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AC380V/690V Leakage Protection Motor Protector with Event Recording Function

Event recording

leakage protection

AC380V/690V

programmable DI and DO

Analog output

Anti-shaking function

+86-18702106858 / +86-21-69156352

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  • Describe
  • The Acrel ARD3M is a comprehensive motor protection controller designed for low-voltage motors with rated voltages up to AC380V/690V. It features event recording, leakage protection, and programmable DI/DO for flexible control. The device supports anti-shaking functionality to ensure stable operation and includes analog output for monitoring purposes. With its robust protection mechanisms and versatile communication options, the ARD3M is ideal for various industrial applications, ensuring reliable motor management and efficient system integration.

  • Specifications
  • Technical parameters Technical indicators
    Protector auxiliary power supply AC85-265V/DC100-350V
    Rated working voltage of the motor AC220V / 380V, 50Hz / 60Hz
    Rated operating current of the motor 1 (0.1A-5000A) Integrated/Split current transformer
    5 (0.1A-5000A)
    25(6.3A-25A)
    100(25A-100A)
    250(63A-250A) Split current transformer
    800(250A-800A)
    Relay output contact capacity Impedance load AC250V、10A
    Switching input 8 channels of passive dry contact (active DC110V, DC220V, AC220V input can be optional)
    Communication RS485 Modbus_RTU, Profibus_DP
    Environment Working temperature -10ºC~55ºC
    Storage temperature -25ºC~70ºC
    Relative humidity ≤95﹪No condensation, no corrosive gas
    Altitude ≤2000m
    Pollution levels Class 3
    Protection grade Main body IP20, split display module IP54 (installed on the cabinet panel)
    Installation category Level III
  • Dimension & Wiring Diagram
  • Application Scenario
About Acrel
"Optimized Energy Efficiency, Empower Green Future."

Founded in 2003, Acrel Co., Ltd.【Stock Code: 300286.SZ】 is a high-tech enterprise specializing in energy management solutions and electrical safety. Headquartered in Shanghai, Acrel offers innovative and sustainable solutions for microgrid energy efficiency and electrical safety. With over 600 patents and software copyrights, Acrel has deployed more than 28,000 system solutions globally, forming a comprehensive "cloud-edge-end" energy internet architecture.

Acrel's integrated product ecosystem spans from cloud platform software to end-user components, covering sectors such as power, renewable energy, data centers, smart buildings, transportation, and smart cities. These solutions enable intelligent, real-time energy management, enhancing energy security and reducing operational costs.

The company's production facility, Jiangsu Acrel Electric Manufacturing Co., Ltd., adheres to strict quality standards and environmental guidelines, with advanced testing centers and a commitment to lead-free production processes. Acrel's team of over 500 engineers delivers cutting-edge energy efficiency systems and smart energy solutions.

With a strong domestic presence, Acrel is actively expanding internationally, supported by a global network of sales and technical teams and an e-commerce platform that ensures seamless service experiences worldwide. Acrel is proud to help businesses improve efficiency, reduce consumption, and achieve sustainability goals.

Together, we are building a smarter, greener future.

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