Figure 4-29. Normally-Open Repo Switch Wiring - Eaton Power Xpert 9395P-900 Series Installation And Operation Manual

UPS System Installation
5. To gain access to terminal block TB1 and the interface entry conduit landing plate, remove the screws
securing the top internal safety shield panel and remove the panel. Retain the hardware for later use (see
Figure 4-21).
6. Remove the left interface entry conduit landing plate to drill or punch holes (see Figure 4-16).
7 . Reinstall the interface entry plate and install conduit.
8. To locate the appropriate terminals and review the wiring and termination requirements, see paragraph
3.2.3, Table 4-1, and Figure 4-21through Figure 4-24.
9. Route and connect the wiring as shown in Table 4-2 and Figure 4-29.
10. If the normally-closed REPO TB1 connection in the UPS is not used, connect a jumper wire between pins
1 and 2 on TB1.
11. If you are installing multiple REPO switches, wire additional switches in parallel with the first REPO.
Table 4-2. REPO Wire Terminations
From REPO Station(s) To Customer Interface
Switch Contact Block Terminal Board TB1 in
(Either Block)
3 NO
4 NO

Figure 4-29. Normally-Open REPO Switch Wiring

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 4-28). 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.
®
4-36 Eaton Power Xpert
Wire Size
UPS Cabinet
TB1-3
Twisted Wires (2) 14–22 AWG
(0.75–4.0 mm2)
TB1-4
REPO
Switch
(NO)
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.
®
9395P-900 UPS Installation and Operation Manual P-164000501—Rev 09
3
Twisted
Wires
4
www.eaton.com/powerquality
Tightening Torque
7 lb in
(0.8 Nm)
1 (NC)
2 (Return)
UPS TB1
3 (NO)
4 (Return)