Eaton 9PXM User Manual

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4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 09 37CChhaapptteerr 44 UUPPSS EElleeccttrriiccaall IInnssttaallllaattiioonn44..11 UUPPSS IInnppuutt CCuurrrreenntt RRaattiinnggssWARNINGRisk of electrical shock. Only qualified service personnel (such as a licensed electrician) should perform theelectrical installation in this section.If a bypass switch is not used, the UPS input may be hardwired through conduit to a main power source circuitbreaker, and the UPS output may either be hardwired to a circuit breaker in a distribution panel (as shown inFigure 31) or supplied to loads through optional receptacles on the back of the UPS. Without a bypass switch,power to the load cannot be maintained if the UPS is taken completely offline.Figure 32. Typical Installation without a Bypass SwitchBuildingServicePanelLoadDistributionPanelUser-Supplied(if required)External BatteryModule(optional)Table 5 contains the required circuit breaker ratings for hardwired installations.