American Power Conversion MX28B200 user manual Installation of Circuit Breakers and Fuses

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3.7. Installation of Circuit Breakers and Fuses

Plug-in Circuit Breaker Installation

CAUTION During circuit breaker installation, carefully align the breaker alarm terminals with the alarm terminal board to avoid breaker terminal damage.

1)Remove the circuit breaker cover panel and the plastic cover(s) from the desired location(s).

2)Install the circuit breaker(s) by snapping the top terminal onto the upper bus bar and rotating the unit down until the second terminal snaps onto the breaker termination post as shown in Figure 3.7-1The breaker alarm terminals are designed to make contact with the alarm terminal board as the breaker is snapped into place.

3)Reattach the circuit breaker cover panel.

NOTE: Circuit breaker alarm contacts close when the circuit breaker is tripped but not when it is turned OFF.

Figure 3.7-1. Installation of Circuit Breakers

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MX28B200/400 –48 VDC User’s Manual (990-9133)

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Contents VDC Power Systems Page Table of Contents Remote Monitoring Revision History Revision Date DescriptionPage Safety First General PrecautionsPage Introduction General Information2 MX28B Block Diagram How to Use This Manual Page Installation Mechanical InstallationUnpacking Equipment Room / LocationAC Power Connections VentilationConnecting the Cables Battery ConnectionsPlanning the Battery installation Battery Temperature Probe Installation DC System GroundingDC Power Output Over-Current Protection DC Circuit Breakers#10 studs on 5/8 centers DC GMT Fuses Fuse Rating Part NumberInstallation of Circuit Breakers and Fuses Plug-in Circuit Breaker InstallationGMT Fuse Installation Load ConnectionsCable Size Considerations Circuit Breaker Connections 1 to 50 AmpsCircuit Breaker Connections 60-100 Amps 1 Standard lug for 1 to 50A breakersGMT Fuse Connections 2 Adaptor and lugs for 60-100 Amp breakersRJ45 Ethernet Connector Monitoring and Relay Output ConnectionsFront Panel DB9 Connection Smart Cable DB9 ConnectionExternal Alarm Input Connections NO-NC-CRectifier Module Installation Initial Power-Up and CheckoutSystem Parameters Verification/Adjustment Full System Power Up Rectifier Management OperationTechnical Description System Management System Output CapacitySystem Voltage Control System CurrentBattery Management System Status and Alarm ReportingBattery Charging and Protection DC DistributionControls and Indicators Battery Temperature CompensationBattery/Load Low Voltage Disconnect Front Panel User InterfaceMX28B Status Alarms System Modules Batt PIN OEM Parameter Locations, Descriptions, and Default Values Batt Disc Alm m+ MinorBatt Disc Thr m+ 10 aCir Bkr 48VCir Bkr 1 Alm m+ MajorFW Version 000189GMT 1 Alm GMT 8 AlmEnable LVD ResetIn-Rly 1 Alm IgnoreOEM S Offset Out-Rly 1 Alm m+Out-Rly 6 Alm m+ Out-RlyRectFailComm MinRect Cfg Alm Rect CL AlmDisable Rect 1 FFRect 1 RFA Rect RFA AlmSys LT Thr Sys LV AlmSys LV Thr 50.00SYS MS System Module SET-ALM Setup DA Control Unit Menu StructureV e l C o n d L e v e l I r d L e v e l U r t h L e v e l SYS Sysin AM Info Modgmt LM Alias GMT MOD Modlvd Front Panel LED Indicators Alarm Outputs Output Relays External Alarm Inputs Input RelaysPage Command and Monitoring Protocol Remote MonitoringDescription Physical ConnectionsPage Specifications AC Input1MRF28H54BV Rectifiers 1MRF28H54BV50 RectifiersRectifiers PscuPower Shelf Control Unit MechanicalMounting Environmental CompliancePage APC Worldwide Customer Support Page Warranty General Provisions