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Hot Products

HAH1DRW500-S, HAH1DRW 500-S

HOT OFFER// Authorized Distributor
  • MacroQuest Part#HAH1DRW500-S
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $21.36 - $36.86
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    Description FAQ Review
    Description

    HAH1DRW500-S Compact Current Sensor


    HAH1DRW500-S     Accurately Monitor High Currents to Protect Automotive Motor Operation

    In the rapidly evolving landscape of new energy vehicles, the stability and accuracy of motor control directly impact vehicle power performance, energy efficiency, and driving safety. The HAH1DRW500-S compact current sensor is a core detection component designed specifically for high-power applications such as automotive motor control.

    LEM, a globally renowned sensor brand, boasts deep technical expertise and an excellent industry reputation, trusted by many domestic and international automakers and industrial automation manufacturers. The HAH1DRW500-S employs advanced open-loop Hall-effect technology, featuring a simple structure with no complex mechanical parts, resulting in a low failure rate and reliable long-term operation. This sensor is specifically designed for busbar mounting, with a rated current and measuring range of 500 A. It accurately measures DC, AC, or pulsed currents, while the galvanic isolation between the primary and secondary circuits ensures excellent safety and immunity to interference.


    HAH1DRW500-S Three Key Advantages – An Outstanding Choice

    1. Fast Response, Accurate Detection

    The HAH1DRW500-S uses open-loop Hall-effect technology, eliminating the need for complex magnetic balance compensation. It directly converts the magnetic field generated by the primary current into a voltage signal, achieving a fast response time of 6 µs. It rapidly captures instantaneous current fluctuations during motor start/stop and acceleration/deceleration, providing timely and accurate current data to the electronic control unit (ECU). This significantly optimizes motor control strategies and improves operating efficiency.

    2. Stable in Extreme Environments

    Exceptional temperature tolerance, with an operating range from -40°C to +125°C. Whether in severe winter cold or a hot engine compartment after long-term operation, the sensor maintains stable measurement accuracy without signal drift caused by temperature changes. With very low thermal and sensitivity drift, it ensures reliable performance across diverse operating conditions.

    3. Easy Installation, Cost-Effective

    Designed for busbar mounting, the sensor is compact and space-saving, easily fitting into limited installation environments. It supports direct primary-side fixed mounting, requiring no complex modifications to the motor or control unit, greatly reducing system integration complexity and production costs – ideal for mass production applications.


    HAH1DRW500-S Key Specifications

    Parameter

    Value

    Brand

    LEM

    Measured Quantity

    Current

    Rated Current

    500 A

    Measuring Range

    500 A

    Secondary Output Signal

    Instantaneous voltage, 2.5 ± 2 V

    Supply Voltage

    External DC single rail, 5 V

    Accuracy

    ±2.25%

    Operating Temperature

    -40°C to +125°C

    Technology

    Open-loop Hall effect

    Mounting

    Busbar mounting


    HAH1DRW500-S Typical Applications

    Motor controllers in new energy vehicles (BEV, PHEV): Real-time monitoring of motor current magnitude and fluctuations for precise speed and torque regulation, ensuring smooth start-up, powerful acceleration, and optimized energy consumption to extend driving range.

    Key automotive electrical systems such as electric power steering (EPS) and starter-generators.

    Current feedback and control for high-power inverters and servo drives.

    High-accuracy current monitoring in battery management systems (BMS).

    Current monitoring for industrial motor drives and railway traction systems.

    FAQ
    Q
    What is the advantage of MacroQuest?
    A
    Our advantage is that we not only low prices, but we more suited to you.
    Our Keywords is
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    Q: I want to work with MacroQuest because of high quality. But I found your price too high and out of line with the prevailing market level, how should I do?
    A: MacroQuest has been devoted to offer a best price to our customers,if you want to buy it at a cheapper price. Please contact us directly to see if we can negotiate  a cheaper price rate. Or, send us an email with your T/P.
    Simon Hsu
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    Alice Wang
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    Q：Are all the parts new and original?
    -A:Yes, all parts are new and original checked by our quality control department.

    Q：How long is your warranty?
    -A:We offer a 1 year warranty for form fit and function for MacroQuest stock. 


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    Less
    Review
    Quinton
    Apr 19, 2026
    Very good quality and very fast shipping.
    Polly
    Mar 16, 2026
    Fast delivery, well packaged, nice product, recommended
    Bella
    Dec 22, 2025
    Elsa, thanks for quick response and professional job
    Faye
    Jul 23, 2025
    Good company to work with!
    Xenia
    Mar 26, 2025
    Good quality, fast delivery,
     123 
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