Powerware 100160 kVA manual Installing a Remote Emergency Power-off Switch, Repo Switch

Chapter 5

Installing a Remote Emergency Power-off Switch

A latching-type 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 5-1 shows a REPO switch.

UNINTERRUPTIBLE POWER SYSTEM

EMERGENCY OFF

To UPS To Other Equipment

Figure 5-1. REPO Switch

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 top or bottom conduit landing plate to punch conduit holes (see Drawing 164201604-6 on page A-27).

NOTE The REPO switch must be a latching-type switch with a dedicated circuit.

1.Securely mount the REPO station. Recommended locations include operator’s consoles or near exit doors. See Drawing 164201604-10 on page A-50 for enclosure dimensions and wiring knockouts.

2.Verify the UPS system is turned off and all power sources are removed. See Chapter 10, “UPS Operating Instructions” for shutdown instructions.

3.If not already open, unfasten the front door latch and swing the door open.

4.If not already removed, remove the doors. Remove the retaining screws located inside each door at the top and bottom hinge pivot points, then lift the door off. Retain the hardware for later use.

5.Remove the screws securing the control panel door and swing the door open. Retain the hardware for later use.

EATON Powerware® 9390 UPS (100–160 kVA) Installation and Operation Manual S 164201604 Rev B powerware.com 5-1