Rockwell Automation Publication 1500-UM055I-EN-P - December 2021
37
Chapter 2 Installation – Arc-Resistant Enclosure
4. To access the left side of the power bus, locate the two bus access covers
at the rear, left side of the power cell. Remove the four 1/4-20 self-tapping
screws (12 lb•ft [15N•m]) from each cover and remove the covers (see
).
Figure 31 - Removing Bus Access Covers
5. If access to the right side of the power bus is required, remove the
vacuum contactor from the upper power cell (see
).
6. Remove the power fuses from the isolation switch.
7. Remove the interphase barriers from the trailer fuse block by raising
them vertically up and out of the mounting slots (see
8. Use a 9/16-in. socket to remove the contactor bus bars from the isolation
switch trainer fuse block.
Remove Bus Access Cover
Содержание 1512B
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Страница 74: ...74 Rockwell Automation Publication 1500 UM055I EN P December 2021 Chapter 4 Maintenance Notes...
Страница 76: ...76 Rockwell Automation Publication 1500 UM055I EN P December 2021 Chapter 5 Spare Parts Notes...
Страница 106: ...106 Rockwell Automation Publication 1500 UM055I EN P December 2021 Appendix E History of Changes Notes...