UNIVERSITY OF CENTRAL FLORIDA FACILITIES OPERATIONS STANDARD OPERATING PROCEDURE Subject: Contactor Replacement FO-SOP-M05 Rev. 1 Page: 1 of 3 Last Modified: 5/04/2015 Approved by: Duane Siemen 4/14/2015 PROCEDURE: Contactor Replacement Guide INTENDED AUDIENCE: FO Maintenance Personnel PURPOSE: Provide guidance for the selection and replacement of defective contactors with an equivalent Allen Bradley contactor. 1) Motor Contactor Summary When any brand of motor contactor fails, it can be replaced with an Allen Bradley contactor that has the correct Horsepower, operational current and coil voltage rating. This is the preferred avenue to follow when a contactor fails, especially in an emergency situation and when the failed component is obsolete. A new overload module may also need to be installed in conjunction with the contactor and must be selected and adjusted based on the full load amp rating of the motor. Allen Bradley 100 series contactors have been added to stock for the purpose of becoming the preferred contactor replacement part. a) Important items to consider when selecting a replacement contactor: Horsepower of the motor. Rated Operational Current of the contactor. Coil voltage (120V or 24V). Full load amperage of the motor. The correct Overload relay must be installed. If the defective contactor is not DIN rail mounted, a short piece of 35mm wide DIN rail (Allen Bradley #199DR1) will need to be installed for mounting the new contactor. b) How to read an Allen Bradley 100 series part number: Example: 100-C43D10 100-C = The Allen Bradley catalog number 43 = Rated Operational Current (in this case 43 amps) D = coil voltage (D = 120v and KJ = 24v) 10 = Auxiliary contacts, 1 N.O. and 0 N.C. c) Overload Relay selection information: The overload relay module can only be used with the associated contactor as listed in the table below. These are solid state overloads and must be selected so that the full load amperage value on the motor nameplate falls within the value range of the relay. d) Contactor selection chart: Check the motor nameplate for the horsepower and full load amps. Verify the coil voltage of the defective contactor. Use the chart below and UNIVERSITY OF CENTRAL FLORIDA FACILITIES OPERATIONS STANDARD OPERATING PROCEDURE FO-SOP-M05 Page: 2 of 3 Last Modified: 4/14/2015 Approved by: Duane Siemen 4/14/2015 Subject: Contactor Replacement match the motor information and coil voltage to select the correct Allen Bradley contactor for installation. When the contactor is selected, follow the row to the last two columns on the right to select the correct overload relay. Remember to set the dial to the amperage based on the motor nameplate amps. Rated Operational Current Motor HP Coil Volts 100-C23D10 23A 1 - 15 120V 1 0 100-C23KJ10 23A 1 - 15 24V 1 0 100-C43D10 43A 16 - 30 120V 1 0 100-C43KJ10 100-C85D10 43A 85A 16 - 30 31 - 60 24V 120V 1 1 0 0 100-C85KJ10 100-C97D10 100-C97KJ10 85A 97A 97A 31 - 60 61 - 75 61 - 75 24V 120V 24V 1 1 1 0 0 0 Contactor Part # Contacts N.O. N.C. OL Part # 193-EECB 193-EEEB 193-EECB Current Range 1A - 5A 5.4A - 27A 1A - 5A 193-EEEB 5.4A - 27A 193-EEFD 9A - 45A 193-EEGE 18A - 90A 193-EEVE 60A - 120A 2) Definite Purpose Contactor Summary Definite purpose contactors are ideal for heating, air conditioning, refrigeration, data processing and food service equipment. Compact 1 and 2 pole contactors are available along with full size 2, 3, and 4 pole devices. When any brand of contactor fails, it can be replaced with an Allen Bradley contactor that has the correct specifications as the one being removed. This is the preferred avenue to follow in an emergency situation and when the failed component is obsolete. There are new Allen Bradley Contactors currently in stock that should be used as replacements when needed. a) How to read an Allen Bradley 400 series part number: Example: 400-DP25NJ1-B 400 = Allen Bradley catalog number DP = Type, (Definite Purpose Contactor) 25 = Max continuous amp rating N = No enclosure UNIVERSITY OF CENTRAL FLORIDA FACILITIES OPERATIONS STANDARD OPERATING PROCEDURE Page: 3 of 3 Last Modified: 4/14/2015 Approved by: Duane Siemen 4/14/2015 Subject: Contactor Replacement FO-SOP-M05 J = Nominal coil voltage, (D is 120V and J is 24V) 1 = number of poles B = Modifications, (Box lug in 2nd position) b) Definite Purpose Contactor Selection Table: The table below shows 4 definite purpose contactors that have been added to stock. The first column shows the Allen Bradley part number and the last column is the part number of the contactor that it can be used in place of. Compare the properties of the defective contactor with those in the table to select the correct new contactor. Note: the number in the last column is NOT the only contactor that the Allen Bradley can replace. Rated Operational Current Coil Voltage Line Voltage 400-DP25NJ1-B 25A 24V 600Vmax 400-DP25ND3 25A 120V 600Vmax # of Poles 1 / with shunt 3 400-DP40NJ3 40A 24V 600Vmax 3 Allen Bradley Contactor Part # 100 Contactor Auxiliary Contact Block Contacts Allen Bradley P/N N.O. N.C. 100-FA20 2 0 100-FA11 1 1 100-FA02 0 2 >>>END OF PROCEDURE Replaces Honeywell DP1025A5005/U Eaton C25DND325A Eaton C25DNF340T and C25DNF240T
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