UPS System InstallationEaton 9E UPS (80-200 kVA, 380/400/415V) Installation and Operation Manual 4-54.4 External Power Wiring InstallationWithout accessory cabinets, conduit and wiring enter from the bottom of the UPSconduit landing plate. With accessory cabinets, wiring can be installed between theUPS and accessory cabinets by using conduit or by routing wiring through thepower terminal cover base wiring channels.NOTETo install wiring:1. Route the wiring to the UPS terminal blocks in the UPS. Figure 4-6 and Figure 4-7 for wiring accessinformation and terminal locations.2. Ground the UPS according to local and/or national electrical wiring codes by routing and connecting theground wire to the input ground lug. See Figure 4-6 for UPS terminal locations.For a detailed view of the UPS ground terminals, see Figure 4-6 and Figure 4-7.3. Connect phase A, B, C, and Neutral rectifier input power wiring from the utility source to the rectifier inputand neutral terminals. In UPS itself there are jumpers which are fixed between the input and bypassterminals: L1-L1, L2- L2, L3- L3. See paragraph 3.2.2 for wiring and termination requirements.For a detailed view of the UPS terminal block, see Figure 4-6 and Figure 4-7.4. If wiring a dual-feed system, proceed to Step 5; otherwise, proceed to Step 6.5. Remove the jumpers between the input and bypass terminals, connect phase A, B, and C, and Neutralbypass input power wiring from the utility source to the bypass input terminals and neutral terminals. Seeparagraph 3.2.2 for wiring and termination requirements.Attention: Mains input N and Bypass input N will be connected together inside UPSFor a detailed view of the UPS terminal block, see Figure 4-6 and Figure 4-7.6. Connect phase A, B, and C, and Neutral power wiring from output terminals and neutral terminals to thecritical load. See paragraph 3.2.2 for wiring and termination requirements.For a detailed view of the UPS terminal block, see Figure 4-6 and Figure 4-7.7. If wiring interface connections, proceed to paragraph 4.5; .WARNINGWARNING• HIGH TOUCH CURRENT. EARTH CONNECTION ESSENTIAL BEFORE CONNECTINGSUPPLY. As a result of the connected loads high leakage current is possible. Connection of theearth (ground) is required for proper product operation. Do not check UPS operation byremoval of the Earth (ground) connection.• BAT+/BAT- are terminals connected to the battery cabinet, Battery+ polarity should use redcable, 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 connectionterminal bay without AC input idle-run.• Protective earthing terminals on the UPS for mains supply and load supply use only. The earthprotection of battery cabinet must be connected individually, no relation to UPS.ENSURE CORRECT POLARITY!Refer to instructions provided with the battery cabinet or by vendor.