Powerware 9395 UPS and Plus 1 UPS 650825 kVA - Manual (Page 87)

UPS SYSTEM INSTALLATION
EATON Powerware ® 9395 UPS (650–825 kVA) Installation and Operation Manual S 164201725 Rev 2 www.powerware.com 4−41
12. If required, install wiring from the REPO switch to the trip circuitry of the
upstream protective devices. A second contact block is provided on the REPO
switch for this function (see Figure 4-34). The REPO switch wiring must be in
accordance with NEC Article 725 Class 2 requirements.
13. Reinstall the top internal safety shield panel and secure with the retained
hardware.
14. Reinstall the front door removed in Step 4 and secure with the retained
hardware.
15. Close the door and secure the latch.
Figure 4-36 shows the wiring connections if the normally−closed REPO contacts are
used and Figure 4-37 shows alternative methods of connecting a REPO switch if
using another manufacturer’s switch.
3 (NO)
UPS TB1
REPO
Switch
(NC)
Twisted
Wires
1 (NC)
2 (Return)
4 (Return)
NOTE REPO switch rating is 24 Vdc, 1A minimum.
NOTE
T he REPO switch must be a latching−type switch not tied to any other circuits.
NOTE REPO normally−open and normally−closed return terminals are separated on
the terminal board but are electrically in common.
1
2
Figure 4-36. Normally-Closed REPO Switch Wiring