Rockwell Automation 1502 400 Amp Medium Voltage Contactor (Series D) - Manual (Page 36)

4-8 Maintenance
1502-UM050D-EN-P – June 2013
Coil Replacement Procedure
To avoid shock hazards, lock out incoming power and
disconnect the control plug from the contactor before
working on the unit. Verify with a hot stick or meter that all
circuits are voltage free. Failure to do so may result in severe
burns, injury or death.
Refer to Chapter 6 for the part number(s) required for this procedure.
1. Remove the auxiliary actuator, front stop bracket and armature plate as
shown in Figure 4.10. Note: do not remove the bolts which secure the stop
bracket, simply loosen them and slide the bracket out (on older contactors,
the bolts must be removed from the underside of the contactor housing in
order to remove the stop bracket).
Auxiliary Actuator
Stop Bracket Bolts
Armature Stop Bracket
Armature Plate
Auxiliary Actuator
Stop Bracket Bolts
Armature Stop Bracket
Armature Plate
Figure 4.10 – Access to Coils
2. Remove the retaining ring from the core of the coil you wish to replace as
shown in Figure 4.11.
3. Loosen the auxiliary assembly retaining bolt and slide the assembly and
the coil forward and out of the contactor as shown in Figure 4.11.
A T T E N T I O N A T T E N T I O N