Input junction box dimensions | Emerson Static Transfer Switch

Power and Control Wiring

For preparation purposes, the following tables provide the dimensions and wire sizes for the input junction boxes.

Table 3	Input junction box dimensions

		Length	Width	Height
Switch Rating		Inches (mm)	Inches (mm)	Inches (mm)
100 amp		16 (406)	14 (356)	6 (152)

250 to 600 amp		30 (762)	16 (406)	6 (152)

Table 4	Input junction box terminal wire size range

Switch Rating		Power and Ground Lug Wire Range

	100 amp	#6 to #2/0 AWG

250 to 600 amp		(2) #6 AWG to (2) 500 kcmil

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Emerson Static Transfer Switch user manual Input junction box dimensions, Input junction box terminal wire size range

Contents

Liebert Static Transfer Switch Page Table of Contents Theory of Operation Alarm and Faults Communication Interfaces SpecificationsLiebert STS2 Touch Screen Display System Components Event Message Help Text Maintenance Figures Tables Important Safety Instructions Overview of Manual Safety Precautions Unloading and Handling External InspectionsUnpacking and Inspections Handling Considerations Internal InspectionsUnit Preparation Location Considerations Recommended Minimum Service ClearancesHeat Output Operating Environment Recommended derating for high altitude operation Altitude Locating the Liebert STS2 Leveling of the Static Switch Without AnchoringLeveling and Anchoring the Static Switch Using Floor Stand Leveling and Anchoring the Unit to the Floor Power and Control Wiring Input And Output Power Connections Input/output conduit plate specifications Input Junction Box Installation-OptionalRating Max. number and size Switch Rating Power and Ground Lug Wire Range Input junction box dimensionsInput junction box terminal wire size range Length Width Height Switch Rating Inches mm CB1 STS1 STS2 CB2 Control Wiring ConnectionsSystem Grounding Source MICB1 MICB2 Isolation Transformer Contact Connection Remote Source Selection WiringPower Supply Remote source selection terminal block Programmable relay board pinout Programmable Relay BoardOptimized Transfer Options Comms Board Input Contact Isolator BoardLiebert IntelliSlot Web/485 Card With Adapter Redundant Output Breaker Key Lockout SwitchLED Display Remote Source Selection Seismic Floor Anchors Input Junction Boxes and CablesSeismic Floor Stand Outline drawing 100 250 amp Liebert STS2 Installation Drawings Rev Outline drawing 800 1000 amp Liebert STS2 PS211101 Rev PS211401 PS211801 Seismic anchor Seismic anchor drawing 400 600 amp Liebert STS2 System Seismic ANCHORING, Figure Front Drawing 100 250 amp Liebert STS2 with single output breaker Electrical field connections Rev Ground BUS INPUT/OUTPUT BUS Front View Right Side View Drawing 400 600 amp Liebert STS2 with single output breaker PS212401 Drawing 800 1000 amp Liebert STS2 with single output Breaker PS212801 Liebert STS2 non-automatic circuit breaker schedule See Option Location Detail Control connection location diagram 100 600 amp Liebert STS2 Front View with Front Door Removed Option Location Detail Control Wiring See Note J74 J71J72 J73 Table J51 Control wiring for the input contact isolator board option 02-810015-XX DB-9J3 TB3 TB3 TXD RXD GND Control wiring for the RS-232 port Input Junction BOX ColorLCD Load touch screendisplay Mimic Description Symbol Installation drawing, seismic floor stand 100-250A Stand Installation PS215002 Rev PS215003 Rev Height Table Hardware Torque Chart PS216001 Rev PS216002 Rev PS216003 Rev Installation drawing, seismic floor stand 800-1000A Drawing 800 Right Side View Front Right Isometric View Rear Right Isometric ViewDetail a View Side ViewRight Front View Introduction to Liebert STS2 Operations System DescriptionRedundancy Modes of Operation Bypass Operator Controls Theory of Operation General Description Detailed Component Description SCRs HardwareFirmware Circuit Breakers Logic Modules Audible Alarm6 RS-232 Port Operating Instructions for the Touch Screen Interface Normal System Turn-On Manual Transfer / Preferred Source Selection Settings on Enabling Remote Source Selection Maintenance BypassTo manually select the preferred source Touch Screen Viewing Slot for the Source 1 Gate Drive Board Viewing Slot for the Source 2 Gate Drive Board To bypass the switch for Source Bypass Procedures for SourceTo return to the normal mode Normal System Shutdown Shutdown in Static Transfer Switch ModeShutdown in Maintenance Bypass Mode To return to normal mode Event Mask Alarm and Faults Event Log Event and History LogsHistory Log List of Messages Alarm Notes Event messages Alarm Message Description/Cause Action See Configuring the Input Contact Isolator Settings on Communication Interfaces Using the RS-232 Port Terminal commands Connecting and Using a TerminalKeys Function UPMDR? Configuring the Liebert STS2 via the TerminalGroups Parameter Item Parameter Value Parameter Group settings and valuesValue types Event Mask User Options1 Setting Bitpacked Options with the TerminalComms Options Hex Critical Option EnablingNon-Critical Option Enabling Binary-hexadecimal conversions Setting Event Masks with the Terminal Putting the Terminal Command Together Examples of Event Mask Settings Liebert STS2 Touch Screen Display Display Overview Backspace Menu Overview Changes disabled Changes enabled Using the Optional Key Lockout SwitchUsing the Password To set or reset the password Menu bar Mimic DisplayEvent Controls Event Display To access the User Settings dialog box User SettingsTo set the event masks Source Set Points User settings dialog box Button Range Default Comments To configure the setpoints for each sourceSepoint parameters Liebert STS2 Touch Screen Display Option buttons System SettingsTo access the System Settings menu Comm Options To configure the modem Configuring the Modem Configuring the Input Contact Isolator Settings Configuring Pager Support Input contact isolator dialog box To configure the Input Contact Isolator relays Standard settings for programmable relays Configuring the Programmable Relay Board SettingsRelay Setting Definition Programmable relay board dialog box Dual Output Breaker Liebert SiteScan ConfigurationSaving Your Communications Configurations System Options Remote Source Selection Pole Transfer SwitchShunt Wye Output Transformer To use the Event Log Logs Cleaning the LCD Touch Screen Operating the Liebert STS2 LED Display LEDs and Buttons and Key Lockout SwitchFront Panel Controls Cause. See 12.0 Communication Interfaces for PC terminal LED and Push Button DescriptionLED and push button description Description Action Normal System Turn On Key Lockout SwitchOperations Event Controls Manual Transfer / Preferred Source Selection 107 If transfer to Source 2 is not desired Maintenance Bypass If transfer to Source 1 is not desired Normal System Shutdown When the Static Transfer Switch is operating on bypass Input/Output Voltage System ConfigurationSpecifications Frequency Response Time GroundingElectrical Requirements Input Surge Suppression Cooling System ComponentsFrame and Enclosure Casters, Leveling and Seismic Anchoring Color Graphical Display or LED Display AccessCable Entrance Doors MTA plug pinout Pin Signal Name Function / Comments15.2.9 RS-232 Port Terminal Port Connections Fuseless Design RS-232 settingsParameter Setting 15.2.11 RS-232 Interface Parameters S1 SCR Open Event Message Help TextS1 SCR Short S2 SCR Short S2 SCR Open 119 120 S2 Volt Sense Fail S1 Volt Sense FailS1 SCR Sense Fail S1 Gate Drive Fail S2 SCR Sense FailS1 Curr Sense Fail S2 Curr Sense Fail S2 Gate Drive Fail Heat Sink Overtemp S1 UV RMS S1 UVS1 OV S1 Fail S1 OF/UFS2 UV S2 OV S2 UV RMSS2 UF/OF S2 Fail S2 I-PEAK S1 I-PEAK 130 CB5 S1 BYP Closed 132 133 134 135 136 137 Changing the Air Filter Testing the Liebert STS2Maintenance Proper Tightening of Nuts and Bolts Support Information Channel Programmable Relay Board Settings Record Channel PRB Notes Input Contact Isolator Settings Record Page That Ne tIti Ti n