American Power Conversion MX28B1200, MX28B2400+27V manual Battery connections, +24V DC Distribution

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MX28B-1200+27V PRODUCT MANUAL

4.7 Battery connections

Battery connections are made at the top rear of the unit. The +24V and Battery Return buses each provide two sets of 3/8”-16 holes on 1 inch or 1 ¾ inch centers for connecting two-hole battery cable lugs. Refer to Figure 4-4.

A battery disconnect breaker is required external to this equipment. The power plant can monitor auxiliary contacts from this breaker. Battery temperature compensation is available. APC’s master control unit, in conjunction with the optional temperature monitor sensor cable, is used to implement this function.

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Figure 4.4 Battery Connections

4.8 +24V DC Distribution

A standard power distribution module can mount up to 38 plug-in circuit breakers providing +24V power for customer loads. Each breaker row is connected at its center to the +24V DC bus, with each column having an ampacity of 300A. Connections for the +24V DC loads are located directly above the corresponding breaker. A typical load connection would utilize a #6 AWG wire with a two-hole lug on 5/8-inch centers, attached with standard #10-32 mounting screws.

The load return cables for each circuit breaker connect to a return bus directly above the top row of circuit breakers. The return bus contains a pattern for 40 two-hole #10-32 lugs on 5/8-inch centers. Figure 4-5 shows the power plant’s DC distribution section.

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Contents Model MX28B1200/2400+27V LVD Options +24V Battery Temperature ProbeDescription Part Number DC Distribution Options +24VInitial release Revision Date Description 09/12/2001Table of Contents SETUP, ADJUSTMENTS, and Operation Page General PrecautionsIntroduction Inspection upon Receipt of GoodsReturn of Damaged Goods Concealed DamageWarranty Returns Warranty Repair or ReplacementGeneral Provisions Exclusions and Limitations MX28B-1200/2400+27V DescriptionMX28B1200/2400+27V System Diagram Power Output Capacity RectifiersConverters Control Unit AC Input Power+24V DC Distribution Battery connectionsDC Distribution 48 V DC Distribution from Converters OptionalEnvironmental MechanicalCompliance Recommended Test Equipment Safety PrecautionsPreparation Recommended ToolsMounting Room/LocationsVentilation AC Service and Ground ConnectionsBattery Disconnect Cable Sizing Considerations Connecting the CablesConverter Installation Rectifier InstallationAlarm Interface PC Board Alarm ConnectionsAlarm Outputs External Alarm InputsDC Circuit Breakers Connecting The Loads2.2 -48V Circuit Breaker Load Connections Installation of Circuit BreakersPower-Up and Checkout Battery Temperature Probe InstallationSystem Parameters Verification/Adjustment Apply AC PowerFull System Power Up User Interface SETUP, ADJUSTMENTS, and OperationExternal Alarm Inputs Alarm Output RelaysSnmp Interface Parameter Locations, Descriptions, and Default Values Alarms StatusSystem SET-ALM Alias Setup PINDate OUT-RLY RLY-MAPInfo DiagModules Rect SET-ALM ParamFuse SET-ALM Cirbkr SET-ALMAlias Fuse LVD SET-ALM Batt SET-ALMComp PIN OEM Rev MX28B-1200+27V Product ManualParameter Description Display Screens Default Settings Conv LV Alm 40.0 C OFFBatt Disc Alm m+ Conv Fail Safem+ Cir Bkr 1 Alm m+ Out-Rly LVD2 LVD1

MX28B2400+27V, MX28B1200 specifications

The American Power Conversion (APC) MX28B1200 and MX28B2400+27V are advanced power management solutions designed to deliver superior reliability and performance for critical applications. These models are an integral part of APC’s extensive range of uninterruptible power supplies (UPS), catering specifically to high-performance environments such as data centers, server rooms, and industrial systems.

One of the standout features of the MX28 models is their robust power output capability. The MX28B1200 offers a 1200VA power rating, while the MX28B2400+27V boasts a substantial 2400VA rating. This impressive output ensures that connected equipment remains operational during power outages, providing essential backup support and minimizing downtime.

Another key characteristic is their advanced battery management technology, which incorporates intelligent charging systems to extend battery life and improve overall efficiency. This technology helps optimize the charging process, ensuring that the batteries are always in top condition and ready to supply power when needed.

The MX28B series also integrates smart LCD displays that provide real-time information on power conditions, battery status, and system performance. This user-friendly interface allows administrators to monitor the UPS at a glance, facilitating easier management and quicker response times in case of any issues.

In addition to reliable power delivery, the MX28 models emphasize scalability and flexibility. They are designed to support a variety of configurations and are compatible with a range of external battery packs. This ability to adapt means businesses can expand their power capabilities without overhauling their existing systems.

Furthermore, the MX28B series includes advanced protection features against power surges, voltage fluctuations, and other electrical disturbances. This ensures the safety of connected devices, safeguarding against potential damages and enhancing the overall integrity of critical operations.

The design of the APC MX28 models prioritizes efficiency, compliance with global energy standards, and reduced operational costs. This focus on efficiency not only leads to savings but also aligns with sustainable practices, making them an ideal choice for environmentally conscious organizations.

Overall, the APC MX28B1200 and MX28B2400+27V represent a significant advancement in UPS technology, combining power reliability, intelligent management, and environmentally friendly design to support a wide array of demanding applications across various industries.
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