Toshiba 431A operation manual Grounding Wire, Example UPS Ground Bus

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8.4Grounding Wire

WARNING

Be sure to ground the UPS and ancillary cabinets as specified.

Using the UPS and ancillary cabinets without a proper ground will deteriorate the insulation, cause leakage of currents and electric shock. The resistance to ground should be 10 ohms or less.

The earth grounding bus for 431A and 431B are located inside, at the bottom-left front of each cabinet.

The earth grounding bus for 431M is located on the right side wall just above the inter-cabinet access port.

Use a AWG 2 (or 38 mm2) or larger cable for the grounding wire. Run the grounding wire through the opening at the bottom, through a hole in the top knockout plate or through the side access hole. Connect the grounding wire to the earth ground bus.

The ground wire must have a crimp terminal with a 3/16 in. (4.76 mm) diameter screw hole. The ground bus has twelve (12) 0.163 in. (4.1 mm) holes tapped for a 10/32 screw. Connect the crimp terminal and ground bus together using a 10/32 screw.

Figure 8-4 - Example: UPS Ground Bus

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4300 Series Ancillary Cabinets Installation and Operation Manual

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Contents Series Ancillary Cabinets Page Series Product Use and Warranty Restrictions Qualified Personnel onlyUninterruptible Power System UPS Purpose Toshiba Customer Support CenterToshiba Customer Support Center Toshiba International CorporationContents Toshiba Battery Cabinet w/ HX-205 431Bx000xxER111 11 431B Toshiba Battery Cabinet431M MBS Cabinet Installation Guide Introduction Symbols General Safety InstructionsProhibited Symbol indicates do not take action Signal Words Qualified PersonnelMaximum Operating Temperatures Important Safety InstructionsFactory Authorized Personnel Battery Safety Instructions Importantes Concernant LA SécuritéSafety Precautions General MaintenanceKeep the area around the UPS clean DisclaimerTransporting Avoid vibration or shock exceeding 0.5 gTransporting By Forklift Transporting by ForkliftInspection/Storage Install the ancillary cabinet in a controlled environment Installation PrecautionsKeep the Specified Clearance around the UPS Metal Conduit is not AN Acceptable Ground Conductor Routing and GroundingWiring/Connection Perform wiring and connections with correct polarityConnect only one 1 ground wire to the earth ground terminal Follow the torque criteria for tightening screwsPage Storage/Operating Environment Operating PrecautionsStorage Environment Page Qualified Personnel only Maintenance PrecautionsQualified Personnel shall Installation Keep the Specified Clearance around the ancillary cabinetsUnpacking UPS ClearanceAnchor Bolts 431A/431B 431MGrounding Wire Example UPS Ground Bus4300 Series System Assembly Series Overview4300 UPS 431B Batt. Cabinet Optional10 431A Toshiba Auxiliary Cabinet 431A431A Assembled All cabinets are O’Brien Black TexturedAlternative Configurations Auxiliary Cabinet Warning LabelsBolt Tightening Specifications Torque 431A with the 4300 UPS431A with 431M and 4300 UPS Compression Fittings431A Input/Output Power Cable Sizes OutputAnchor the 431A Cabinet 431A Base Anchor Points431A Join the Auxiliary Cabinet with the UPSSeries UPS 431M Join the 431A Cabinet with the 431MSeries Toshiba Auxiliary Cabinet Outline Drawing 431B Door Closed 11 431B Toshiba Battery Cabinet431B Door Open 11.1 431B Estimated Runtimes 40308 4175043784 480824431B and 4300 UPS Go to Section Place the 431B Cabinet 431B Power Cable Sizes Place the 431B CabinetJoin the Battery Cabinet with the UPS 431B Cable Access PlateComponent Wire the Battery Cabinet to the UPSSeries UPS 431B 11.7 431B Backup Runtime Tables 431B Factory Supplied Shunt Trip WiringToshiba Battery Cabinet Outline Drawing 431B300017ER111, 4318500008ER111 Toshiba Battery Cabinet w/ HX-205 431Bx000xxER11112 431B Door Closed 431B Door Open Battery Cabinet Mccb Detail 12.1 431B Estimated Runtimes69883 41750 Installation Safety Instruction Recommended/Maximum Wire size and Torque Requirement Battery CabSizes Lug Tightening Torque 127 Adc 150 aJoin the Battery Cabinet with the UPS Wire the Battery Cabinet to the UPS 12.7 431Bx000xxER111 Backup Runtime Tables 431B Typical Runtimes versus LoadToshiba Battery Cabinet HX-205 Schematic 10 Toshiba Battery Cabinet Outline Drawing 13.1 431M Maintenance Bypass Switch MBS Options 13 431M MBS Cabinet Installation Guide431M Door Closed 431M Door Open 431M Internal Arrangement 431M Cabinet Warning Labels Qualified Personnel only 431M Input/Output Power Cable Sizes 431M with 431A and 4300 UPSSuggested Nema 2-Hole Compression Fittings Locations/Dimension on UPS Base Upper Attach Points similar Place the 431M CabinetJoin the 431M Cabinet with the UPS PCB MBS Operation MBS Mechanical Interlock Plate Operation431M Cabinet Outline Drawing 14 431A MBS/PDU Distribution Purpose4400 MBS/PDU with Front Panels Installed Loto Lock-Out Tag-Out HaspOptional Kickplate Installation Box ContentsInstalling 4310-30/50-KP-A Tools RequiredSlide Side Plates in along C-Channel base Align the F/B Plate with the UPS frontInsert Side Plate tabs into F/B Plate slots Attach the rear F/B Plate to the back of the UPSCompletion Installing 4310-30/50-KP-B Install the F/B PlatesMove Side Plates to outer-most Channel base Side Kick Plate Plate F/B Kick Plates Back Side SimilarDimensional Data External Layouts/DimensionsElectrical Conduit Knock-out Data Page Page Industrial Division