Eaton FERRUPS Installation Manual

Also see for FERRUPS: User guide

ELECTRICAL INSTALLATIONEaton FERRUPS Rack Mount UPS (850 VA–7 kVA) Installation Guide 164201425 Rev 1www.eaton.com/powerquality57Installation Wiring Diagrams for External Bypass SwitchesThe following notes are referenced in the external bypass switch wiringdiagrams (Figure 34 through Figure 42). To determine which diagram iscorrect for your site, see Table 12 on page 53.NOTE 1 The customer must provide input overcurrent protection as statedin NEC Section 240-21 or local codes. Size the protection device according tolocal code requirements.NOTE 2 The UPS bypass switch/AC disconnect must be installed withinsight of the UPS. To properly install, complete the phase check starting onpage 75.NOTE 3 The customer must provide and install this ground connectionaccording to NEC Sections 250-20(d), 250-30, 250-62, and 250-64 or localrequirements. This grounding electrode conductor must be at least #8 AWG(8.36 mm), per NEC table 250-66. If the UPS input circuit conductors arelarger than #8 AWG (8.36 mm), aton requires the grounding electrodeconductor to be the same size (ampacity) as the largest UPS input circuitconductor. Refer to NEC Section 110-3(b). Conduit is not considered anacceptable grounding electrode conductor. aton does not recommendrouting the grounding electrode conductor through metallic conduit. Thisconductor may require protection from physical damage according to localrequirements.NOTE 4 All circuit conductors, including the neutral and equipmentgrounding conductors, must be the same size (ampacity) and have the samerating (75°C copper wire), and must be sized according to the inputprotection device.NOTE 5 The customer must provide output overcurrent protection asstated in NEC Section 240-21 or local codes. Size the protection deviceaccording to local code requirements.NOTE 6 For maximum protection against electrical noise, use isolatedground receptacles. Refer to NEC Section 250-146(d) or local requirements.NOTE 7 Do not block air inlets and outlets.NOTE 8 External UPS batteries are optional. The battery cable must notbe disconnected if a load is applied. Shut off the UPS before disconnectingthe cable. See “Battery Cabinet Installation” on page 21 for externalbattery cabinet installation.NOTE 9 UPS output circuits must be installed in dedicated conduit andnot shared with other electrical circuits.NOTE 10 The load fuse or circuit breaker should be sized to match theload current requirements.NOTE 11 Connect to L1 for 208 Vac or L2 for 240 Vac.