UPS MAINTENANCE
EATON Powerware
®
9355 UPS (20/30 kVA) Installation and Operation Manual S 164201626 Rev B www.powerware.com
79
Using the UPS Maintenance Bypass Switch
The UPS maintenance bypass switch is located behind the UPS front door (see
Figure 51).
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 51. Maintenance Bypass Switch
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