Eaton 9355 - 4.3.4 UPS with a Version 2 Wall-Mounted Bypass Switch

Eaton 9355 UPS (10/15 kVA) User’s Guide 164201594—Rev H0 47
Figure 32. Version 1 Bypass AC Input Wiring
Line 1
Line 2
Line 3
19. Verify the bypass input.
20. Reinstall the internal cover.
21. Reinstall the bypass cabinet front cover.
22. Proceed to 4.4 Stabilizing the Cabinet to complete the UPS installation.
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This chapter describes installing the wall-mounted bypass switch with the UPS. The wall-mounted bypass
switch is a Make-Before-Break (MBB) maintenance bypass switch.
NOTE The input isolation transformer cannot be used with the wall-mounted bypass switch.
The Eaton 9355 UPS has the following power connections:
• 3–phase (L1, L2, and L3), neutral, and ground connection for rectifier/bypass input
• 3–phase (L1, L2, and L3), neutral, and ground connection for load output
The nominal input/output voltages are:
• 120/208 or 127/220 Vac
Output overcurrent protection and disconnect switch must be provided by others.
Figure 57 through Figure 59 show the oneline diagrams.
UPS System Installation