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Hot Products

LKSR 6-NP , LKSR6-NP

HOT OFFER// Authorized Distributor
  • MacroQuest Part#LKSR 6-NP
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $10.11 - $18.57
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    15-74 Pieces $13.26
    75-149 Pieces $12.53
    150-749 Pieces $11.42
    >=750 Pieces $10.11
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    Description FAQ Review
    Description

    LEM LKSR 6-NP LKSR Series Closed-Loop Current Transducer


    6A Rated Current x ±20A Measuring Range — Fluxgate-Level Performance with Enhanced Insulation

     

    LEM LKSR 6-NP Product Overview

    The LKSR 6-NP is a closed-loop Hall effect current transducer from LEM's LKSR series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits . This PCB-mount sensor achieves performance comparable to fluxgate technology without the added complexity and cost . The multi-range design allows four different primary connection configurations to measure 1/2, 1/3, and 1/4 of the rated current with enhanced resolution . The reference access pin provides flexible signal adaptation .

    Rated for 6 A nominal with a ±20 A measuring range, it outputs a ratiometric voltage of 2.5 V ± 0.625 V (instantaneous) with 0.5% accuracy and ±0.1% linearity . Response time is 0.4 µs and bandwidth is DC to 300 kHz . Supply voltage is +5 V (4.75 to 5.25 V) . Operating temperature is -40°C to +105°C . Insulation test voltage is 4.3 kV with a creepage and clearance distance of 9.9 mm, providing reinforced insulation capability .

     

    LEM LKSR 6-NP Key Specifications

    Parameter

    Value

    Rated current (IPN)

    6 A 

    Measuring range (IPM)

    0 … ±20 A 

    Output signal (VOUT)

    2.5 V ± 0.625 V (ratiometric) 

    Sensitivity

    104.2 mV/A 

    Supply voltage (VC)

    4.75 … 5.25 V 

    Accuracy (XG)

    ±0.5% 

    Linearity (EL)

    ±0.1% 

    Response time (tr)

    <0.4 µs 

    Bandwidth (BW)

    DC … 300 kHz 

    Insulation test voltage (Vd)

    4.3 kV 

    Creepage and clearance

    9.9 mm 

    Operating temp (TA)

    -40°C … +105°C 

    Mounting

    PCB (through-hole) 

     

    LEM LKSR 6-NP Key Advantages

    The LKSR 6-NP employs closed-loop Hall effect technology, delivering 0.5% accuracy and ±0.1% linearity while maintaining very low offset drift 14 ppm/°C . The ±20 A range provides ample headroom for measuring nominal currents up to 6 A with transient overcurrent capability, while the <0.4 µs response time and 300 kHz bandwidth capture fast-changing switching and pulse waveforms with high fidelity . The 4-pin primary footprint enhances creepage and clearance distances to 9.9 mm, making it suitable for designs with reinforced insulation requirements . The multi-range capability allows four different primary connection configurations, enabling measurement of 1/2, 1/3, and 1/4 of IPN with enhanced resolution . The 4.3 kV insulation ensures robust safety isolation in demanding industrial environments .

     

    LEM LKSR 6-NP 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)
    Renewable energy systems
    Welding power supplies

     

    Why Choose the LEM LKSR 6-NP?

    The LKSR 6-NP combines a 6 A nominal rating with a ±20 A measuring range and 0.5% accuracy in a compact, PCB-mount package . Manufactured by LEM, it delivers stable, accurate, and safe current measurement for industrial power conversion and motor control applications. The closed-loop Hall effect design offers fluxgate-like performance, excellent linearity, and low thermal drift, making it a reliable choice for critical systems where measurement integrity and insulation are paramount. The LKSR series is 100% compatible with the previous CKSR series, ensuring seamless integration into existing designs .

     

    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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    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.

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    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).

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    Phoebe
    Apr 21, 2026
    The supplier's service is very good, and we can do business in the future
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    Jan 28, 2026
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    Oct 03, 2025
    Satisfied, long-term cooperation genuine
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    Jun 18, 2025
    We do business with them regularly, always a pleasure working with elsa. Never any problems.
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    Aug 26, 2024
    Very enthusiastic sales. Come back next time
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