American Power Conversion MW manual Bypass Static Switch Wiring

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Bypass Static Switch Wiring

WARNING!

Use only manual reset protection as input over-current protection.

WARNING!

Over-current protection required by code.

WARNING!

The UPS has no internal manual disconnect devices to switch off external AC (Q1 and Q5) and DC (Q7 and Q8) input power. Ensure that disconnection devices are available as separate components for this installation.

CAUTION!

The External Bypass Static Switch is not provided with built-in backfeed protection. The breaker is controlled from the External Bypass SSW and will be tripped in case of backfeed.

The installer must provide each external disconnection device for this UPS system with labels displaying the following text:

“Isolate the Uninterruptible Power Supply (UPS) as instructed in the User Guide before Note working on circuit.”

The installation of the External Bypass Static Switch must comply with local and national codes.

Note

Run matched set of phase cables in the same cable run(s).

Do not separate phases into different cable runs.

Note

For information on cable lugs, cable ratings, over-current protection and the disconnection switches, refer to “Specifications” .

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Contents Installation Page Contents Specifications Safety Symbols used in this guideInstallation safety EPOInverter Section UPS SectionsSerial number Control SectionConfigurations Configuration 1 Inverter Section placed to the leftConfiguration 2 Inverter Section placed to the right Total width of UPS sections 4138 mm/163 WeightExternal Bypass Static Switch Typical UPS Wiring Principle Power wiring overviewExternal disconnection switches Input/Output wiring precautionsPreparing for top cable entry default Top Cable EntryBattery cable connections top cable entry Front view of Input/Output Section Ground and AC cable connections top cable entry Bottom Cable Entry Preparing for 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 Communication cable overview Connectionplane 0P0957Relay Board Optional Location of optional Relay BoardCommunication cables with optional Relay Board Relay Name Events that will trigger the alarm Mode Comment Relay Board functionsIN1 Page Low-impedance grounding Low-Impedance/High-Impedance GroundingHigh-impedance grounding Specifications Low-Impedance/High-Impedance Grounding Electrical Specification Installation Planning DataAC Input DC InputAC Input External Bypass SSW AC OutputHeat Dissipation 16 National Electrical Code Size Temperature Rating of Cables See Table Torque specifications Recommended cable, bolt, and lug sizesInput and upstream breakers minimum settings Required Breaker SettingsOutput and downstream breakers minimum settings Dual Utility Installation General Specifications 480 Nema990-4112E