Eaton Power Xpert 9395C Installation And Operation Manual

Eaton Power Xpert 9395C UPS Installation and Operation Manual 164000821—Rev 06 27The battery wiring used between the battery and the UPS should not allow a voltage drop of more than 1% ofnominal DC voltage at rated battery current.External DC input overcurrent protection and disconnect switch is to be provided by the customer. Table 14lists the maximum ratings for continuous–duty rated circuit breakers satisfying the criteria for both.Recommended disconnect size is based on a maximum full load discharge time less than 3 hours. For longerdischarge times a larger disconnect may be required.Table 14. Recommended DC Input Battery Disconnect RatingsUPS ModelInput Rating480VEaton 9395C-1000/1000Eaton 9395C-1000/1100Eaton 9395C-1100/1100300A33..22..55 UUPPSS SSyysstteemm IInntteerrffaaccee WWiirriinngg PPrreeppaarraattiioonnControl wiring for features and options should be connected at the customer interface terminal blocks locatedinside the UPS.Do not directly connect relay contacts to the mains related circuits. Reinforced insulation to the mains isrequired.Ne pas directement brancher les contacts de relais aux circuits du réseau. Une isolation renforcée des réseauxest nécessaire.Read and understand the following notes while planning and performing the installation:• Use Class 1 wiring methods (as defined by the NEC) for interface wiring from 30V to 600V. The wireshould be rated at 600V, 1A minimum and 12 AWG maximum.• Use Class 2 wiring methods (as defined by the NEC) for interface wiring up to 30V. The wire should berated at 24V, 1A minimum. When Class 2 circuit wiring must be mixed with Class 1 wiring, use Class 1wire and wiring methods.• Use shielded twisted-pair wires for each input and return or common.• All interface wiring and conduit is to be provided by the customer.• When installing external interface wiring (for example, building alarm, relay output, battery breaker trip, andX-Slot) to the UPS interface terminals, conduit must be installed between each device and the UPScabinet.• Install the interface wiring in separate conduit from the power wiring.• When installing internal interface wiring to X-Slot terminals, route the wiring through the internal opening inthe X-Slot communication bay.• All building alarm inputs or remote features require an isolated normally-open contact or switch (rated at24 Vdc, 20 mA minimum) connected between the alarm input and common terminal. All control wiring andrelay and switch contacts are customer-supplied, see above.UPS Installation Plan and Unpacking