APC MW II Relay Boards, Location of relay boards, Communication cables with optional Relay Board

Page 17

Relay Boards

Location of relay boards

Normal

UPS Summary

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Relay boards

Communication cables with optional Relay Board

Backplane X008A

Fan CAN X008A

Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001

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Image 17

Contents Installation Page Contents Specifications Installation safety Symbols used in this guidePage Serial number UPS SectionsInverter Section Control/Input/Output SectionExternal Bypass Static Switch Overview UPS Wiring PrinciplePower wiring Input/Output wiring precautions External disconnection switchesAC and PE cable connections  Hole distance AC Battery cables connection BAT1 + BAT2 External Bypass Static Switch Wiring Top cable entry Communication cable overview Maintenance Bypass PanelCommunication cables with optional Relay Board Relay BoardsLocation of relay boards Relay board 1 connections Relay Function Mode Special CommentsRelay board 2 connections Page Low-Impedance/High-Impedance Earthing Electrical SpecificationsDC Input AC InputHeat dissipation AC OutputAC Input External Bypass SSW Input and upstream breakers Required Breaker Settings 400 V SystemsTorque specifications Output and downstream breakers Dual Mains Installation System and Protective Earthing CharacteristicsTN Systems Reference to IEC 60364-4-41Protective devices in TN systems Additional requirements for generating sets IEC 60364-5-55Protective devices in TT systems TT SystemsIT Systems Protective devices in IT systems ConditionSee IEC Legal in DK specialcases Symmetra MW Switchgear Service Entrance Earthing arrangements and protective conductors Grounding Page Page 2009 990-1979E-001