Powerware 9390 UPS 100160 kVA - Manual (Page 195)

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164201603-8
DESCRIPTION:
DATE:
DRAWING NO: SHEET:
REVISION:
INTERFACE WIRING INSTALLATION
NOTES AND TERMINAL LOCATIONS
6 of 15
INSTALLATION INFORMATION
EATON Powerware ® 9390 UPS (20–80 kVA) Installation and Operation Manual S 164201603 Rev 2 www.powerware.com A-47
11. The Remote EPO feature opens all contactors in the UPS cabinet and isolates power from
your critical load. Local electrical codes may also require tripping upstream protective
devices to the UPS. The REPO switch must be a latching‐type switch with a dedicated
circuit.
12. A jumper wire must be connected between pins 1 and 2 on TB1, if a normally‐closed EPO
switch is not used or a normally‐open EPO switch is used.
13. Remote EPO wiring should be a minimum of 22 AWG.
Table Z. Remote EPO
1 (NC)
4 (RETURN)
TWISTED
WIRES
UPS TB1
REMOTE
EPO
SWITCH
REMOTE
EPO
SWITCH
2 (RETURN)
3 (NO)
(NC TYPE)
(NO TYPE)
TWISTED
WIRES
OR
LATCHING‐TYPE
SWITCH ONLY
INSTALL
JUMPER IF
SWITCH NOT
INSTALLED
THIS POSITION
SWITCH ONLY
LATCHING‐TYPE
Remote EPO switch rating is 24 Vdc, 1A minimum.
NOTE: The REPO switch must be a latching‐type switch with a
dedicated circuit.