American Power Conversion MW manual General Specifications 480, Nema

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General Specifications 480 V

Backfeed protection	Built-in in the UPS

Humidity	Max. 95% non-condensing

Protection class	NEMA 1

Safety	UL 1778 listed

Emission and immunity	FCC part 15, sub part J Class A (conducted/radiated)

Symmetra MW 1000 kW 480 V Installation - 990-4112E

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Contents Installation Page Contents Specifications Symbols used in this guide SafetyEPO Installation safetySerial number UPS SectionsInverter Section Control SectionConfiguration 1 Inverter Section placed to the left ConfigurationsTotal width of UPS sections 4138 mm/163 Weight Configuration 2 Inverter Section placed to the rightExternal Bypass Static Switch Power wiring overview Typical UPS Wiring PrincipleInput/Output wiring precautions External disconnection switchesTop Cable Entry Preparing for top cable entry defaultBattery cable connections top cable entry Front view of Input/Output Section Ground and AC cable connections top cable entry Preparing for bottom cable entry Bottom Cable EntryElectrical Installation Bottom Cable Entry Battery cable connections bottom cable entry Battery BAT 1 + BAT 2 + IN/OUT power cable bottom entry Ground and AC cable connections bottom cable entry Bypass Static Switch Wiring Top cable entry Bottom cable entry Connectionplane 0P0957 Communication cable overviewLocation of optional Relay Board Relay Board OptionalCommunication cables with optional Relay Board Relay Board functions Relay Name Events that will trigger the alarm Mode CommentIN1 Page High-impedance grounding Low-Impedance/High-Impedance GroundingLow-impedance grounding Specifications Low-Impedance/High-Impedance Grounding Installation Planning Data Electrical SpecificationDC Input AC InputHeat Dissipation AC OutputAC Input External Bypass SSW 16 National Electrical Code Size Temperature Rating of Cables See Table Recommended cable, bolt, and lug sizes Torque specificationsOutput and downstream breakers minimum settings Required Breaker SettingsInput and upstream breakers minimum settings Dual Utility Installation Nema General Specifications 480990-4112E