole N 250
3 - Pole AOB, NOB Frame
AOB Trip U nit, 3 - Pole
20.50
1 7.50
1 7 .00
3.50
.c
om
Tec h n i ca l Data
29-220
Page 32
O u t l i n e D i m e n s i o n s A O B -A250 B reaker
ua
ls
line End
I
Mtg.
Screws
H a ndle locki n g Device
'--1--�----r---IH- 4-20
Load End
Front Sheet
ar
Visible amp rating
interchangeable
trip unit
See wiring diagram
and dril ling plan
4 Nuts and 1 washer supplied with stud
tM
Frame
Nameplate
an
11
Warning
Nameplate
)
Circuit Br
( N ot Su pplied With
ea k e r
D r i l l i ng Plan
B locks
Front Sheet D r i l l i n g Template
mounting blocks
3�
�1 5
Front co�necti ons
are on 24 centers
j C
Rearconnections
il !2 are on 3"centers
�
lec
1
Front Connected Solderless
Ter m i n a l s Identification
Style Number
Cable Range A
B
MCM
Min
76
50
20B3055H1 5
1 25
20B3055H 1 6
200
.E
Max
20B3055H 1 4
c
1 2'Y,,
6"ho
521h,
100
13
61Y,.
&Y,,
1 50
1 3'Ao
7%.
8%.
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Front Connected Terminals are not Supplied with
Circuit Breaker
ww
1i oia. 3hales
tri
Flat washers, lock
washers and nuts
supplied with terminal
ca
lP
For Terminal M o u nting
far megger test
Wiring D iagrams
AQB
NOB
line End
line E n d
JU }H
load End
load End
�))
When Sh•mt Trip and Auxiliary
Switch is Provided
When U nder-Voltage
Release is Provided
r - - - - - - - -,
I
:
r
r - -- - - - -,
a_nd B uxiliar i l l
f. I, : Asw1tch 3Aleads y 1 y I. l,l :
1 18" long ---._ l ) ) ) :
I 1 I
1
n er a ta
: m�
ase
_ Shunt'
�wffll
leads a
•
[__
_
:
...J
U d
re l e
v
l
2
ge
18" l ng
L__
•
:
_J
Note:
The auxiliary switch must be used with each shunt
trip. Connect one side of shunt trip in series with "A"
contact (Closed when breaker is closed) of auxiliary
switch when connecting to power supply.
trip 2
leads 18" long
Westi n g house E l ectric Corporati o n
Distri bution a n d Control Busi ness U n it
Electrical Co m po n ents Division
Pittsburgh, Pen nsylva nia, U . S .A. 1 5220
J u ly 1 991
Type A Q B - L F 1 00, 1 00 Am peres M aximum,
Type A Q B - LF250, 250 Amperes Maximum,
500 Volts Ac, 1 00,000 Amperes I . C.
ar
lP
ca
tri
A O B - L F1 00 fused Navy
circuit breaker
N ote: A Q B - LF1 00 breakers are sold for
replacement o n ly . They a re n o longer
o n Navy Q u a l ified P rod uct list.
Descri pt i o n
These breakers a r e essentially standard Navy
circuit breakers incorporating c u rrent l i mit­
ing fuses i n one compact device. The fuses
are mou nted i n a removable molded hous­
i n g which plugs into and becomes an
integral part of the breaker. Fuses are easily
replaced from the front sim ply by loosening
four screws and pulling out the fuse
housi ng.
an
Like standard Navy brea kers, they are de­
signed for use i n switchboards, load centers
a nd panel boards.
AQ B - L F circuit breakers are available in
three-pole desig n and for rear connection
only.
tM
A Q B - LF1 00 a n d A Q B - LF250 B reakers
A p p l ication
AQB - LF1 00 a nd AQB- LF250 circuit break­
ers are for use in low voltage distribution
systems where available fault current ex­
ceed the interrupting rati ngs of standard
molded case breakers but does not exceed
1 00,000 a m peres.
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Mai led to: E, C/1 905/ P L
A Q B - LF250 fused N avy circuit
breaker
lec
F u s e T r i p Lever
Instantaneous T r i p
Adjusting Wheels
S l id e Type
Connectors for
F u s e Contacts
An interlock prevents the breaker being
closed if a ny of the three fuses are blown
and the fuse housing is so designed that all
three fuses m ust be u n blown before the
housing can be mounted in its correct
position on the breaker. Removal of the fuse
housing automati cally opens breaker and
provides visual assurance that the circuit is
disconn ected.
O peration
The thermal mag netic trip u n it of the sta nd­
ard breaker provides protection o n overloads
and short circuits below a predetermined
value without affecting the fuses. H owever,
these specially coordinated fuses assume the
fault cleari ng duty on high m a g n itude short
circu its a nd extend the interrupting capacity
to 1 00,000 a mperes.
The common trip feature of the circuit
breaker is retained so that a l l poles o p e n
when a ny fuse blows. Fast a cti n g current
l imiting fuses clear s hort circuits i n less than
one- half cycle. Conseque ntly, peak let­
through cu rrents are greatly reduced a nd
bus-su pporti n g members or current carrying
parts do not have to be desig ned to meet
maxi m u m peak current.
.E
w
Technical Data
29-220
Page 33
October, 1 978
Su persedes Price List 29- 220, pages 33- 34,
dated J u ly 1 , 1 974.
ww
.c
om
8
West i n g house E l ectric Corporation
Low Voltage Breaker Division
Beaver, Pennsylvania 1 5009
Fuse Plug- I n
Contacts
Fuse Housing
U ni t R e m oved
Current L i m it i n g
Fuses
Page 34
A Q B - L F1 00 Fused B reaker Specification : M I L- C - 1 7361
1 5 - 1 00 Am ps, 500 Volts Ac, 60 Cycles, T h ree- Pole, I nterru pting R ati n g : 1 00,000 Amperes
AQB - LF1 00 breakers are designed for the same appl ication as the AQB -A1 00 ( non -fused)
circuit breaker except that they may be applied on circuits where fault cu rrents up to
1 00,000 amps are avai lable. B reakers designated by the suffix " D F" in the table have setti ngs
designed for the protection of feeder c i rcuits and those followed by "D" have hig her mag­
netic settings to a l low for motor starting.
Net Prices See Price List 29- 020
lnstantaneous
Trip Setting
i n Amps
Low
Breaker Complete
------
Style
N umber@
Breaker Frame®
Trip U nit
Style
N umber
Style
N u mber
National
Stock N o .
Fuses
National
Stock N o .
an
Cont.
Amp.
Rating
ua
ls
Note: A Q B - LF1 00 breakers a re sold for replacement o n ly. They a re n o l o n g e r o n
Navy Q u a l if i ed P rod uct l ist.
High
Three-Pole 500 Volts A c
.c
om
Technical Data
29-220
Style
N u mber@
Quant.
Req.
90
1 80
1 05
21 0
452D391 G 1 6
452D391 G 1 7
452D390G02 H5925-00- 6 1 7 - 83 1 2
452D390G02 H5925-00- 6 1 7-831 2
452D385G 1 3
452D384G 1 3
H5925-00-849-8481
H5925-00-6 5 5 - 1 1 56
31 3C743H02
31 3C743H02
3
3
25 - D F
25-D
1 80
300
21 0
350
452D391 G 1 8
452D391 G 1 9
452D390G02
452D390G02
H 5 925-00-61 7-831 2
H5925-00 -61 7-831 2
452D385G 1 5
452D384G 1 5
H5925-00-65 5 - 1 1 57
H5925-00-65 5 - 1 1 58
31 3C743H02
31 3C743H02
3
3
50-DF
50-D
300
600
350
700
452D391 G20
452D391 G 2 1
452 D390G02
4 5 2D390G02
H5925-00-61 7 -831 2
H5925-00-6 1 7 -831 2
452D385 G 1 7
452D384 G 1 7
H5925 -00-6 5 5- 1 1 59
H5925-00-65 5 - 1 1 60
3 1 3C743H03
3 1 3C743H03
3
3
75-DF
75-D
450
525
900 1 050
452D391 G 2 2
452D391 G23
452D390G02
452D390G02
H5925-00- 6 1 7 - 831 2
H5925-00 -6 1 7 -831 2
452D385G20
452D384G20
H5925 -00-65 5- 1 1 61
H5925-00-65 5 - 1 1 62
31 3C743H03
31 3C743H03
3
3
1 00 - D F
1 00 - D
600
700
1 200 1 400
452D391 G24
452D391 G25
452D390G02
452D390G02
H 5 925-00-61 7-831 2
H5925-00-61 7 - 83 1 2
452D385G23
452 D384G23
H5925-00-655- 1 1 63
H5925-00-655- 1 1 64
3 1 3C743H03
3 1 3C743H03
3
3
ar
tM
1 5- D F
1 5-D
lP
® Breaker frame consists of frame with its fuse housing u n it and slip type connectors for back connection. but
does not incl ude trip unit. fuses or mounting blocks. Order these separately, trip u nits and fuses from table
above and mounting blocks from listings below.
@ National stock number not assigned.
ca
Switc h board M o u n t i n g
B reaker frame incl udes mounting hardware. Fema l e slip connectors are mou nted on the
rear for plugging onto stud projections of te rminal mounting block assemblies. Order one
for each end of the breaker.
Description
Style N u mber
National Stock No.
One Stud Assembly Complete with 4 Nuts
Terminal Mounting Block (No Studs)
Mounting Block and Stud Set (3 Studs)
1 631 442
1 764 240
301 P272G01
H 5 940-00-501 -91 20
None Assigned
None Assigned
tri
Add itions
I n dividual Reproductio ns: When required, reproductions of master drawings, outline
drawings and certification sheets can be ordered as follows:
Description
1
2
Full Size Photolithic Tracing of M aster Drawing on Cronoflex (Mylar)
Outline and Drilling Plan on Cronoflex (Mylar)
Certification Data o n Cronoflex (Mylar)
Van Dyke Negatives on Items 1 or 2
Reproduction of Items 1 . 2 or 3
3
4
5
lec
Item
.E
D rawi n g s Ava i l a b l e : Master drawing 900J 377; outl i n e drilling plan and wiring diagram:
451 D71 1 .
H an d l e Lock ( Fo r S h i pboard M a i ntenance Use O n l y ) : Order style n u m ber 1 6 1 4 485.
F u n g us- M o isture- Resistant Treatments ( J A N -T-1 52; J A N - C - 1 73 o r M I L- V - 1 73 ) :
I f specified, contact Westi ng house. External parts are coated; trip u n its are not treated.
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Tec h n ical M a n u a l : NAVS H I PS n u mber 362 - 2 1 66. This booklet per M I L- M - 1 507 1 . When
required, order B V R -T M -380.
R e p a i r P a rts: Requ irements per vessel i n ­
clude ( 1 ) o n e com plete trip u nit fo r each
1 0 breakers or fraction thereof of a specified
rati n g (2) one fuse for each 20 fuses with a
m i n i m u m qua ntity of nine fuses of a speci­
fied rating (3) one fuse housing u n it for
each 20 breakers or fraction thereof.
Fuse H o using U n it ( N o F u ses)
Style N umber
National Stock No.
31 3C742G01
H6605-00-799-3521
S pare Parts Boxes - Per M I L- B -233:
After determ ining box size or n u mber of
spare trips to be stored therein. contact
Westi n g house.
Net We ig ht - Lbs.
AQB B reaker Complete 3 - Pole
AQB B reaker Frame Only Com plete
with Fuse U n it Assembly
Without Fuses
Trip U n it 3 - Pole
Fuse U n it Assem bly Without Fuses
One M o u nting B l ock with 3 Studs
Current Limiting Fuse
Circuit Breaker H a ndle
Locking Device
1 3.62
9.68
2.62
1 .6 2
1 .6 2
.45
.25
Technical Data
29-220
Page 3 5
October, 1 978
Supersedes Price List 29- 220, pages 3 5-36,
dated J u ly 1 , 1 974.
Type AQ B - LF1 00, 1 00 Amperes Maximum
Type A O B - LF250, 250 Amperes Maximum
500 Volts Ac, 1 00,000 Am peres I. C.
A Q B - L F250 Fused B reaker Specificati o n : Ml L - C - 1 7361
o n circu its with available fault currents up to
1 00,000 amps. Only three-pole breakers
are available.
These fused breakers are designed for appl i ­
cations similar t o those for A O B - A250
( n o n -fused ) . H owever, because of their
cu rrent limiting fuses, they can be applied
U ndervoltage release devices, shunt trips
and/or auxil iary switches are available for
the AOB - LF250 and can be easily installed
i n the field.
Breaker C o m p l ete
Breaker Frame@
Style
N umber
Style
N u mber
National
Stock N o .
High
tM
N et Prices See Price List 29- 020
Low
Those breakers identified by the suffix " L M "
i n the price table have hig her magnetic set­
tings for motor starting while those carrying
the suffix L are set for the protection of
feeder circuits. Test report number 541 9-27.
an
1 25-250 A m ps o 500 Volts Ac,
60 Cycles o T h ree- Po l e
I nterrupting Rati n g : 1 00,000 Amperes
l nstantaneous
Trip Setting
i n Amps
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a iled to: E, C/1 905/ P L
Cont.
Amp.
Rating
.c
om
8
West i n g house Electric Corporation
Low Voltage Breaker Division
Beaver, Pennsylvania 1 5009
"
"
Trip U n it
Style
N u mber
Fuses
Nati onal
Stock No.
Style
N u mberaJ
Quant.
Req.
ar
Three-Pole 500 Volts Ac ( Refer to Westing house for Two-Pole Styles a n d Prices)
6 5 0 1 300
1 500 3000
31 3C748G 1 8
31 3C748G 1 9
452D820G02
452D820G02
H 5 925-00- 6 1 7 - 83 1 3
H5925-00-61 7 -831 3
452D821 G 1 8
452D821 G 1 9
H5925-00-65 5 - 1 1 65
H5925-00-65 5 - 1 1 66
3 1 3C743H01
3 1 3C743H01
3
3
1 50 - L
1 50 - LM
6 5 0 1 300
1 500 3000
31 3C748G20
31 3C748G21
452 D820G02
452D820G02
H5925-00-61 7 -831 3
H 5 925-00-61 7 - 831 3
452D821 G20
452D821 G 2 1
H 5 925-00-65 5 - 1 1 67
H 5925-00-65 5 - 1 1 68
3 1 3C743H01
3 1 3C743H01
3
3
1 75 - L
1 75 - LM
650 1 300
1 500 3000
3 1 3C748G22
3 1 3C748G23
452D820G02
452D820G02
H 5 925-00-61 7 -831 3
H 5 925-00-61 7 -831 3
452D821 G22
452D821 G23
H 5 925-00-65 5 - 1 1 69
H 5 925-00-65 5- 1 1 70
3 1 3C743H01
3 1 3C743H01
3
3
225-L
225- LM
6 5 0 1 300
1 500 3000
3 1 3C748G24
3 1 3C748G25
452D820G02
4 5 2D820G02
H5925-00-61 7 -831 3
H5925-00 - 6 1 7 -831 3
452D821 G24
452D821 G 2 5
H 5 925-00-65 5 - 1 1 71
H 5925-00-655- 1 1 72
31 3C743H01
31 3C743H01
3
3
250-L
250-LM
650 1 300
1 500 3000
31 3C748G26
31 3C748G27
Net Wt. 32.00 Lbs.
ca
lP
1 25 - L
1 25 - LM
452D820G02 H5925-00-61 7 -831 3
452D820G02 H5925-00 - 6 1 7 - 831 3
Net Wt. 24.50 Lbs.
452D821 G26 H5925-00-65 5 - 1 1 74
452D821 G27 H5925-00-65 5 - 1 1 73
Net Wt. 3.00 Lbs.
31 3C743H01 3
31 3C743H01 3
Net Wt. 1 .50 Lbs.
@ B reaker frame consists of frame with its fuse housing unit and slip type connector for back connection. but does not include trip unit. fuses or mounting blocks
Order these separately. trip units from table above and mounting blocks from listings below.
tri
® National stock number H5925-00-624-3049.
lec
Switch board M o u nt i n g
Breaker frame incl udes mounting hardware. Female slip connectors are mounted on the
rear for plugging onto stud projections of terminal mounting block assemblies. Order one
for each end of breaker.
Description
One Stud Assembly Complete with 4 Nuts
Terminal Mounting Block ( N o Studs)
Mounting Block and Stud Set (3 Studs) ®
Style
Number
National
Stock No.
1 631 443
3 1 3C681 G 0 1
31 3 C680G02
H 5 940-00-501 - 9 1 1 9
None Assigned
None Assigned
.E
® Net Weight 3.00 Lbs.
A d d itions
I n d iv i d u a l R e p roductions: When required, reprod uctions of master drawings, outline
drawings, and certifi cation sheets can be ordered at the following prices:
Description
1
2
3
4
5
Full size photolithic tracing of master drawing on cronoflex (mylar)
Outline and drilling plan on cronoflex (mylar)
Certification data on cronoflex (mylar)
Van Dyke negatives on items 1 o r 2
Reproduction of items 1 , 2 or 3
w
Item
ww
D ra w i n g s Ava i l a b l e : M aster drawing 900 - J - 379; breaker outline, dri l l i ng and wiring
diagram 451 D 2 50.
H a n d l e Lock ( Fo r s h i pboard m a i ntenance use o n l y ) : Order style number 1 72 0 1 01 .
Net weight . 1 0 lbs.
Auxi l i a ry Switch: For description see AQB -A250 breaker, page 25. Style n umber
4 5 2 D 379G02 same as for AOB -A250. Net weight . 1 7 lbs.
S h u nt Trip Attachment: To order refer to AOB -A250 breaker on page 25. Style n u mbers
and net prices are same as those for AQB - A250. Net weight .70 lbs.
U nd e rvoltage Device: To order, refer to
AOB -A250 breaker on page 2 5 . Style
numbers and net prices are same as those
for AOB -A250. Net weight 1 .1 2 lbs.
Tech nical M a n u a l : N AVS H I PS number
362 - 2 1 65. This booklet per M I L- M - 1 5 07 1 .
When req u i red, order BVR- TM-38 1 .
R e p a i r Parts: Requirements per vessel i n ­
c l ude: ( 1 ) o n e complete trip u n i t f o r each
1 0 breakers or fraction thereof of a specified
ratin g . (2) one fuse for each 2 0 fuses
ordered with a m i n i m u m of nine. (3) one
fuse housing u n it for each 2 0 breakers or
fraction thereof.
Fuse H o u s i n g U n it ( N o F u ses)
Style
N umber
Stock No.
Net
Weight
452D832G01
None Assigned
4.50 Lbs.
National
Spare Parts Boxes: Per M I L- B -233. After
determin ing box size o r nu mber of s pare
trips to be stored therein, contact Westing­
house.
O rdering I n formation: See page 4.
N et Weig hts : See listings i n tables and
additions.
.c
om
8
Technical Data
29-220
Page 36
O u t l i n e D i mensions AQB- LF1 00 B reakers
Jl
16
5
8
tg
Line End
M . b o l t s supplied
w i t h bre a k e r,
e xt e n d
b e low bot tom
5 of
64
�
br e a k er
Baits
Support blocks ore not supplied
with breaker, but must be ordered
separately, refer to dwg. I A4457
all ports necessary Ia convert a
breaker are i ncluded
1
ua
ls
J - 20 4
an
S l i p Contact Assembly
Flat washers, lock washers and nuts
supplied with terminal mig. block
tM
0 Mig
� - 2screws
(c a p ! i ve l
Visible
amp rating
i n t e rcha n g e a bl e
trip unit
Front Cover Cutout
lP
ar
Drilling Plan
For Mo unting Panel ( R ear Connected)
R Mm.
.
/
ca
9
i6-
7 o·
;e;
- 10.
4 ho l e s �
f r om c e n t e r p o l e
.E
Remova ble fuse
unit assembly :=.;q�� Removable
trip unit
Load End
w
AQB B reaker with Over- C u rrent.
S h o rt C i rcuit Trip a n d F u ses
ww
Westing house E lectric Corporation
Low Voltage B reaker D ivision
Beaver, Pennsylvania 1 5009
L,'k - Minimum
C i rcuit B reaker H a n d l e Lock i n g Device
lec
Wiring D i agram
Wiri ng as Shown is for a 3 Pole
Breaker F o r 2 Pole B reaker O m it
M iddle Pole
tri
� - R. Min.
load End
Reverse position of lock to prevent
breaker from opening
(Not supplied with
circuit breaker )
s lot
�·
<D
:!'
c.
Types AQB- LF1 00, 1 00 Amperes Maximum,
Types AQB- LF250, 250 Amperes Maximum
500 Volts Ac, 1 00,000 Amperes I . C.
October, 1 978
S u persedes Price List 29- 220, pages 37 -38,
dated February 1 7, 1 969.
O u t l i n e D i mensions A O B - LF250 B reakers
f -20 Mig. s c rews
Warning
nameplate
n o m e p1 a te
_:_����t='��=i)
Page 37
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Line E n d
an
Frome
Tec h n i ca l Data
29-220
ua
ls
Mai led to: E, C/1 905/ P L
.c
om
8
West i n g house E l ectric Corporati o n
Low Voltage Breaker D ivision
Beaver, Pennsylvania 1 5009
T
Support blocks ore not suppl i e d
w 1 t h b r e a k e r , but m u s t be
ordered separately refer to
dwg 313C680. a l l po r t s
n e cessa r y to conver t a b k r
are 1nc lude d
ar
tM
4 Nuts and I wa s he r s
,------,=+-- s u p p l i e d w1lh stud
Load End
lP
D r i l l i n g Plans
For Terminal Mounting B locks
ca
(
and nuts supplied with terminal
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Flat woshers,lockwoshers
mounting blocks
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.E
Typical Wiring Diagrams
Wiring as Shown for 3 Pole Breaker
For 2 Pole Breaker Omit M iddle Pole
Removable
ww
tr t p u n i t
Recommended
m i n i mum distance
be t ween u n i t s
Line E nd
_9it_-----l
tri
"*���H
Front S heet D r i l l i ng Template
'--+--1'--.P:.>l A Q 8 Breaker wi t h
..---±---±----"� over cur rent , s h or t
'--'!'-��'--' c i r c u i t
t r i p and f uses
of breaker
Bottom o f
mtg block
Bottom of breaker
It Di o.
6 holes
Load E n d
H a n d l e locking Device
( N ot Supplied With Circuit Breaker)
When U nder-Voltage
Release is Provided
IS �
,A
When Shunt Trip
and Auxil iary
p rOVI. d d
. h
S WltC
.
A and 8 au•.
l e ads
switch 3
l8" lon11
YY Y
A II
Shunt t r i p
2 l eoods 1 8 " l o ng
�
Note:
The a u x . s w i t c h m u s t be u s e d w i t h e a c h
shunt t r ip, connect one side of s h u n t t r i p
i n sertes w i t h "A11 c o n t a c t (closed when
breaker i s c losed ) of a u x. . switch when
connecting f o power supp l y .
.c
om
Tec h n ical Data
29-220
Page 38
C h aracteristic T r i p p i n g C u rves
I
I II 11 1 1 1 1
Percent of Trip
E l e m en t Rating
Tr i pping
T1me
25 Seconds ! 2 5 %
Less Than 1 Hour
More Than 1 Hour
600
225
1 30
1000
1 00
Operating Characteristics
Therrnol Magne t i c and Current
Li m i t i n g Fuse 5 0 ° C Ambient
Cold S t a r t A c Instantaneous
Tr i p Range of 2 5 0 Amp. Trip
Unit Shown
6 50 to 1300 Amp.
- - - 1 5 0 0 to 3000 A m p.
See Table For Instantaneous
Range of Other Trip Unit
\
40
50
30
20
�
, I'\
10
5
4
3
2
5
4
3
2
1\
.I
.05
03
.0 2
.0 I
100
300
�
L
:�
�
600
\
1200
100
11 1 1 I I
1\�
50
40
30
20
2 2 5 Amp
1--
1--
150 Amp
1 2 5 Amp.
I�
I�
p
t-:
3000
-
5
4
3
2
5
4
3
2
I
03
.02
\\�
30000
10000
100000
.0 I
lec
I\
'll
�
100
300
600
3.0
2.5
2.0
7 5 Amp
1.0
2 5 Amp.
15 Amp.
\
\
,\ \
l\ l\ �
\ \ "
3000
30000
10000
100000
vI-"
1.5
100 Amp.
� � �'1\
1200
Percent Rated Current
.E
w
\ �
� \
II
II
05
\\
3.5
I I
50 A m p.
I�
H
I
�\
Westing house Electric Corporation
Low Voltage B reaker Division
Beaver, Pennsylvania 1 5009
ww
--
�
I
I
Operating C h a r a c t e r i s t i c s
The r m a l Moqnetics a n d
Current L i m i t i ng Fuse
50° Ambient - Cold Start Ac
Instantaneous Trip at
1 2 0 0 to 1 4 0 0 % Ra t i n g
- - Instantaneous Tr i p at
600 to 7 0 0 % Ratinq
,�
II
I
II
tri
Percent Rated Current
250 Amp
r:::::= 1 7 5 Amp -
I
I
1\
500
400
300
200
Tri p p i n g
Time
2 5 Seconds! 2 5 %
Less Than 1 Hour
More Than 1 Hour
600
225
1 30
10
I
I
I
Percent of Tr 1 p
E l e m e nt R o t � n g
r--
*
0 0.5
tM
1\
500
400
300
200
1\.
ar
1 000
5000
4000
3000
2000
AQB-LFIOO
lP
5000
4000
3000
2000
10000
To determ ine the trip u n it rating to be used,
when the load cu rrent and a m bient are
known, m u ltiply the load current by the
factor obtained from the cu rve below for the
known ambient. The result will be the ideal
trip u n it rati ng. H owever, since trip u n its are
furnished only with standard rati ngs as per
Navy spec., select the standard u n it trip
whose rating is equal to or one rating
higher than the ideal rati ng.
an
AQ B - L F 250
ca
10000
A O B - LF1 00 B reakers
ua
ls
A O B - LF250 B reakers
0
�
0
o
Ambient Temperature, OC
10
20
30
40
50
60
70
80
90 100
Tec h n ical Data
29-220
Page 39
Types AOB-A1 601 , N QB -A 1 6 0 1
500 - 1 600 Am peres; 5 0 0 Volts, 60 H z Ac,
75,000 Amperes I . C .
August, 1981
S u persedes Tech n ical Data 29-220,
pages 39-40, dated October, 1 978
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
M a i l ed t o : E , C/ 1 905/PL
.c
om
8
West i n g h ouse E lectric C o rporat i o n
Low Voltage Breaker Division
B eaver, Pennsylvania 1 5009
A O B -A1 601 a n d N Q B-A1 601
N avy B rea kers
lP
ar
tM
an
500-1 600 A m peres, 500 Volts A - c , 60
Cycles O n ly, 3 - P o l e , 50°C A m bient
I nterru pti n g Rating : 75,000 Amps. A-c
(Without Delayed I n stantaneous)
50,000 A m ps. A - c (With Delayed
I nsta ntaneous)
Specificat i o n : M I L- C - 1 7361
( M od i f i e d )
C l ass : H i S h ock M I L-S -901
( M od i fied )
V i b ration: M I L-STD - 1 67
M aterial and Workmans h i p : M I L- E-91 7
Test Report N u m be r : 2085
Type Continuous I n stantaneous
Trip Setting
Ampere
A- c Amperes
Rating
High
ca
Breaker Only, consists o f :
Frame i lncludes Stabs)
Style
N u m ber
I
National
Stock
N u m ber
lec
Low
tri
N et Pri ces See Price List 29 - 020
3 Pole, 500 Volts, 60 Cycles A-c
Without Delayed Instantaneous Trip
600X
600XM
BOOX
1 000X
1 200X
1 400X
1 600X
1 600
2000
4000
2000
2000
2000
4000
4000
6000
1 2000
6000
6000
6000
1 2000
1 2000
3720522G02
3720522G02
3720522G02
3720522G02 None
3720522G02 Assigned
3720522G02
3720522G02
3720522G02
.E
AQB
AQB
AQB
AQB
AQB
AQB
AQB
NQB
A com plete breaker consists of a breaker plus
mounting base and is available with n u mer­
ous attachments such as electrical operator,
shunt trip, undervoltage release and auxil iary
switches to perform varied auxil iary func­
tions.
Com plete Breaker
Breaker Only
Trip u nits for these breakers have an adjust­
able instantaneous trip and are listed with
and without delayed instantaneous trip for
system coordination.
Trip Uni t
Style
N umber
National
Stock
N umber
3720523G01
3720523G03
3720523G07
3720 524G03 None
3720524G05 Assigned
3720524G07
3720524G09
3720524 G 1 0
With Delayed Instantaneous Trip (XT1 - M in. Time Delay .041 7 - .0458 Sec.)
AQB
AQB
AQB
AQB
AQB
500XT1
800XT1
1 OOOXT1
1 200XT1
1 600XT1
2000
2000
2000
2000
4000
6000
6000
6000
6000
1 2000
1
3720522G02
3720522G02
3720522G02 None
3720522G02 Assigned
3720522G02
1
374021 1 G01
374021 1 G07
374 021 2G03 None
3740212G05 Assigned
3740212G09
w
With Delayed Instantaneous Tri p (XT2 - Max. Time Delay .0708 - .0750 Sec.)
ww
AQB 500XT2
AQB 800XT2
AQB 1 200XT2
AQB 1 600XT2
2000
2000
2000
4000
6000
6000
6000
1 2000
3720522G02
3720522G02
3720522G02 None
3720522G02 Assigned
AOB-A 1 60 1 circuit breakers are designed
for installation i n switchboards for protec­
tion of generators and feeder and branch
circu its.
3740221 G01
3740221 G07
3740222G05 None
3740222G09 Assigned
N QB -A1 601 Breakers have a conti nuous
rati n g of 1 600 a mperes. They are used only
as discon nects since they do not have an
automatic trip device.
Note: Breakers with ratings other than those
l isted above are considered as special and
full descriptive data must be provided.
400 cyc l e breakers a re not ava i la b l e .
Page 40
Mounting Base®
N et Weig hts
Optional Additions®
Undervoltage Release CD : M o unts in rig ht
pole only.
ua
ls
Shunt Trip CD : M o u nts i n right pole o n l y . Has
mo mentary rating o n l y ; co i l leads m u st be
wi red i n series with 1 A co ntact of auxil i a ry
switch.
Description
B reaker Only
AOB
NOB
B reaker Frame ( A O B a n d N O B )
Trip U n i t
AOB
NOB
M ou nting Base Only
E lectrical Operator, 1 1 5 Volt
E lectrical Operator, 450 Volt
S h u nt Trip
U ndervoltage Release
Auxi liary Switch
Cable Con nector
an
Auxiliary Switch: M o u nts i n left po l e only.
4 contacts, a n y co mbi nation of A's a nd B's,
(suppl ied as 2A a n d 2B u n less specifi e d )
8 contacts, a n y combi nation o f A's and B's,
(suppl ied a s 4A a n d 4B u n l ess specified)
tM
Automatic Reset Switch@
F o r use with m ot o r o perator w h e n an auto­
matic reset fu nction is req u i red. Factory i n­
stal led o n ly.
Cable Connector: M o u nts to bus co n n ector
fo r cable co n nectio n . Each lug accepts four
cables, 600 M C M m a x . 1 lug req u i red per bus
connector.
Style N u m be r : 505C706G03
Weight,
Lbs.
1 51
1 48
1 28
23
20
75
27
35
%
1%
1%
3
O rd e r i n g I n formation
When ordering Westingh ouse N avy c i rcuit
breakers consult the check l ist below to
make sure you have provided correct i nfor­
mati o n . You should specify:
ar
For switchboard mounting. I nc l udes back
connectors for switchboard bus a nd male
stabs to engage breaker. M atc hing stabs are
supplied with breaker frame.
.c
om
Tec h n i ca l Data
29-220
Style N u m ber: 373 D307G02
1 . Qu a ntity, West i n g house style n u m ­
b e r a n d N a t i o n a l stock n u m ber of:
Fungus, Moisture Resistant Treatment:
(a) B reaker frame and trip u n it.
(JAN-C- 1 73 o r M I L-V- 1 73) : If s pecified, con­
( b ) M o u nting base.
tact West i n g h ouse. External pa rts a re coated;
(c) Spare breakers or trip u n its. ( Usually
trip u n its a re not treated.
one req u i red for each ten u n its or
Drawings
fraction thereof of each current
rati ng.)
M a ster p l a n : 900J442
( d ) I nstruction books.
S h eet 1 of 4: Breaker O n l y a n d W i r i n g d i a ­
g ra m s
2. S h i pment
S h eet 2 of 4 : T r i p U n it, Cu rves and Attach­
Spec ify transportation means, method of
ments
pa ckag ing and preservation a nd req u i red
S h eet 3 of 4: M o u nt i n g Base and Ca bl e
shi pping d ate.
Co n n ectors
S h eet 4 of 4 : Motor O p e rator
3 . D rawings
Specify q u a ntity of outline or master plan
Individual Reproductions: When req u i red,
d rawings required.
reproductions of sheets 1 thru 4 of m a ster
plan 900J442 can be ordered as follows:
4. I n spect i o n
Type Reproduction
I nd i cate whether N avy inspection is re­
Cronoflex (Mylar Reproducible)
q u i red at factory prior to shipment.
lec
tri
ca
lP
Electrical Operator® <B
Sepia (Brown Paper Reproducible)
Prints (Paper)
.E
Technical Manua l : NAVS H I PS No. 0962-0 1 45000. This booklet per M I L- M - 1 507 1 . When
req u i red, o rd e r BVR-TM-576.
M o u nts to front of breaker for remote opera­
tion. 450 volt Ac rating util izes a tra nsfo r m e r
i n conjunction w i t h a 1 20 v o l t m otor. I f auto­
Dimensions: Pages 4 1 , 42, 43.
matic reset i s desi red, o rd e r the circuit
breaker with optional Automatic Reset Switch Characteristic Curves: Pages 44, 45.
(See Optional Add iti ons)
CD Breaker can be supplied with e1ther shunt tnp or under­
Style
Number(i
1 20 V A-c
450 V A-c
1 37 1 D38G01
1 37 1 D38G03
ww
w
Rating
National
Stock
Number
None
Assigned
voltage release, but not both.
® Can be field mounted.
<t Changed smce prev1ous 1ssue.
�.
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c.
c
�
i:n
Page 41
Types AQB-A1 60 1 , N Q B -A1 601
500 - 1 600 Am peres; 500 Volts, 60 H z . Ac.
75,000 Amperes I . C .
October, 1 978
Su persedes Price List 29- 220, pages 4 1 -42,
dated February 1 7, 1 969
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
Mailed to : E, C / 1 905/ P L
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Tech n i ca l Data
29-220
Westi n g house E l ect ric Co rporat i o n
Low Voltage Breaker Division
Beaver, Pen nsylva nia 1 5009
A Q B a n d N Q B C i rcuit B reaker Frame O u t l i n e D i mensions
N O B -Same except for tnp unit nameplate.
Front Panel Cutout
ar
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an
It of Breaker
lP
}_.f---+- Removable Handle
Extension Supp lied
w1th Breaker
Swi t Chboard Front Pane i
�
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9
-
1
- - - -_
_
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Attachment Leads are brought out through
0ne or more of these Openmgs as Requtred
in th1s Stde for Shunt Trip or Under voltage
Releose and Oppostte S1de for Au xi ltory
Switches, Leads Extend Mintmum of
18 Inches from Breaker
� M in i mum
.r---g -----11-1 --- F�F�g;:-::::=
:: ::;t---Tt
.E
W i r i n g D i agrams
AQB
NQB
Line
i
L1ne
rr\ rr) r
w
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---
-·
-
·
-
I
'
ww
L - - - - - - - - - - _ _ _I
Load
1_ _ _ _ _ _ _ _ -
Reproduced From Drawing
Load
900J442
- --
� t t -·
1��:�: ;- � ) ) ) i
d
r
Sw1 tches
16 Leads
18 I nches
Long
-'
Sheet
When undervoltage
release and auxil iary
switches are provided
�-'
4"A"
' c
·- ! ill
: dik
'
Furntshed wtth a l l
Breakers for Manual
Clos�ng and Opemng
1
of 4
- - - - - - - --
���\
I
�
,
-- ___
:
;_ _ _ _ _
·
__
_
· .
�
'
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4
_ _ _ _ _ _ _
,
1
Undervoltoge
; Release 2 Leads
18 Inches Long
_ -�
When shunt trip and
auxil iary switch
are provided
iJt;�;r-��rn
�/ )
·w
�
1 8 1 nches
Long
::::C
)
:
'
'
'
; Shunt Tr�p
2 Le d
18 ln h s
Long
�:
N ote · The auxil iary switch must be used with each shunt trip. Con nect one
side of shunt trip i n series with "A" contact ( c l osed when breaker is
cl osed) of auxi l i ary switch when con necting to power supply.
.c
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Tec h n ical Data
29-220
Page 42
M o u n t i n g Base O u t l i n e D i mensions
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Top View
1
an
Sw1tch board
Bock Panel
�------ 12� -------
tM
0 0 0
Side View
� 0 1 0 8 Holes
j
a l l Connectors may
ca
lP
ar
( M o u nt 1 n g Bose)
Sw1tchboord
M ou n t 1 n g Angle
�-1 6 To p 4 Holes
tri
( B reaker Mount m g )
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Front View
Cutout
'T'�
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Reproduced From Drawing
Outl1ne of
Mount1ng
Bose
't of
I
I
11
To p E n d of Breaker
2 32/
--r
Hi
I
L--4
ti2
ll_I
I
i 1
,
�-::
Rod1us
,.__ 8
Sheet 3 o f 4
With cable connectors style 505C706G03
l u g capacity-four 600 M C M cables per lug
Breo ker
1 3 32
j
900J442
M ounting Base
F ront Panel Cutout
For Switchboard Back Panel
'
67
'
6 z32r
3
Holes for Megger
Test
5
-i6
0 1 omet e r
.c
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Technical Data
Westinghouse Electric Corporation
Distri bution a n d Control Busi ness U n it
E l ectrical Com ponents Division
Pittsbu rg h , Pen nsylvania, U .S.A. 1 5220
Types AQB-L400QF, AQB-L4000M ;
1 50,000 Am peres I.C. a n d
AQB-LL4000S; 1 00,000 A m p e res I.C.
250-400 Amperes; 500 Volts 60 H z Ac
Mounting Block
Undervoltage Release ( Left-Pole Only)
UVR and Circuit Breaker m u st be o rd e red as
a n i nteg ral u n it
Plug-in Mounting Block, Rear
Connected, Complete
(Required one per load or line
end)
Mounting Block, Molded Base
Only
(For mounting a front con­
nected circuit breaker, or as a
replacement part)
Westinghouse
Style Number
1 230C81 G01
Type
1 230C81 G05
AQB-L400QF w1th 1 1 5 V Ac
Undervoltage Release
Mechanism
•
�Style
estmghouse
N u mber
1 230C83G 1 5
Switchboard Mounting
Breaker frame i nclu des m o u nting h a rdware.
Stud projections a re mou nted o n the rea r of
the breaker for plugging i nto fem a l e s l i p
connectors of term i n a l mou nting block
assembl ies.
1 230C83G16
Handle Lock (For s h i pboard m a i ntenance
u se only) order sty l e n u m be r 1 7201 01 .
tM
AQB-L400QF with 450 V Ac*
Undervoltage Release
Mechanism
I
1 230C81 G04
Front Connected Terminal
(Required three per line or
load end)
504C497G01
AQB-L400QF with 250 V De
Undervoltage Release
Mechanism
1 230C83G 1 8
AQB-L400QM with 1 1 5 V Ac
Undervoltage Release
Mechanism
1 230C83 G 1 9
AQB-L400QM with 450 V Ac*
Undervoltage Release
Mechanism
1 230C83G20
AQB-L400QM with 120 V De
Undervoltage Release
Mechanism
1 230C83G21
AQB-L400QM with 250 V De
Undervoltage Release
Mechanism
1 230C83G22
AQB-LL400QS with 1 1 5 V Ac
Undervoltage Release
Mechanism
1 230C83G 1 1
AQB-LL400QS with 450 V Ac*
Undervoltage Release
Mechanism
1 230C83G 1 2
AQB-LL400QS with 1 20 V De
Undervoltage Release
Mechanism
1 230C83G 1 3
1 220C86G08
1 220C86G09
AQB-LL400QS with 250 V De
Undervoltage Release
Mechanism
1 230C83G14
Auxiliary Switch
1 a/1 b 1 1 5-450 V Ac
2a/2b 1 1 5-450 V Ac
1 a/1 b 1 20 V De
2a/2b 1 20 V De
1 a/1 b 1 1 5-450 V Ac and 1 a/1 b
1 20 V De Combination
1 220C86G01
1220C86G02
1220C86G05
1220C86G06
1220C86G07
Shunt Trip
Type
w
.E
1 1 5 V Ac/28-1 20 V De Shunt
Trip and 1 1 5-450 V Ac Auxil­
iary Switch
1 1 5 V Ac/28-1 20 V De Shunt
Trip and 1 20 V De Auxiliary
Switch
450 V Ac Shunt Trip and
1 1 5-450 V Ac Auxiliary Switch
450 V Ac Shunt Trip and 1 20 V
De Auxiliary Switch
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1 220C86G03
1 220C86G04
lec
Shunt Trip and
1 a/1b Auxiliary Switch (Left­
Pole Only)
Combination
tri
Westinghouse
Style Number
Shunt Trip (Left-Pole only)
(Includes built-in cutoff switch)
1 1 5 V Ac/28 to 1 20 V De
450 V Ac Only
lP
Westinghouse
Style Number
ca
Type
1 220C86G 1 0
1220C86G 1 1
1 230C83G 1 7
ar
Male Slip Connectors
(Replacement part, three per
kit)
AQB-L400QF with 1 20 V De
Undervoltage Release
Mechanism
Auxiliary Switches
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
an
Type
Page 43
ua
ls
J u l y 1 991
S u persedes Technica l Data 29-220,
pages 43-44, dated April 1 991
M a i l ed to : E , D, C/29-200A
29-220
Fungus - Moisture - Resistance Treat­
ments: (JAN-T- 1 52; JAN-C- 1 73 ; M I L-V- 1 73)
If specified contact Westi n g h o u se. External
parts a re coated.
Technical Manual: When requ i red order
1 240C33H0 1 .
Portable Test Kit - Can b e used to function­
ally test the breaker fo r ove rload a n d s h o rt
circu it, w h i l e breaker is m o unted. When
req u i red o rd e r catalog n u m be r STK2.
Individual Reproduction: When requi red
reproduction of outl i n e d rawings and certifi­
cation s heets can be o rdered a s follows :
Item
1
2
3
Description
Outline drawing and drilling plan on vellum
Certification data on vellum
Reproduction of items 1 and 2
Repair Parts:
Net Weight:
*Using externally-mounted step-down transformer
supplied
Item
Circuit Breaker
Motor Operator
Mounting Block
Front Connected Terminals (Set
of Three)
Portable Test Kit
Weight
30 lbs.
22 lbs.
10 lbs.
1 lb.-10% ozs.
12 lb.-14%
ozs.
.c
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Tech nical Data
29-220
w
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tri
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lP
ar
tM
an
ua
ls
Page 44
ww
Westinghouse E l ectric Corpo ration
Distribution and Control Busines s U n i t
E l ectrical Com ponents Division
Pittsburgh, Pennsylva n ia , U . S .A . 1 5220
J u ly 1 991
.c
om
Cl
Westinghouse Electric Corporation
Distribution a n d Control Busi n ess U n it
Electrical Components Division
Pittsburgh, Pen nsylva n i a , U .S.A. 1 5220
July 1 99 1
Su persedes Technical Data 29-220,
pages 45-46, dated Apri l 1 99 1
M a i led to : E, D, C/29-200A
Curve Tolerance Applies
Over Temperature Range of
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Navy Type AQB-L400QF
Circuit Breaker
-'--'--'-H-'-'f---i-- 1
Rating Plug: 3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
�� ���:3]!tt=fiE��� �
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ar
- 20 Deg. C. to + 70 Deg. C.
tM
- 3000 ji
Rating Plug: 2500
Page 45
ua
ls
•
Navy Type AQB-L400QF
Circuit Breaker
29-220
an
•
Types AOB-L4000F, AQB-L400QM ;
1 50,000 Am peres I .C. a n d
AQB-LL400QS; 1 00,000 Am peres I .C.
250-400 Amperes; 500 Volts 60 Hz Ac
Tech n ical Data
I
�-=: �: �= 10
�� - ____:_ -:--=�_
w±:1=�==��:t;:H=ttr=r==J=-1.=:�:---=-- � -:--�
�� - ·
Short Delay
H1gh Sett�ng
-
- �
-_
-�
-
0
ca
{1500Al
P.ck Up --H . - -� - ­
I·'
---
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lec
tri
-+--+-f-+-'+-t--'-+-'-:
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Time-Current Curves for AOB-L4000F Circuit Breaker with 250 Ampere
Rating Plug
Time-Current Curves for AOB-L4000F Circuit Breaker with 300 Ampere
Rating Plug
.c
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Technical Data
29-220
Page 46
•
Navy Type AOB-L4000F
Circuit Breaker
Rating Plug: 3500
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 10 Deg. C.
iOOO --•
Navy Type AOB-L4000F
Circuit Breaker
'
-�· I
-: l�OIJ
::;
t ;_
--::=-��
_
---_:______;:_____._-----:--;--:- t .!.___
� - --t · • · �- t ----+---+ · •+-t-
100
--- t � 50
:§
---
·
---+--+----1
lec
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_.____.__. _= : �� � � - �
- �-- ·-�--· • • · 30
t �---· . . L 2o
Curve Tolerance Applies
Over Temperature Range of
- 2 0 Deg C to + 70 0eg C
an
j'-" 500
ua
ls
•
Time-Current Curves for AQB-L400QF Circuit Breaker with 400 Ampere
Rating Plug
.E
Time-Current Curves for AOB-L400QF Circuit Breaker with 350 Ampere
Rating Plug
ww
w
Westi n g h ouse E l ectric Corporation
Distri bution and Control Busines s U n it
E lectrical Components Division
Pittsburgh, Pen n sylva nia, U . S .A. 1 5220
July 1 991
J u l y 1 99 1
S u persedes Tec h n i ca l Data 29-220,
pages 47-48, dated April 1 99 1
M a i led to : E , D, C/29-200A
•
29-220
Page 47
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
lP
ar
tM
an
Navy Type AQB-L400QM
Circuit Breaker
Tec h n ical Data
ua
ls
•
Types AQB-L400QF, AOB-L400QM ;
1 50,000 Am peres I.C. a n d
AQB-LL400QS; 1 00,000 Am peres I.C.
250-400 A m peres; 500 Volts 60 Hz Ac
.c
om
Westinghouse Electric Corporation
Distri bution a n d Control Busi ness U n it
E l ectrical Compon ents Division
Pittsburgh, Pennsylvania, U . S.A. 1 5220
Navy Type AQB-L400QM
Circuit Breaker
Rating Plug: 3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
-
<
-+-- ---+--• · · -· - §
.E
lec
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ca
---+----+ . , ___, 3
'
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Time-Current Curves for AQB-L4000M Circuit Breaker with 250 Ampere
Rating Plug
Time-Current Curves for AOB-L4000M Circuit Breaker with 300 Ampere
Rating Plug
.c
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Technical Data
29-220
Page 48
•
Navy Type AOB-L4000M
Circuit Breaker
Navy Type AOB-L4000M
Circuit Breaker
ua
ls
•
Rating Plug: 4000
an
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
d
-i
�
� � '>0 �
- ; ' · � aa
- --�
- -�
- ��
-� �
:-�
---�
- ��-:__· ·�----1----+-+->-
-
- - . -�
_
:
:=:tr =-
--+ -- I· 00
+- ----+
-�-.--+--- � -
�
§
tri
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-
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�
+
-
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-+f-. iOO
++��--+---- : t: i �1 � !
;
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I
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II
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Time-Current Curves for AOB-L4000M Circuit Breaker with 400 Ampere
Rating Plug
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Time-Current Curves for AOB-L4000M Circuit Breaker with 350 Ampere
Rating Plug
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Westi ngh ouse E l ectric Corporation
Distribution a n d Control Bu si ness U n it
Electrical Compone nts Division
Pittsburg h , Pen n sylva n i a , U . S.A. 1 5220
July 1 991
J u ly 1 99 1
S u persedes Technical Data 29-220,
pages 49-50, dated April 1 99 1
Mailed to : E, D, C/29-200A
•
" --+-+
Page 49
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
Navy Type AQB-ll400QS
Circuit Breaker
Rating Plug: 3000
Curve Tolerance Applies
Over Temperature Range of
- 20 Deg. C. to + 70 Deg. C.
ar
JOO � -
tM
Rating Plug: 2500
Curve Tolerance Applies
Over Temperature Range of
- 20 De g. C. to + 70 Deg. C.
29-220
an
Navy Type AQB-ll400QS
Circuit Breaker
Techn ical Data
ua
ls
•
Types AOB-L400, AQB-LL400
500 Volts Ac
400 Amperes M a x i m u m , 1 50,000,
1 00,000 Am peres I . C . , Respectively
.c
om
Westinghouse Electric Corporation
Distri bution a n d Control Busi ness U n it
E l ectrical Compo nents Division
Pitts burgh, Pennsylva nia, U . S . A. 1 5220
z - ------
10• •
�-
�-
. 1 -+--. 1
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Time-Current Curves for AQB-LL400QS Circuit Breaker with 250 Ampere
Rating Plug
Time-Current Curves for AQB-LL400QS Circuit Breaker with 300 Ampere
Rating Plug
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Tech n i ca l Data
29-220
Page 50
•
Navy Type AQB-LL400QS
Circuit Breaker
��
----;-----:- --+
____
_::::___
. •
_J_ '00
,;::
� -----+
---+-- ---; -;-----+-'
· +---i-----1 - .z
•
.j___J._..._. 0 0
�
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Circuit Breaker
an
Curve Tolerance Applies
Over Temperature Range of
-20 Deg. C. to + 70 Deg. C.
30UO
t · /000
Navy Type AQB-LL400QS
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•
8 § §§§§§
� " :il >":i:5l§
Time-Current Curves for AOB-LL4000S Circuit Breaker with 400 Ampere
Rating Plug
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Time-Current Curves for AOB-LL4000S Circuit Breaker with 350 Ampere
Rating Plug
ww
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Westing house E l ectric Corporation
Distribution and Control Busi ness U n i t
Electrical Com ponents Division
Pittsburgh, Pen n sylva n i a , U .S.A. 1 5220
July 1 99 1
J u ly 1 99 1
S u persedes Tech nical Data 29-220,
pages 51 -52, dated April 1 99 1
M a i led to : E , D, C/29-200A
�·'• --���
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®
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TFn � � �
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---- 4'116
�
Automatic
Tripped
91 7132
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30� 1 o
1 9°rl.
' "Y�i
1
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31/16
�
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55132
21!64
Jl
11/s t
i
Load
v
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� 11 1° 50'
I
Reset
Max
37/s
Radius
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4
, . �,%
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627132 513/1 6
1 /s
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103/1 6
'�
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-f- -
I
---
Line
-
Pis
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
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18'11 6 16
Page 51
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1'132
29-220
ua
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- 2'14 -
1
Technical Data
Types AQB-L400, AQB-LL400
500 Volts Ac
400 Amperes M a x i m u m , 1 50,000,
1 00,000 Am peres I . C . , Respectively
Outline Dimension AQB-L400, AQB-LL400
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Cl
Westinghouse Electric Corporation
Distribution and Control Busi ness U n it
E l ectrical Components Division
Pitts burgh, Pen nsylva n i a , U . S . A. 1 5220
!
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J 1t.
i
Front Surface
of Mounting
Panel
99/16
143
I
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II
Center Line of
Circuit Breaker
Handle
i.
...j ] r--- 1 %2
;F],
�
-18--
?
J
Dimensions in Inches
*Conductor Height for Front
Connection
JTI1
1.IlJ
53/1 6
1t
,·
29-220
Page 52
Outline AQB-L400, AQB-LL400 with Motor Operator
@
10 13116
16
0
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-I-0
27132
-
0
-i---f---,_____
513116
-1
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@
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Load E nd
511 6·18 Mounting
Hardware
Dimensions in Inches
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Reset Max.
14%
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Auto matic
Trip ped
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6
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1 71311 6
Line End
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Tech n i c a l Data
Westi n g h ouse E l ectric Corporation
Distribution and Control Business U n it
E l ectrical Compo nents Division
Pittsburgh, Pen nsylva nia, U . S .A. 1 5220
July 1 991
.c
om
Tech n ical Data
Westinghouse Electric Corporation
Distribution a nd Control B u s i n ess U n it
Electrical Components Division
Pittsburgh, Pen nsylv a n i a , U . S . A. 1 5220
Types AOB -A1 601 , N O B -A1 601
500-1 600 Amp eres; 500 Volts, 60 Hz Ac,
75,000 Amperes I . C .
Page 55
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
ua
ls
J u l y 1 99 1
S u p e rsedes Tech n i c a l Data 29-220,
pages 55-56, dated April 1 99 1
M a i led to : E, D, C/29-200A
29-220
A Q B - A 1 601 and N Q B -A 1 601
N avy B reakers
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Note: AQB-A1 601 are sold for replace­
ment only. They are no longer on the
Navy Qualified Products List.
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List Prices See Price List 29-020
3 Pole, 500 Volts, 60 Cycles A-c
Breaker Only, consists o f :
Frame (I ncludes Stabs)
Type Continuous I nstantaneous
Trip Setting
Ampere
A-c Amperes
Rating
Low
High
Trip u n its for these breakers have a n adjust­
able instantaneous trip and are listed with
and without delayed i nsta ntaneous trip for
system coord i nation.
Trip U n it
National
Stock
N u m ber
Style
N umber
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
3720523G01
3720523G03
3720523G07
3720524G03
3720524G05
3720524G07
3720524G09
3720524G 1 0
lec
Style
N u m ber
National
Stock
Number
Without Delayed Instantaneous Trip
600X
600XM
aoox
1 000X
1 200X
1 400X
1 600X
1 600
2000
4000
2000
2000
2000
4000
4000
6000
1 2000
6ooo
6000
6000
1 2000
1 2000
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
3720522G04
.E
AQB
AQB
AQB
AQB
AQB
AQB
AQB
N QB
2000
2000
2000
2000
4000
6000
6000
6000
6000
1 2000
1
3720522G02
3720522G02
3720522G02
3720522G02
3720522G02
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
1
374021 1 G01
374021 1 G07
37402 1 2G03
374021 2G05
3740212G09
5925-00-406-61 3 1
5925-00-1 02-6086
5925-00-727.757 4
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With Delayed Instantaneous Trip (XT2 - Max. Time Delay .0708 - .0750 Sec.)
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AQB 500XT2
AQB 800XT2
AQB 1 200XT2
AQB 1 600XT2
2000
2000
2000
4000
6000
6000
6000
1 2000
3720522G02
3720522G02
3720522G02
3720522G02
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
5925-0 1 - 1 05-4401
374022 1 G01
374022 1 G07
3740222G05
3740222G09
N O B -A1 601 Breakers have a continuous
of 1 600 amperes. They are used o n ly
as disconn ects since they do not have a n
automatic t r i p device.
rating
N ote: B reakers with ratings other than those
listed above are considered as special and
fu l l descriptive data must be provided.
With Delayed Instantaneous Trip (XT1 - M i n . Time Delay .041 7 - .0458 Sec.)
AQB 500XT1
AQB 800XT1
AQB 1 000XT1
AQB 1 200XT1
AQB 1 600XT1
AOB -A1 601 circuit breakers are designed
for insta llation i n switchboards for protec­
tion of generators and feeder a nd bra nch
circuits.
A complete breaker consists of a breaker plus
mounting base and is ava ilable with n u mer­
ous attachments such as electrical operator,
shunt trip, u ndervoltage release a nd auxil iary
switches to perform varied a uxil iary func­
tions.
Complete Breaker
Breaker Only
500-1 600 Amperes, 500 Volts A - c, 60
Cycles Only, 3 - Pole, 50°C A m b i e n t
I nterrupting R ati n g : 75,000 A m ps. A - c
(Without Del ayed I nsta ntaneous )
50,000 A m p s . A - c (With D elayed
I n stantaneous )
S pecificat i o n : M I L- C - 1 7361
C l ass : H i S h ock M I L- S - 901
V i b ration: M I L- S T D - 1 67
M aterial a n d Work mansh i p: M I L- E -91 7
5925-00-727-7555
5925-00-1 03-4248
400 cycle breakers are not ava i l a b l e .
Page 56
Mounting BaseCD
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Technical Data
29-220
N et Wei g hts
Optional AdditionsCD
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ls
Shunt Trip@ : M o u nts in right pole only.
Has momentary rating only; coil leads m u st
be wi red in series with 1 A contact of aux­
i l ia r y switch.
Description
Undervoltage Release@ : M o u nts in right
pole only.
Electrical Operator, 1 1 5 Volt
Electrical Operator, 450 Volt
S h u nt Trip
U ndervoltage Release
Auxil iary Switch
Cable Con nector
an
Auxiliary Switch: M o u nts i n left po l e only.
4 contacts, a ny co m b i nation of A's a nd B's,
(suppl ied as 2A a nd 2B u n less specified)
8 contacts, a ny combi nation of A's and B's,
(suppl ied a s 4A and 4B u n l es s s pecifi ed)
Breaker Only
AOB
NOB
Breaker Frame (AOB and N O B )
Tri p U n it
AOB
NOB
M ounting Base Only
Cable Con nector: M o u nts to bus connector
fo r cable co n nection. Each lug accepts fo u r
cables, 600 M C M max. 1 l u g req u i red per bus
connector.
Sty l e N u m be r : 505C706G 03
1 51
1 48
1 28
23
20
75
27
35
%
1�
1%
3
O rd e r i n g I nformation
When ordering Westing house N avy circuit
breakers consult the check list below to
make sure you have provided correct infor­
mation. You should specify:
ar
For switchboard mounting. I n cludes back
connectors for switchboard bus and male
stabs to engage breaker. Matching stabs are
supplied with breaker frame.
tM
Automatic Reset Switch
For use with m otor operator w h e n an auto­
matic reset function is req u i red. Factory i n­
stal led o n ly.
Weight,
Lbs.
Style N u m ber: 373D307G02
1 . Q u a ntity, West i n g h o u se style n u m ­
b e r a n d N a t i o n a l stock n u m be r of:
Fungus, Moisture Resistant Treatment:
( a ) B reaker frame and trip u n it.
(JAN-C- 1 7 3 or M I L-V- 1 73) : If specifi ed, con­
(b) M ounting base.
tact Westi ng h ouse. External parts are coated;
(c) Spare breakers or trip u n its. ( Usua lly
trip u n its a re not treated.
one required for each ten u n its or
Drawings
fraction th ereof of each current
rating.)
M a ste r p l a n : 900J442
(d) I nstruction books.
S h eet 1 of 4: Breaker O n l y and W i r i n g d i a­
g ra m s
2. S h i pment
S h eet 2 of 4 : T r i p U n it, Cu rves and Attach­
Specify transportation means, method of
ments
packag i ng and preservation and req u i red
S h eet 3 of 4 : M o u nt i ng Base and Cable
shippi n g d ate.
Co n n ectors
S h eet 4 of 4 : Motor Operator
3 . D ra w i n g s
Specify quantity of outl i n e or master plan
Individual Reproductions: When req u i red,
drawi ngs required.
reprod u ctions of sheets 1 thru 4 of m a ster
plan 900J442 can be ordered as fol l ows:
4. Inspection
Type Reproduction
I n d i cate whether G overn ment Sou rce
Vellum
inspection is req u i red at factory prior to
Prints (Paper)
s h i pment.
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Electrical OperatorCD
Technical Manual: NAVS H I PS No. 0962-0 1 45000. This booklet per M I L-M- 1 507 1 . When
req u i red, o rder BVR-TM-576.
M o u nts to front of breaker fo r remote o pera­
tion. 450 volt Ac rating uti l izes a tra nsfo rmer
Dimensions: Pages 57, 58, 59
i n conjunction with a 1 20 volt m otor. If auto­
matic reset is desired, o rder the circuit
Characteristic Curves : Pages 60, 61
breaker with optional Automatic Reset Switch
(See Opti o n a l Additions)
CD Can be field mounted.
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Rating
V A-c
V A-c
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1 20
450
Style
Nu mber
1 371 D38G06
1 371 D38G08
®
National
Stock
Number
None
Assigned
Westi n g h o u se E l ectric Corporation
D i st ri b uti on and C o nt rol B u s i ness U n it
E l ectrical Compon ents Division
Pittsburgh, Pennsylva n i a , U . S . A. 1 5220
Breaker can be supplied with either shunt trip or
undervoltage release, but not both.
July 1 991
Tech n ic a l Data
29-220
J u ly 1 99 1
Su persedes Technica l Data 29-220,
pages 57-58, dated Apri l 1 99 1
M a i led to : E, D, C/29-200A
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Westinghouse Electric Corporation
Distribution a n d Control Busi ness U n it
E l ectrical Components Division
Pitts b u rgh, Pen nsylvania, U . S.A. 1 5220
Page 57
Types AOB-A1 6 0 1 , N O B - A 1 6 0 1
500-1 600 Amperes; 500 Volts, 6 0 Hz. Ac.
75,000 Amperes I . C .
ua
ls
AB DE-ION®
Circuit Breakers for
Naval Shipboard Use
A O B a n d N O B C i rcuit B reaker Frame O u t l i ne D i mensions
NOB-Same except fo r t r i p u n it n a m e p l ate.
Front Panel Cutout
an
It of Breaker
Top End of Breoker
ar
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z !!. /
3�
T
7�
32
1-+--___,f- Removoble Handle
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Extension Supplied
w1th Breaker
Swttchboord Front Panel
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Attachment Leads ore brought out through
0ne or more of these Opemngs as Requtred
in thts Side for Shunt Trip or Under voltage
Release and Opposite Stde for Auxiliary
Switches, Leads Extend Mtmmum of
18 Inches from Breaker
W i r i n g D i a g rams
NOB
r--rn 1 r) r) r : ���r\ r
Line
Line
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_
_
_
_
_
��=
�u
�f\
\ cW
·: :·- - : , ffi
- -- - - .
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t
L- - - -- - - - - -
Lood
I
- -'
18 1nches
Long
I
'- -
Reproduced From Drawing
-
-
-
Load
900J442
-
-
-
I
- '
Sheet
1
of 4
EJ
,
Minimum
Furntshed wtth a l l
Breakers for Manual
Closmg and Opening
When u ndervoltage
release and auxiliary
switches are provided
.E
AOB
9161 ---+�E,r-----9
: Undervoltoge
; Release 2 Leads
•• .
-.
:
; _ _ _ _ _ _ _ _ _ _ _ _ _ _: 18 Inches Long
When shunt trip and
auxiliary switch
are provided
- - ���:·:���
� - r r) r) -
: �;: . ��� � llil"t:"'
J
Sw1tches
=
\
,
Long
'
'
'
�:
e
18 ln h s
Long
Note · The auxiliary switch must be used with each shunt trip . Con nect one
side of shunt trip i n series with "A" contact ( c l osed when breaker is
closed) of auxil iary switch when connecting to power supply.
.c
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Technical Data
29-220
Page 58
M ou n t i n g Base O ut l i n e D i mensions
c . c.
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Top View
Jn. t----------------�
1 t==;T-'���=-=-=-=-=-=rr
Sw1tchboord
an
Bock Panel
0 0 0
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�------ 12� --------�
Switc h board
Mountmg Angle
I
al l Connectors may
be Rotated
90°
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ar
Side View
� -16 To p 4 Holes
tri
( B reaker Mount 1 n g )
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Front View
C utout
Front Panel Cutout
For Switchboard Back Panel
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<t_ o f B r e o ker
M o u nt i n g Base
With cable connectors style 505C706G03
lug capacity-tou r 600 MCM cables per lug
Reproduced From Drawing
Outl1ne o f
Mount1n g
Bose
900J442
Sheet 3 of 4
July 1 99 1