Powerware 9355 - Manual (Page 29)

PARALLEL INSTALLATION
EATON Powerware ® 9355 Parallel UPS (10/15 kVA) User’s Guide S 164201601 Rev A www.powerware.com 23
15. Hardwire the load to the parallel tie cabinet (see Figure 17).
16. Wire the maintenance bypass contacts and terminate to the
maintenance bypass wires in the parallel tie cabinet (see Figure 15).
Connect the black and the red wire to TB2 on the UPS. Cap the
blue wire.
NOTE The maintenance bypass contacts are normally-open. To ensure proper bypass
operation, DO NOT use the blue wire (it is normally-closed).
17. Replace the UPS wiring access cover and conduit landing plate.
18. Repeat Steps 12 through 17 for each UPS.
Ground
Line 1
Neutral
Line 2 Line 3
Maintenance Bypass
Wiring to UPS TB2
Figure 17. Load Connections