Eaton UPS 225275 kVA Powerware 9395 User's Installation Manual page 46

NOTE If the load requires a neutral, a bypass source neutral must be provided. If the load does not require a neutral and
there is no neutral conductor connected at the bypass input, a neutral to ground bonding jumper must be installed. DO
NOT install both a source neutral and a bonding jumper.
Figure 4-5. Powerware 9395 450–550 kVA UPS system, 400 V input and 400 V output dual-feed
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UPS 450 - 550 kVA (2x225 - 2x275 kVA)
Revision B
User's and Installation Guide