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Hot Products

HTR 400-SB , HTR400-SB

HOT OFFER// Authorized Distributor
  • MacroQuest Part#HTR 400-SB
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $91.72 - $121.11
    / Pieces
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    Pieces(Min. Order)
    1-9 Pieces $121.11
    10-99 Pieces $102.85
    >=100 Pieces $91.72
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    Description FAQ Review
    Description

    LEM HTR 400-SB HTR Series Split Core Open Loop Hall Effect Current Transducer

     

    LEM HTR 400-SB Product Overview

    The HTR 400-SB is an open-loop Hall effect current transducer from LEM's HTR Series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits. This split-core transducer features a 21 mm diameter aperture for easy installation without disconnecting existing cables.

    Rated for 400 A nominal with a measuring range of ±800 A , it outputs an instantaneous voltage signal of ±4 V with ±2% accuracy and ±1% linearity. Response time is 10 µs and frequency bandwidth (-1 dB) is DC to 10 kHz. Supply voltage range is ±12 V to ±15 V (±5%) with a maximum current consumption of 20 mA . Mass is approximately 80 g and operating temperature ranges from -10°C to +70°C . The insulating plastic case is recognized according to UL 94-V0. Connection is via Molex 5045-04/AG connector.

     

    LEM HTR 400-SB Key Specifications

    Parameter

    Value

    Rated current (IPN)

    400 A

    Measuring range (IPM)

    ±800 A

    Output signal

    ±4 V (instantaneous voltage)

    Supply voltage (VC)

    ±12 V to ±15 V (±5%)

    Accuracy (X)

    ±2 %

    Linearity (εL)

    ±1 %

    Response time (tr)

    10 µs

    Bandwidth (BW)

    DC to 10 kHz (-1 dB)

    Aperture

    21 mm diameter

    Operating temp (TA)

    -10°C to +70°C

    Mass (m)

    80 g

    Mounting

    Panel

    Technology

    Open-loop Hall effect

    Connector

    Molex 5045-04/AG

     

    LEM HTR 400-SB Key Advantages

    The HTR 400-SB employs open-loop Hall effect technology, delivering ±2% accuracy and ±1% linearity while providing galvanic isolation between primary and secondary circuits. The split-core design with 21 mm aperture enables fast, non-intrusive installation without disconnecting existing cables, making it ideal for retrofit applications. The ±800 A measuring range accommodates overloads up to twice the nominal current. The compact panel-mount design offers low power consumption (20 mA), through-hole design with no insertion losses, and easy mounting via the Molex connector.

     

    LEM HTR 400-SB Typical Applications

    Drives and motor control systems
    Power supplies
    Renewable energy systems
    Smart Grid monitoring
    Welding equipment
    Uninterruptible Power Supplies (UPS)
    Switched Mode Power Supplies (SMPS)
    Battery supplied applications

     

    Why Choose the LEM HTR 400-SB?

    The HTR 400-SB combines a 400 A rated current and ±800 A measuring range with ±4 V analog voltage output in a compact split-core package. Manufactured by LEM, it delivers stable, accurate, and safe current measurement for industrial applications. The split-core design and panel mounting options offer easy installation and system integration without system interruption. Compliance with RoHS and UL 94-V0 standards ensures reliable and safe operation in demanding industrial environments, making it an ideal choice for power supplies, drives, renewable energy, and smart grid applications.

     

    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
    ISO9001 Certification
    1 Year Warranty 

    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.

    Q: How to Request a Quote?
    -A:You have three ways to request a quote:
    1.Choose an item using a search box or browsing through product categories.Click on "Request Quote" button on the Product page.
    2.Click here for feedback on our web.
    3.If you have a BOM list or want to email us directly, please contact:
    Simon Hsu
    simon@mymacroquest.com
    Alice Wang
    alice@mymacroquest.com

    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?
    -A:Yes, you can. you can pay on our company via Credit Card/Debit Card（Mastercard, Discover, Visa, American EXpress, Diners).

    Please select the first payment method-Paypal, then you will see Credit Card/Debit Card payment button in the lower right corner.



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    Patten
    Mar 19, 2026
    Good trading process
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    Dec 01, 2025
    Good and Reliable Company
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    Sep 12, 2024
    The greatest company I have been ever working with.
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    May 02, 2023
    Elsa is easy and nice to work with.Three times cooperations,never have problem.
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    Feb 27, 2023
    Very good company, used twice, parts in perfect conditions. We will use again. Very good service.
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