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Hot Products

HAH1DR900-S,HAH1DR 900-S

HOT OFFER// Authorized Distributor
  • MacroQuest Part#HAH1DR900-S
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $21.36 - $36.86
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    Description FAQ Review
    Description

    LEM HAH1DR 900-S Open-Loop Hall Effect Current Sensor

     

    LEM HAH1DR 900-S Product Overview

    The HAH1DR 900-S is a high-precision current sensor from LEM's HAH1DR 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 sensor utilizes open-loop Hall effect technology, with a rated current of 900A and a measuring range of ±900A. It outputs a ratiometric voltage signal with an accuracy of 3%, a bandwidth of 30kHz, and a response time of ≤6µs. Supply voltage is 5V DC (unipolar), and the operating temperature range is -40°C to +125°C.

    The busbar mounting design is optimized for direct copper bar installation, suitable for automotive motor control applications. The HAH1DR series offers measurement ranges from 200A to 900A in the same package, enabling flexible platform-based selection.

     

    LEM HAH1DR 900-S Key Technical Specifications

    Parameter

    Specification

    Model

    HAH1DR 900-S

    Series

    HAH1DR

    Rated Current (I_PN)

    900 A

    Measuring Range (I_PM)

    ±900 A

    Output Signal

    2.5 + G × Ip (ratiometric voltage output)

    Measurement Technology

    Open-loop Hall Effect

    Accuracy

    3 %

    Frequency Bandwidth

    0 ~ 30 kHz

    Response Time

    ≤ 6 µs

    Linearity

    ±1 %

    Supply Voltage

    4.75V ~ 5.25V (typical 5V, unipolar)

    Supply Current (Max)

    20 mA

    Operating Temperature

    -40℃ ~ +125℃

    Mounting Type

    Busbar Mounting (chassis/baseplate mount)

    Output Type

    Ratiometric voltage output

    Polarization

    Bidirectional

    Application

    Automotive Motor Control

     

    LEM HAH1DR 900-S Key Advantages

    Open-Loop Hall Technology, Non-Contact Measurement: No insertion loss, fast response (≤6µs), suitable for automotive dynamic current monitoring

    900A Rated Current: Rated 900A, measuring range ±900A — meets high-current monitoring needs for EV 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 inverters and motor controllers

    3% Accuracy: Meets accuracy requirements for automotive motor control current measurement

    Single +5V Supply: Simplifies automotive power system design, compatible with mainstream automotive electronics platforms

    30kHz Bandwidth + 6µs Response: Effectively captures high-frequency current components in automotive systems, providing timely triggering signals for overcurrent protection

    Series Selection: HAH1DR series covers multiple ranges from 200A to 900A in the same package design, flexible expansion based on application needs

     

    Why Choose the HAH1DR 900-S?

    Customer Pain Point

    HAH1DR 900-S Solution

    Need to measure 900A-class automotive high currents

    900A rated, ±900A range — meets high-power motor control 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

    Need fast response overcurrent protection

    ≤6µs fast response, timely protection triggering

    Same platform needs different current ratings

    Series covers 200A-900A, same package — flexible expansion

     

    LEM HAH1DR 900-S Target Applications

    Automotive Motor Control: EV traction motor current monitoring

    Industrial VFDs: Motor drive current feedback control

    Renewable Energy Systems: 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
    Fast Delivery
    Instock & available
    Short Leadtime
    30-Days returns
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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
    simon@mymacroquest.com
    Alice Wang
    alice@mymacroquest.com

    Q: Can MacroQuest offer NET terms?
    A: Yes we can. Please contact with your sales manager for more information.

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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. 


    Q:  Can I use Credit Card/Debit Card payment for my orders on your website?
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    Less
    Review
    Zachariah
    Mar 10, 2026
    We have bought many times from Macroquest and every time it has ran smotth.
    Naylor
    Feb 25, 2026
    Excellent product,thank you Very Fast shipping
    Adamson
    Nov 03, 2025
    Old supplier, cooperate several times.
    Henry
    Sep 06, 2025
    The logistics are quite fast. The quality is good.
    Whitlock
    Jul 02, 2025
    Great company to work with!
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