Eaton Powerware 9355 - Options Cabinet with MBS Wiring

ELECTRICAL INSTALLATION
EATON Powerware
®
9355 UPS (20/30 kVA) Installation and Operation Manual S 164201626 Rev B www.powerware.com
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Options Cabinet with MBS Wiring
To hardwire an Options Cabinet with an MBS (with or without an input isolation
transformer):
1. Remove the Options Cabinet conduit landing box from the rear panel and retain
(see Figure 17).
2. Punch two holes in the conduit landing box for the input and output conduit using
a Greenlee punch or similar device.
3. Route the wiring from the back of the Options Cabinet, through the wiring tray,
to the front of the Options Cabinet.
4. Hardwire the input, output, and ground terminations for the Options Cabinet. See
Table 1 on page 34 for wiring specifications.
For a detailed view of the Options Cabinet terminal block, see Figure 18.
5. Route the factory-installed wiring through the knockouts and hardwire to the UPS
terminal block.
For a detailed view of the UPS terminal block, see Figure 21 on page 35.
6. Route the maintenance bypass auxiliary wiring through the knockouts to the UPS
and wire to the contacts below the MBS (see Figure 18 on page 29).
7. Reinstall the Options Cabinet wiring access cover.
8. Reinstall the Options Cabinet conduit landing box in the reversed position (see
Figure 17).
9. Replace the Options Cabinet front door (see page 10).
10. Reinstall the UPS wiring access cover.
11. Replace the UPS front door (see page 10).
Figure 17. Reversing the Options Cabinet Conduit Landing Box