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Rockwell Automation Publication 1512A-UM101B-EN-P - December 2021
Chapter 3 Installation – Arc-Resistant
Figure 21 - Joining Sections
Access to the Power Bus
Rear Access
1. Remove the hardware securing the center rear bus access cover
(
2. Remove the center rear bus access cover.
3. Once the center rear bus cover is removed, you will see the three busbars
(
).
Power Bus
cutout holes
must align
Silicone is applied around
power bus cutout area to
prevent gas leakage
between joined cabinets
ATTENTION:
This procedure requires contact with medium voltage
components. To avoid shock hazards, lock out incoming power
before working on the equipment (See
). 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.
ATTENTION:
The rear cover plates are made from 12 gauge
metal and are mounted in board of the main structure. The
covers will drop inside if care is not taken as you remove the
mounting bolts.
