Eaton 93PM Series - UPS System Power Wiring Preparation

Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07 45
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IMPORTANT
This product has been evaluated for use with copper wire only. For external wiring, use only 75°C copper wire.
To install wiring:
1. Open the front door by lifting the latch from the bottom and turning to the right (counterclockwise) and
swing the door open.
2. Remove the screws securing the bottom internal safety shield panel and remove the panel to gain access
to the input, output, and battery power wiring terminals. Retain the hardware for later use.
3. If wiring the UPS using the top entry sidecar, proceed to Step 7; otherwise proceed to Step 4.
4. Bottom Entry Wiring. Remove the bottom conduit plate (see Figure 17) from the inside bottom of the
UPS. Identify all conduit requirements and mark their location. Drill and punch all conduit holes in the
bottom conduit plate prior to mounting on the UPS. Install the conduit plate and install all conduit runs into
the plate. Pull the wiring through conduit into the wiring area.
5. Route the input and output cables through the bottom of the cabinet to the UPS terminals. See Figure 20
for terminal locations.
6. Proceed to Step 11.
7. If not already accomplished, remove the bottom screw securing the sidecar front panel. Lift the panel
straight up to remove from the panel hanger brackets at the top of the cabinet.
8. Remove the screws securing the sidecar internal safety shield panel and remove the panel to gain access
to the interior of the sidecar and the UPS inter-cabinet wiring access pass-through. Retain the hardware for
later use.
9. Top Entry Wiring. Remove the top conduit plate (see Figure 18) from the top of the sidecar. Identify all
conduit requirements and mark their location. Drill and punch all conduit holes in the top conduit plate prior
to mounting on the sidecar. Install the conduit plate and install all conduit runs into the plate. Pull the wiring
through the conduit into the wiring area.
10. Route the input and output cables through the top of the UPS sidecar and the UPS inter-cabinet wiring
access pass-through to the UPS terminals.
WARNING
As a result of the connected loads high leakage current is possible. Connection to earth ground is required for
safety and proper product operation. Do not check UPS operation by any action that includes removal of the
earth (ground) connection with loads attached.
11. Ground the UPS according to local and/or national electrical wiring codes by routing and connecting the
ground wire to the input ground lug. See Figure 20 for UPS terminal locations.
For a detailed view of the UPS ground terminals, see Figure 21.
12. Connect phase A, B, and C rectifier input power wiring from the utility source to the rectifier input
terminals. See paragraph 3.2.2 UPS System Power Wiring Preparation for wiring and termination
requirements.
For a detailed view of the UPS terminal blocks, see Figure 21.
13. Connect phase A, B, and C bypass input power wiring from the utility source to the bypass input terminals.
See paragraph 3.2.2 UPS System Power Wiring Preparation for wiring and termination requirements.
For a detailed view of the UPS terminal blocks, see Figure 21.
UPS System Installation