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4.9. Installing a Remote EPO Switch
A remote EPO switch can be used in an emergency to shut down the UPS and remove power to the
critical load from a location away from where the UPS is installed.
EPO is to be connected to the UPS’s top front panel, on connector EPO. Below are the NO and NC
connections of the EPO switch.
Table 4-4: Normally-Open REPO Connections and Wire Terminations
From REPO
Station
Switch
Contact
Block
(Either Block)
UPS
REPO
Terminal
Name
Description
Recommended
Minimum Wire
Size
Size of Wire
Termination
Tightening
Torque
3 NO
3
EPO_ A
Input: Normally-open
dry contact used to
activate UPS EPO from
a remote switch
Twisted Pair
Wires #18 AWG #16-#30 AWG
2 lb in
(0.22-0.25 Nm)
4 NO
4
EPO_B
Figure 4-18: Normally-Open REPO Switch Wiring
NOTE
The REPO switch must be a latching-type switch not tied to any other circuits.
Summary of Contents for 93PR Series
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