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Hot Products

HTA 300-S , HTA300-S

HOT OFFER// Authorized Distributor
  • MacroQuest Part#HTA 300-S
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $54.86 - $71.42
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    1-9 Pieces $71.42
    10-99 Pieces $62.85
    >=100 Pieces $54.86
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    Description FAQ Review
    Description

    LEM HTA 300-S HTA Series Open Loop Hall Effect Current Transducer

     

    LEM HTA 300-S Product Overview

    The HTA 300-S is an open-loop Hall effect current transducer from LEM's HTA Series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits. This panel-mount transducer features a 24 mm diameter aperture for non-intrusive installation without disconnecting existing cables.

    Rated for 300 A nominal with a measuring range of ±1000 A, it provides a choice of ±4 V or ±10 V analog voltage output with ±1% accuracy and ±0.5% linearity. Response time is <10 µs and frequency bandwidth (-3 dB) is DC to 40 kHz. Supply voltage range is ±15 V (±5%) with a current consumption of 30 mA plus output current. Mass is 275 g and operating temperature ranges from -10°C to +70°C. Insulation test voltage is 3 kV RMS at 50 Hz for 1 minute. The output connection uses 5-pin FASTON connectors, and the insulating plastic case is recognized according to UL 94-V0.

     

    LEM HTA 300-S Key Specifications

    Parameter

    Value

    Rated current (IPN)

    300 A

    Measuring range (IPM)

    ±1000 A

    Output signal

    ±4 V or ±10 V (voltage)

    Supply voltage (VC)

    ±15 V (±5%)

    Accuracy (X)

    ±1 %

    Linearity (εL)

    ±0.5 %

    Response time (tr)

    <10 µs

    Bandwidth (BW)

    DC to 40 kHz (-3 dB)

    Insulation test voltage (Vd)

    3 kV RMS / 50 Hz / 1 min

    Aperture

    24 mm diameter

    Operating temp (TA)

    -10°C to +70°C

    Mass (m)

    275 g

    Mounting

    Panel

    Secondary connection

    5-pin FASTON

    Technology

    Open-loop Hall effect

     

    LEM HTA 300-S Key Advantages

    The HTA 300-S employs open-loop Hall effect technology, delivering ±1% accuracy and ±0.5% linearity while providing galvanic isolation. The ±1000 A measuring range accommodates overloads up to approximately 3.3 times nominal current. The 24 mm aperture enables easy installation without disconnecting cables, and the 40 kHz bandwidth captures dynamic signals. The user-selectable ±4 V or ±10 V output provides flexibility, and 5-pin FASTON connectors simplify wiring.

     

    LEM HTA 300-S Typical Applications

    AC variable speed drives and servo motor drives
    Static converters for DC motor drives
    Battery supplied applications
    Uninterruptible Power Supplies (UPS)
    Switched Mode Power Supplies (SMPS)
    Power supplies for welding applications
    Renewable energy and smart grid systems
    Traction and chopper circuits

     

    Why Choose the LEM HTA 300-S?

    The HTA 300-S combines a 300 A rated current and ±1000 A measuring range with selectable ±4 V or ±10 V voltage output in a robust panel-mount package. Manufactured by LEM, it delivers stable, accurate, and safe current measurement for industrial applications. Compliance with EN 50178 and UL 94-V0 ensures reliable operation in demanding environments. The 5-year LEM warranty provides long-term reliability assurance.

     

    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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    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

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    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. 


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    Review
    Ira
    Apr 01, 2026
    Trustworthy and Professional
    Phillips
    Oct 27, 2025
    GREAT PARTS,GREAT SERVICE.
    Lula
    Aug 14, 2025
    quick delivery.happy with product.will buy again
    Gilmore
    Dec 12, 2024
    Great Supplier. No Problems, will order next time.
    Valentina
    May 26, 2023
    received good quality products in time...
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