Figure 5-2. Repo Wiring - Eaton Powerware 9390 Installation And Operation Manual

INSTALLING A REMOTE EMERGENCY POWER-OFF CONTROL
5-2
EATON Powerware
NOTE REPO switch rating is 6A/120 Vac or 3A/240 Vac. The REPO switch must be a latching-type switch
with a dedicated circuit.
5. If you are installing multiple REPO stations, wire additional stations in parallel
with the first REPO station.
6. If required, install ½" conduit and wiring from the second contact block in the
REPO station to trip circuitry of other equipment, such as upstream protective
devices, facility monitoring devices, or alarms. Using the contact block that was
not used for the UPS EPO wiring will help maintain isolation between the control
systems.
A normally‐open (NO) contact and a normally‐closed (NC) contact are provided,
and the two are electrically isolated. If single-pole, double-throw action is desired,
one side of the NO contact can be jumpered to one side of the NC contact to
form the common connection point. REPO switch wiring must be according to
UL Class I requirements.
7. Secure the UPS by reversing all steps taken to prepare it for a REPO station
installation.
®
9390 UPS (20–80 kVA) Installation and Operation Manual
4
REPO
CUSTTB
Switch
5
Twisted Wires (2)
Figure 5‐2. REPO Wiring
S
164201603 Rev 2 www.powerware.com