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EATON Powerware
®
9155 Parallel UPS (8–15 kVA) User’s Guide S 164201592 Rev C www.powerware.com
13
Chapter 4 Parallel Installation
The Powerware 9155 has the following power connections:
S 2-phase (L1 and L2), neutral, and ground connection for
rectifier/bypass input
S 2-phase (L1 and L2), neutral, and ground connection for load output
The nominal input/output voltages are:
S 100/200, 110/220, or 120/240 Vac with 180° phase displacement
S 120/208 or 127/220 Vac with 120° phase displacement
Output overcurrent protection and disconnect switch must be provided
by others.
Figure 14 on page 22 shows a oneline diagram of the parallel UPS
system.