Eaton Powerware 9395 UPS 10001100 kVA Installation And Operation Manual page 80

UPS SYSTEM INSTALLATION
4−36
EATON Powerware
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 4-29). 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 4-31 shows the wiring connections if the normally−closed REPO contacts are
used and Figure 4-32 shows alternative methods of connecting a REPO switch if
using another manufacturer's switch.
REPO
Switch
(NC)
NOTE REPO switch rating is 24 Vdc, 1A minimum.
T
NOTE 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.
®
9395 UPS (1000–1100 kVA) Installation and Operation Manual
1
Twisted
Wires
2
Figure 4-31. Normally-Closed REPO Switch Wiring
S
164201764 Rev 1 www.powerware.com
1 (NC)
2 (Return)
UPS TB1
3 (NO)
4 (Return)