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
