Installing A Repo Switch; Figure 4-19. Repo Switch - Eaton Power Xpert 9395 550/275 Installation And Operation Manual

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UPS System Installation

4.8

Installing a REPO Switch

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 4-19

shows a REPO switch.

NOTE

To Install a REPO switch:

Verify the UPS system is turned off and all power sources are removed. See Chapter 7, "UPS Operating

Instructions" for shutdown instructions.

Securely mount the REPO switch. Recommended locations include operator's consoles or near exit

doors. See Figure 3-7 for enclosure dimensions and wiring knockouts.

Unfasten the front door latch and swing the door open (see Figure 4-2).

Remove the door. Remove the retaining screw located inside the door at the bottom hinge pivot point,

then lift the door off. Retain the hardware for later use.

If installing interface wiring through the left interface entry conduit landing, proceed to Step 6; otherwise,

proceed to Step 8.

4-24

Power Xpert

Before installing a REPO switch, verify that the UPS was installed according to the

instructions in paragraphs 4.2 through 4.7.

When installing the REPO switch, you must install conduit between the device and

the UPS cabinet for wiring the switch.

Remove the UPS cabinet interface entry conduit landing plates to drill or punch

holes (see Figure 4-4).

The REPO switch must be a normally-open or normally-closed latching–type switch

not tied into any other circuits.

This procedure is intended to be used for the installation of the Eaton-supplied

REPO switch. If installing another manufacturer's switch, use this procedure only as

a guide.

The REPO switch wiring must be in accordance with NEC Article 725 Class 2

requirements.

REPO Switch (Front View)

9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716—Rev 8 www.eaton.com/powerquality

Contact Block (Back View, Faceplate Removed)

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