Eaton FerrUPS FE Installation Manual

INTERNAL BYPASS SWITCH INSTALLATIONEaton FERRUPS FE/QFE UPS (500 VA–18 kVA) Installation Guide 164201403 Rev Bwww.eaton.com/powerquality462. Review the installation wiring diagram and applicable notes to findthe proper circuit breaker size for your installation. In the U.S., seeTable 22 to size the wire. In other areas, use 75°C copper wire andsize according to the local code.Table 22. Recommended Wire SizesInput Circuit Breaker Size 75°C Copper Wire Size15A, 20A 12 AWG (3.3 mm2)25A, 30A 10 AWG (5.3 mm2)35A, 40A, 45A, 50A 8 AWG (8.4 mm2)60A 6 AWG (13.3 mm2)70A, 80A 4 AWG (21.2 mm2)90A, 100A 3 AWG (26.7 mm2)110A 2 AWG (33.6 mm2)125A 1 AWG (42.1 mm2)150A 1/0 AWG (53.5 mm2)FOR U.S. INSTALLATIONS, READ THIS IMPORTANT NOTE!This table lists the AWG and mm2 wire size for each circuit breaker size shown on the wiring diagrams. The minimumrecommended circuit breaker sizes for each model and voltage application are listed on the wiring diagrams.Conductor sizes shall be no smaller than the 75°C wire size based on the ampacities given in Table 310–16 of theNational Electrical Code, ANSI/NFPA 70-1999, and article 220. All circuit conductors, including the neutral andequipment grounding conductors, must be the same size (ampacity) wire. Code may require a larger AWG size thanshown in this table because of temperature, number of conductors in the conduit, or long service runs. Follow localcode requirements.3. Remove the screws in the lower part of the bypass switch frontcover and remove the lower cover panel.Remove the knockouts or plugs in the bottom of the bypass switchfor AC Line Input, AC from UPS Output, and AC to the UPS load.4. Install the conduit adapters. AC Input and AC Output conductorsmust be run through separate pieces of conduit. UPS output circuitsshall be installed in dedicated conduit systems and not shared withother electrical circuits.