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UPS 225 - 275 kVA
User’s and Installation Guide
1027212
Revision C
46
NOTE If installing, as part of the UPS system, a maintenance bypass without a rectifier input breaker, a minimum of two
separate feeds with upstream feeder breakers, or one feed with two upstream feeder breakers, must be provided: one
for the UPS and one for the maintenance bypass input. DO NOT use one feed or a single-feeder breaker to supply both
the UPS and the maintenance bypass.
Figure 4-6. Typical maintenance bypass panel