APC MW II manual

Contents Installation Page Contents Specifications Installation safety Symbols used in this guidePage Control/Input/Output Section UPS SectionsSerial number Inverter SectionExternal Bypass Static Switch UPS Wiring Principle Power wiringOverview 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 PanelRelay Boards Location of relay boardsCommunication cables with optional Relay Board Relay board 1 connections Relay Function Mode Special CommentsRelay board 2 connections Page Low-Impedance/High-Impedance Earthing Electrical SpecificationsDC Input AC InputAC Output AC Input External Bypass SSWHeat dissipation Required Breaker Settings 400 V Systems Torque specificationsInput and upstream breakers Output and downstream breakers Dual Mains Installation Reference to IEC 60364-4-41 CharacteristicsSystem and Protective Earthing TN SystemsProtective 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