External Power Wiring Installation - Eaton 93E Operation Manual

UPS System Installation
4.5

External Power Wiring Installation

To install wiring:
1. Route the wiring to the UPS terminal blocks in the UPS. Figure 4-2 for wiring access information and
terminal locations.
2. 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 4-2 for UPS terminal locations.
For a detailed view of the UPS ground terminals, see Figure 4-2.
3. Connect phase A, B, C, and Neutral rectifier input power wiring from the utility source to the rectifier input
and neutral terminals. See paragraph 3.2.2 for wiring and termination requirements.
For a detailed view of the UPS terminal block, see Figure 4-2.
4. Bypass input power wiring from the utility source to the bypass input terminals and neutral terminals. See
paragraph 3.2.2 for wiring and termination requirements.
Attention: Mains input N and Bypass input N are connected together inside UPS
For single feed installation, jumpers the input and bypass terminals( L1-L1, L2- L2, L3- L3) must be
installed.
For a detailed view of the UPS terminal block, see Figure 4-2.
5. Connect phase A, B, and C, and Neutral power wiring from output terminals and neutral terminals to the
critical load. See paragraph 3.2.2 for wiring and termination requirements.
For a detailed view of the UPS terminal block, see Figure 4-2.
6. If wiring interface connections, proceed to paragraph 4.6.
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4-4 Eaton 93E UPS (300/400 kVA, 380/400/415V) Installation and Operation Manual
NOTE
Without accessory cabinets, conduit and wiring enter from the bottom of the UPS
conduit landing plate. With accessory cabinets, wiring can be installed between the
UPS and accessory cabinets by using conduit or by routing wiring through the
power terminal cover base wiring channels.
HIGH TOUCH CURRENT. EARTH CONNECTION ESSENTIAL BEFORE CONNECTING
SUPPLY. As a result of the connected loads high leakage current is possible. Connection of the
earth (ground) is required for proper product operation. Do not check UPS operation by
removal of the Earth (ground) connection.
BAT+/BAT- are terminals connected to the battery cabinet, Battery+ polarity should use red
cable, battery- polarity should use black or blue cable.
This device may not be fitted with an optional internal mains disconnection device. If not
fitted, it is essential that the customer install such a device at the installation site near the
UPS.
Input neutral line should be directly connected to input "N" terminal of UPS wire connection
terminal bay without AC input idle-run.
Protective earthing terminals on the UPS for mains supply and load supply use only. The earth
protection of battery cabinet must be connected individually, no relation to UPS.
WARNING