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Hot Products

HAH1DRW1200-S/SP3,HAH1DRW 1200-S/SP3

HOT OFFER// Authorized Distributor
  • MacroQuest Part#HAH1DRW1200-S/SP3
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $21.36 - $36.86
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    Description FAQ Review
    Description

    LEM HAH1DRW 1200-S/SP3 Open-Loop Hall Effect Current Sensor

     

    LEM HAH1DRW 1200-S/SP3 Product Overview

    The HAH1DRW 1200-S/SP3 is a high-precision current sensor from LEM's HAH1DRW series, based on open-loop Hall effect technology. It is designed for electronic measurement of DC, AC, and pulsed currents, with galvanic isolation between the primary and secondary circuits.

    The key advantage of this model is its redundant/dual range design, featuring two independent output channels (high-range and low-range) to provide measurement redundancy for automotive safety-critical applications. The sensor has a rated current of 1200A and a measuring range of ±1200A. It outputs a ratiometric voltage signal (instantaneous 2.5V ± 2V) with an accuracy of 2.25% and an operating temperature range of -40°C to +125°C.

    The SP3 suffix is a specific configuration version for this model. The busbar mounting design is optimized for direct copper bar installation, suitable for automotive Battery Management Systems (BMS) and high-power motor control applications.

     

    Key Technical Specifications

    Parameter

    Specification

    Model

    HAH1DRW 1200-S/SP3

    Series

    HAH1DRW

    Rated Current (I_PN)

    1200 A

    Measuring Range (I_PM)

    ±1200 A

    Output Signal

    Ratiometric voltage output (instantaneous 2.5V ± 2V)

    Measurement Technology

    Open-loop Hall Effect

    Accuracy

    2.25 %

    Supply Voltage

    4.75V ~ 5.25V (typical 5V)

    Operating Temperature

    -40℃ ~ +125℃

    Mounting Type

    Busbar Mounting

    Output Type

    Redundant/Dual range (high/low range dual outputs)

    Application

    Automotive Battery Management (BMS), High-Power Motor Control

    Part Status

    Active

     

    Key Advantages

    Redundant/Dual Range Output, High Safety: Built-in high-range and low-range independent output channels provide measurement redundancy, ideal for automotive safety-critical battery management and motor control systems

    1200A Ultra-High Current Measurement Capability: Rated 1200A, measuring range ±1200A — meets high-current monitoring needs for EV BMS, traction motor control, and more

    -40°C to +125°C Ultra-Wide Operating Temperature: Automotive-grade wide temperature design, adapts to extreme environmental temperature variations, ensuring stable operation under harsh conditions

    Busbar Mounting Design, Compact Structure: Optimized for direct copper bar installation, easy to integrate into battery packs, inverters, and motor controllers

    2.25% High Accuracy: Meets strict accuracy requirements for automotive battery management current measurement

    Single +5V Supply: Simplifies automotive power system design, compatible with mainstream automotive electronics platformsOpen-Loop Hall Technology, High Cost-Effectiveness: Non-contact measurement, no insertion loss, suitable for dynamic current monitoring

     

    Why Choose the HAH1DRW 1200-S/SP3?

    Customer Pain Point

    HAH1DRW 1200-S/SP3 Solution

    Automotive BMS requires redundant current measurement for functional safety

    Dual range/redundant output — two independent signals as backup

    Need to measure 1200A-class ultra-high currents

    1200A rated, ±1200A range — meets high-power application needs

    Wide temperature variations in automotive environments cause accuracy drift

    -40°C~+125°C wide temperature design, automotive-grade reliability

    Limited installation space

    Busbar mounting design, compact structure

     

    Target Applications

    Automotive Battery Management Systems (BMS): Battery pack charge/discharge current monitoring, SOC/SOH calculation

    Automotive Motor Control: EV traction motor, Electric Power Steering (EPS) current monitoring

    Industrial VFDs: High-power motor drive current feedback control

    Renewable Energy Systems: Large-scale PV inverters, energy storage systems

    High-Power UPS: Uninterruptible power supply input/output monitoring

     

    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
    New and original parts
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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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    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
    Harrison
    Mar 11, 2026
    The quality is good, shipping is rather fast
    Webb
    Feb 13, 2026
    Very satisfied, the quality is very good.
    Reese
    Dec 23, 2025
    Hope we can have more Excellent cooperations in the near future.
    Talina
    Oct 24, 2025
    Fast delivery, well packaged, nice product, recommended
    Valorie
    Oct 15, 2025
    Friendly contact, Thanks
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