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Figure 52 – Rockwell Automation 1512B MV Controllers, 200/400A Two-High Cabinet, Standard and Arc-Resistant Enclosure User Manual

Page 61

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Rockwell Automation Publication 1500-UM055G-EN-P - May 2013

53

Maintenance

Chapter 5

4. Disconnect the control power transformer primary leads from the fuse

terminals at the top of the contactor.

5. Use a 9/16-in. socket wrench to disconnect the power cables and bus bars

from the rear of the contactor.

6. Remove the nylon contactor bushing retaining screw from the contactor

interlock lever.

7. Slide the contactor interlock rod and the nylon contactor bushing out of

the groove in the contactor interlock lever (see

Figure 53

).

Figure 52 - Removing the Contactor (Front view)

Figure 53 - Removing the Contactor (Right-side view)

8. Remove the two contactor mounting bolts at the front of the contactor.

Contactor
Operating Level

Contactor
Interlock Rod

Contactor Interlock Rod

Nylon Contactor

Bushing

Retaining Screw

Nylon

Contactor

Bushing

Nyloc Nut

Contactor Operating Lever

Contactor
Remaining Tabs