Figure 4-21. Normally-Open Repo Switch Wiring - Eaton Power Xpert Plus 1 Installation And Operation Manual

UPS SYSTEM INSTALLATION
NOTE REPO switch rating is 24 Vdc, 1A minimum.
NOTE
NOTE REPO normally-open and normally-closed return terminals are separated on the terminal board but are electrically in common.
t
4-28
Power Xpert 9395 UPS (450–550 kVA) Installation and Operation Manual
3
REPO
Switch
(NO)
4
T he REPO switch must be a latching-type switch not tied to any other circuits.
Figure 4‐21. Normally-Open REPO Switch Wiring
15. 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 4‐20). The REPO switch wiring must be in
accordance with NEC Article 725 Class 2 requirements.
16. Reinstall the small top internal safety shield panel and secure with the cabinet
mounted screws.
17. Reinstall the front door removed in Step 4 and secure with the retained
hardware.
18. Close the front door and secure the latch.
19. If removed, reinstall the safety shield panel removed in Step 7. Secure with the
retained hardware.
20. If removed, reinstall the left front panel removed in Step 6 and secure with the
retained hardware.
Figure 4‐22 shows the wiring connections if the normally-closed REPO contacts are
used and Figure 4‐23 shows alternative methods of connecting a REPO switch if
using another manufacturer's switch.
1 (NC)
2 (Return)
UPS TB1
3 (NO)
Twisted
Wires
4 (Return)
S
164201701 Rev 3 www.eaton.com/powerquality