46 Eaton 93E UPS (20–30 kVA, 208/220V) Installation and Operation Manual 164000301—Rev 04
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A latching-type Remote Emergency Power-off (REPO) 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. Figure 24
shows a REPO switch.
NOTE 1 Before installing a REPO switch, verify that the UPS was installed according to the
instructions in paragraphs 4.2 Unloading the UPS Cabinet from the Pallet through
4.11 Installing Interface Wiring and Connections.
NOTE 2 When installing the REPO switch, you must install conduit between the device and the
UPS cabinet for wiring the switch.
NOTE 3 The REPO switch must be a normally-open or normally-closed latching-type switch not
tied into any other circuits.
NOTE 4 This procedure is intended for installing the Eaton-supplied REPO switch. If installing
another manufacturer's switch, use this procedure, and Figure 26 and Figure 27 as a
guide.
NOTE 5 The REPO switch wiring must be in accordance with NEC Article 725 Class 2
requirements.
To Install a REPO switch:
1. Verify the UPS system is turned off and all power sources are removed. See
Chapter 7 UPS Operating Instructions, for shutdown instructions.
2. Securely mount the REPO switch. Recommended locations include operator's consoles or near exit doors.
See Figure 5 for enclosure dimensions and wiring knockouts.
3. To locate the appropriate terminals and review the wiring and termination requirements, see paragraph
3.2.3 UPS System Interface Wiring Preparation, Table 13, Figure 16, Figure 17, and Figure 25.
Figure 24. REPO Switch
REPO Switch (Front View) Contact Block (Back View, Faceplate Removed)
UPS System Installation
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