Eaton Powerware 9355 - Using the UPS Maintenance Bypass Switch

UPS MAINTENANCE
Eaton 9355 UPS (10/15 kVA) User's Guide S 164201594 Rev D www.eaton.com/powerquality
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Using the UPS Maintenance Bypass Switch
The UPS maintenance bypass switch is located on the back of the UPS
(see Figure 59).
The maintenance bypass switch is used to bypass the UPS during
maintenance or servicing. The switch provides a wrap-around bypass
without shutting down the load. The SERVICE position on the switch
allows a service engineer to apply power to the UPS input and verify its
operation while the load is powered through bypass.
Figure 59. Maintenance Bypass Switch