Powerware 10001100 kVA operation manual Installing a Repo Switch, Repo Switch Front View

UPS SYSTEM INSTALLATION

4.10Installing 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 4-29shows a REPO switch.

NOTE Before installing a REPO switch, verify that the UPS was installed according to the instructions in paragraphs 4.2 through 4.9.

NOTE When installing the REPO switch, you must install conduit between the device and the UPS cabinet for wiring the switch.

NOTE Remove the UPS cabinet interface entry conduit landing plates to drill or punch holes (see Figure 4-16on page 4−18).

NOTE The REPO switch must be a normally−open or normally−closed latching-type switch not tied into any other circuits.

NOTE This procedure is intended to be used for the installation of the Eaton Corporation−supplied REPO switch. If installing another manufacturer’s switch, use this procedure only as a guide.

NOTE 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,

2.Securely mount the REPO switch. Recommended locations include operator’s consoles or near exit doors. See Figure 3-10on page 3−7 for enclosure dimensions and wiring knockouts.

3.Unfasten the front door latch and swing the door open (see Figure 4-1on page 4−2).

4.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.

REPO Switch (Front View) Contact Block (Back View, Faceplate Removed)

Figure 4-29. REPO Switch

4−34 EATON Powerware® 9395 UPS (1000–1100 kVA) Installation and Operation Manual S 164201764 Rev 1 www.powerware.com