Eaton 9355 Installation And Operation Manual

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Electrical InstallationEaton 9355 UPS (20/30kVA) Installation and Operation Manual 164201626—Rev F www.eaton.com/powerquality 29Options Cabinet with MBS WiringTo hardwire an Options Cabinet with an MBS (with or without an input isolation transformer or input and outputtransformers):1. Remove the Options Cabinet conduit landing box from the rear panel and retain (see Figure 19).2. Punch two holes in the conduit landing box for the input and output conduit using a Greenlee punch orsimilar device.3. Route the wiring from the back of the Options Cabinet, through the wiring tray, to the front of the OptionsCabinet.4. Hardwire the input, output, and ground terminations for the Options Cabinet. See Table 1 on page 35 forwiring specifications.For a detailed view of the Options Cabinet terminal block, see Figure 20.5. Route the factory-installed wiring and ground bonding wire through the knockouts and hardwire to theUPS terminal and ground blocks.For a detailed view of the UPS terminal block, see Figure 23 on page 36.6. Route the maintenance bypass auxiliary wiring through the knockouts to the UPS and wire to the contactsbelow the MBS (see Figure 20).7. Reinstall the Options Cabinet wiring access cover.8. Reinstall the Options Cabinet conduit landing box in the reversed position (see Figure 19).9. Replace the Options Cabinet front door (see page 10).10. Reinstall the UPS connections insulator.11. Reinstall the UPS wiring access cover.12. Replace the UPS front door (see page 10).Figure 19. Reversing the Options Cabinet Conduit Landing Box