Rockwell Automation 1502 400 Amp Medium Voltage Contactor (Series D) - Manual (Page 37)

Maintenance 4-9
1502-UM050D-EN-P – June 2013
Auxiliary Assembly
Retaining Bolt
Closing Coil
Hold-in Coil
Retaining Ring
Auxiliary Assembly Auxiliary Assembly
Retaining Bolt
Closing Coil
Hold-in Coil
Retaining Ring
Auxiliary Assembly
Figure 4.11 – Coil Removal
4. Disconnect the coil leads (take note of their location). Connect the leads
of the new coil, making sure that all metal-oxide varistors (MOVs) and/or
diodes are secure. Refer to the appropriate wiring diagram in this manual
if further control wiring details are required.
5. Slide the new coil into position and install the retaining ring on the core.
Install the auxiliary assembly leaving the retaining bolt loose for adjustment
later. See the Auxiliary Contact Set-up Procedure (page 4-10) for
determining the position of the auxiliary assembly.
6. Install the armature plate, auxiliary actuator and stop bracket. Position the
stop bracket by resting it lightly against the armature plate.