American Power Conversion 20-30 kVA 480V manuals
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American Power Conversion 20-30 kVA 480V Important Safety Instructions
4 pages 1.7 Mb
*990-2870B* InstallationIMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS 1Preparing for cabling (general) Preparing for bottom and top entry Preparing for top cable entry 2LandingsBottom cable entry Preparing to connect the load to the PDU(s) 2 34Connecting load to the 4-pole breaker Connecting load to the 3-pole breaker(s) Smart-UPS VT ISX w/transformer and PDU, 20-30 kVA, 480 V, Installation Disconnecting the load from the PDU(s)Smart-UPS VT ISX w/transformer and PDU, 20-30 kVA, 480 V, Installation Rear of unit 3 5To disconnect the load, set the applicable breaker to the OFF position. PDU output breaker ratingsEmergency Power Off (EPO) switch must be connected to a NEC Class 2 circuit. Remove top cable landing covers as described under Batte ry Cable Landings, top entry. J108 Pin Connections: J106 Pin Connections: EPO (Emergency Power Off) switch wiring pin connections J108 (for EPO wiring options)Connect the EPO cable, using one of the following 4 wir ing configurations: The UPS must be connected to either a dry contact or a 24 VDC EPO switch. Always follow the pin connection procedures from the top an d work down: J106 (8-1), J108 (1-6).1: Dry Contracts Normally Open 2: +24V Normally Open 3: Dry Contacts Normally Closed 4: +24V Normally Closed Pin connections J106 (UPS) communication equipment through the opening in the top cover. the inside of the left side panel down to the opening in the pow er module frame. Connect communication equipment where shown. When connecting the Q3 auxiliary signal, use gold-plated N/C auxiliary switch on Q3. Reinstall cable landing covers. The APC communication options are provided at the front of the UPS. 4 6Minimum breaker settings Recommended phase-conductor sizes [AWG] for a 86F (30C) temperature environment Recommended current protection 7 8
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