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ABB REM543CG212AAAA Motor Protection Relay

ABB REM543CG212AAAA Motor Protection Relay

ABB REM543CG212AAAA Motor Protection Relay

  • Item NO.:

    REM543CG212AAAA
  • Payment:

    T/T
  • Price:

    $545
  • Product Origin:

    Germany
  • Color:

    NEW
  • Goods stock:

    2
  • Product weight:

    1.18KG
  • Lead Time:

    in stock

We will arrange delivery within 3-5 days after receiving the payment.

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      1.  
        ABB REM543CG212AAAA Numerical Motor & Generator Protection Relay

        Overview

        It belongs to ABB Relion REM543 series rotating machine protection terminal, a multi-functional numerical comprehensive protection device for medium-voltage asynchronous/synchronous motors and small-medium generators. The full code CG212AAAA defines hardware I/O configuration, communication interface, power supply and functional options. This model has been discontinued by ABB after 2022, widely used as main protection for MV motors and generator-transformer units in power plants, mines and metallurgy.

        Core Specifications

        1. Power Supply
           
          Wide range auxiliary power: 24–250 VDC / 48–250 VAC
        2. Measurement Inputs
           
          Dual 3-phase CT current input; optional 3-phase VT voltage input; supports RTD temperature monitoring via expansion module
        3. Applicable Equipment Voltage
           
          Matches medium voltage motors/generators up to 690V
        4. Human-Machine Interface
           
          Built-in large graphic LCD display, local operation buttons for parameter setting, fault query and breaker control
        5. Communication Interfaces
           
          SPA, LON optical bus, RS485; supports IEC 61850 Ethernet for substation DCS system docking
        6. Installation & Environment
           
          Standard cabinet panel mounting; operating temperature -20℃ ~ +70℃; complete self-diagnosis function (IRF internal fault alarm)

        Full Protection Functions (Motor Focus)

        • Thermal overload inverse-time protection
        • Stall protection, long startup supervision, startup count monitoring
        • Three-phase current unbalance, phase loss, single-phase operation protection
        • Non-directional/directional earth fault, short-circuit overcurrent multi-stage protection
        • Overvoltage, undervoltage, abnormal frequency protection
        • Optional differential protection for large important motors
        • Trip circuit supervision, winding/bearing temperature overheat alarm via RTD

        Key Features

        1. All-in-one integration: protection + electrical measurement + local/remote breaker control + condition monitoring + communication
        2. Built-in programmable logic (PLC function blocks) to reduce external intermediate relays and simplify cabinet wiring
        3. Optical isolation communication, strong anti-interference for high-voltage substation environments
        4. Complete fault recording, disturbance waveform storage for post-fault analysis
        5. Support local manual control and remote interlock control via upper monitoring system
        6. Marine & offshore certified, suitable for heavy industrial harsh working conditions

        Applications

        Main comprehensive protection for medium-voltage large fans, water pumps, ball mills, crushers in thermal power, hydropower, metallurgy, cement and mining; also serves as primary protection for small/medium diesel and hydro generators.
         
         
         

The structure and details of the product:

 

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