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AIM-D500-CA DC Din Rail Insulation Monitoring Device IMD with IEC61557-8

IEC61557-8

Resistance monitoring

Overvoltage and undervoltage alarm

Warning and alarm

LED indication/LCD display

3 channels relay output

Event record

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  • Describe
  • AIM-D500-CA DC insulation monitor is designed for 0-1000V DC systems. It ensures power supply safety by continuously monitoring insulation resistance in IT systems. It warns of potential issues when insulation resistance falls below set values, making it ideal for applications like power plants, substations, EV chargers, UPS, and solar systems.

     

  • Specifications
  • Technical Parameter Technical Specifications
    Auxiliary power 85-305VAC/100-430VDC
    Maximum power consumption 5W
    IT system being monitored Nominal system voltage with ACPD300, Un DC 0…1000V
    Nominal system voltage without ACPD300, Un DC 0…400V
    Tolerance 20%
    Response values Response value (Insulation prewarning) Insulation alarm limit value2MΩ
    Response value (Insulation alarm) 1kΩ…2MΩ
    Relative uncertainty ±15%,±2kΩ
    Undervoltage detection (80%~100%) Un(off)
    Overvoltage detection (100%~120%) Un(off)
    accuracy 1%,±1V
    System voltage Measuring range 0V1200V
    Relative uncertainty 1%,±1V
    Internal DC impedance 1
    CCS and CHAdeMO 3.0 mode Permissible system leakage capacitance ≤20μF
    Measuring and display range of insulation resistance 1kΩ…2MΩ
    Measurement uncertainty / Relative uncertainty
    Ce≤5μF ±15%,±2 kΩ
    Ce>5μF and RF>100 kΩ ±15%
    Ran = 2.0X RF and Ce =1μf ≤10s
    acc. to IEC 61557-8
    Display Password 0000…9999(0001)
    Display LCD,128x64 dot matrix
    Time response Start-up delay 0…10s(0s)
    Response time 0…99s(0s)*
    Delay on release 0…99s(0s)*
    Interface Interface / protocol RS485/Modbus-RTU
    Baud rate 4800,9600,115200,19200,38400bps(115200bps)
    Cable length(9600bps) ≤1200m
    Cable: twisted pairs Min. J(St)Y 2x0.75
    Terminating resistor 120Ω (0.25W), external, can be connected
    Device address 1…30 (1)
    Switching elements Switching elements 2 x 1 n/o contact
    Operating principle n/c, n/o operation(n/o)
    Electrical endurance ender rated operating condition 20,000,000 cycles
    Contact data Rated operational voltage AC 250V, DC 30V
    Rate operational current AC 250V,3A, DC 30V,5A
    Environment Operating temperature -10℃ ~ +55℃
    Storage temperature -20℃ ~ +70℃
    Humidity ≤95%RH, no condensation and corrosive gas
    Altitude ≤2000m
    Other Operating mode Continuous operation
    Degree of protection internal components IP30
    Degree of protection terminals IP20
    Pollution degree III
    Installation DIN rail mounting
    weight 244.3g

  • 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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