User Guide

UPS MAINTENANCE
EATON Powerware
®
9355 UPS (10/15 kVA) User’s Guide S 164201594 Rev C www.powerware.com
81
Using the UPS Maintenance Bypass Switch
The UPS maintenance bypass switch is located on the back of the UPS
(see Figure 47).
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 47. Maintenance Bypass Switch