Rockwell Automation 1512A MV Controllers, 400A One-High Cabinet, Standard and Arc-Resistant Enclosure - Manual (Page 55)

Rockwell Automation Publication 1512A-UM100F-EN-P - May 2013 47
Maintenance Chapter 5
7. Apply a rapid shove to the bottom portion of the fuse barrel to force the
fuse into the clip.
8. Apply a rapid shove to the top portion of the fuse barrel to force the fuse
into the clip.
9. Grip center of fuse barrel with both hands and apply slight back and
forward force to ensure fuse has been properly seated in the fuse clips.
10. Again check and verify that the flares at the top and bottom of the fuse are
not in the contact area of the fuse clip.
11. If interphase barriers were previously removed ensure they are properly
reinstalled.
Figure 46 - Clip-on Style Medium Voltage Power Fuse
Contactor Maintenance Refer to Publication 1502-UM050_-EN-P (Series D)
or Publication
1502-UM052_-EN-P
(Series E) for contactor maintenance instructions.
Removing the Contactor
1. Complete the Power Lockout Procedure (refer to Power Lock-out
Procedure on page 41 ).
2. Disconnect the control wiring harness from the wire plug at the lower left
side of the contactor (see Figure 47 ).
3. Remove the control power transformer primary fuses from the top of the
contactor.
4. Disconnect the control power transformer primary leads from the fuse
terminals at the top of the contactor.
‡ ‡
‡
Flares
Blown Fuse Indicator
(shown in blown state)
ATTENTION: To avoid shock hazards, lock out incoming power (refer to Power
Lock-out Procedure on page 41 ) before working on the equipment. Verify with a
hot stick or appropriate voltage measuring device that all circuits are voltage
free. Failure to do so may result in severe burns, injury or death.