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Hot Products

LF 210-S , LF210-S

HOT OFFER// Authorized Distributor
  • MacroQuest Part#LF 210-S
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $55.12 - $73.85
    / Pieces
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    Pieces(Min. Order)
    1-9 Pieces $73.85
    10-49 Pieces $69.42
    50-99 Pieces $59.81
    >=100 Pieces $55.12
    Quantity:
    In Stock
    $55.12
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    Description FAQ Review
    Description

    LEM LF 210-S ClosedLoop Hall Effect Current Transducer

     

    LEM LF 210-S Product Overview

    The LF 210-S is a closedloop Hall effect current transducer from LEM's LF series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). The LF series is known for high accuracy, fast response, and robust design for demanding industrial environments. The "S" suffix indicates a standard panelmount version.

    The sensor features a 25.5 × 25.5 mm aperture for the primary conductor crossing and is designed for panel mounting with multiple mounting options (vertical or horizontal). It provides a 100 mA instantaneous current output with a 1:2000 turns ratio. Accuracy is ±0.4%, with linearity ±0.1% and a response time of 1 µs.

    The LF 210-S operates on a ±12V to ±15V bipolar supply, with a DC~100 kHz frequency bandwidth. It features a 6 kV RMS insulation test voltage, 6.9 mm creepage distance, and 6.3 mm clearance for highvoltage safety. The insulated plastic case is recognized according to UL 94V0 and the sensor is designed for drives, power supplies, renewable energies, and welding applications.

     

    LEM LF 210-S Key Technical Specifications

    Parameter

    Specification

    Nominal Current (IPN)

    200 A RMS

    Measuring Range (IPM)

    ±400 A

    Output Signal (ISN)

    100 mA instantaneous current

    Turns Ratio (KN)

    1 : 2000

    Technology

    Closedloop Hall Effect

    Accuracy (XG)

    ±0.4 %

    Linearity (EL)

    ±0.1 %

    Supply Voltage (VC)

    ±12V to ±15V DC bipolar

    Supply Current (IC)

    20 mA + IS

    Frequency Bandwidth

    DC ~ 100 kHz

    Response Time (tr)

    1 µs

    Insulation Test Voltage (Vd)

    6 kV RMS / 50Hz / 1 minute

    Creepage Distance

    6.9 mm

    Clearance Distance

    6.3 mm

    Aperture

    25.5 × 25.5 mm

    Operating Temperature (TA)

    -25°C to +70°C

    Mounting Type

    Panel Mount

     

    LEM LF 210-S Core Advantages

    The LF 210S employs closedloop Hall technology with active compensation, delivering ±0.4% accuracy and ±0.1% linearity across the full measuring range. This architecture fundamentally eliminates core saturation errors that degrade performance in openloop sensors. The sensor is fully bipolar and galvanically isolated through its reinforced plastic case recognized according to UL 94V0.

    The ±400 A measuring range provides 2× overload capability, giving ample safety margin for traction system transients and fault conditions. The 1 µs response time and 100 kHz bandwidth capture fast IGBT switching transients and highfrequency current components essential for protection and control applications. The 25.5 × 25.5 mm aperture accommodates busbars and cables, and the sensor supports multiple panel mounting options.

    The 6 kV RMS insulation test voltage and 6.9 mm creepage distance ensure superior safety in highvoltage applications. The sensor features low temperature drift, wide frequency bandwidth, no insertion losses, high immunity to external interference, and current overload capability.

     

    LEM LF 210-S Target Applications

    The LF series is designed for highprecision measurement of DC, AC, and pulsed currents in demanding industrial and railway applications. Typical applications include:

    AC variable speed drives and servo motor drives
    Static converters for DC motor drives
    Battery supplied systems
    Uninterruptible Power Supplies (UPS)
    Switched Mode Power Supplies (SMPS)
    Power supplies for welding applications
    Windmill inverters
    Test and measurement equipment
    Railway traction systems (trackside and onboard)
    Single or threephase inverters
    Propulsion and braking choppers
    Propulsion converters
    Auxiliary converters
    Battery chargers

     

    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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    Less
    Review
    Uriah
    Mar 05, 2026
    Fast delivery.I am satisfied.
    Gilmore
    Mar 25, 2025
    Trusted Company. Hope to do more business buy and sell in future. We recommend this company to all. Simon is the best
    Quintin
    Jan 18, 2025
    Great product,great price and on-time delivery.
    Ulysses
    Dec 21, 2024
    The quality is quite good and the supplier's attitude is good
    Ginger
    Mar 08, 2024
    We had many cooperations with Macroquest ,Excellent Company with good renown here ,Hope we can have more Excellent cooperations in the near future .Thanks !
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