Jiangsu Acrel Electrical Manufacturing Co., LTD.
Jiangsu Acrel Electrical Manufacturing Co., LTD.
  • ard3m motor protect controller
  • ard3m motor protect controller
  • ard3m motor protect controller
  • ard3m motor protect controller

Acrel ARD3M Motor Protect Controller

The ARD3M intelligent motor protector (hereinafter referred to as the protector) is suitable for low-voltage motor circuits with rated voltage up to 660V and integrates protection, measurement, control, communication, operation and maintenance.Its perfect protection function ensures the safe operation of the motor, with logic programmable function, can meet a variety of control methods. Different communication modules can be selected to meet the needs of field communication.

Its perfect protection function ensures the safe operation of the motor, with logic programmable function, can meet a variety of control  methods.Different communication modules can be selected to meet the needs of field communication.

  • Accuracy

    Active energy: Class 0.5


  • Frequency

    Range: 45-65Hz


  • Auxiliary power supply

    AC/DC 85~265V


  • Pulse output

    1600-160000imp/kWh


  • Consumption

    Voltage: Power consumption <0.5VA;

    Current: Power consumption< 0.5VA;

    Auxiliary power supply:power consumption≤10VA.


  • Communication
    2 Channel Modbus RTU; Profibus DP; Profinet; Modbus Tcp; Wifi

  • Switch
    Input 10 channel; Output 6 channel

  • Analog
    2 Channel 4-20mA

Parameters of ARD3M Motor Protect Controller


Technical parametersTechnical indicators
Protector auxiliary power supplySupport two power modules, AC 220V power module (AC85-265V/DC100-300V) default, AC 380V power module (AC/DC100-415V) optional
Rated working voltage of the motorAC220V / 380V / 660V,50Hz / 60Hz
Rated operating current of the motor1 (0.1A-5000A)External current transformer
5 (0.1A-5000A)
25(6.3A-25A)
100(25A-100A)
250(63A-250A)
800(250A-800A)
Relay output contact capacityImpedance loadAC250V、10A
Switching input10 channels of passive dry contact (active DC110V, DC220V, AC220V input can be optional)
CommunicationStandard supplied2channel MODBUS RTU communication
Optional(only one can be selected)1-2 channel PROFIBUS DPV1communication、1channel PROFINET communication、Ethernet communication(MODBUS TCP protocol)
EnvironmentWorking temperature-10ºC~55ºC
Storage temperature-25ºC~70ºC
Relative humidity≤95﹪No condensation, no corrosive gas
Altitude≤2000m
Pollution levelsClass 3
Protection gradeMain body IP20, split display module IP54 (installed on the cabinet panel)
Installation categoryLevel III


Video of ARD3M Motor Protect Controller


Benefits of ARD3M Motor Protect Controller


  • Suitable for motors with rated voltage of AC380V/660V

  • Optional leakage protection

  • Input 10 channel; Output 6 channel,2 Channel 4-20mA

  • 2 Channel Modbus RTU; Profibus DP; Profinet; Modbus Tcp; Wifi, etc


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  • Tel:

    +86-18761599716

  • Address:

    No.5 Dongmeng Road, Nanzha Street, Jiangyin City, Jiangsu Province, China.