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Hot Products

AK 200 B420L , AK200B420L

Second. Nominal Signal[DC RMS:Current 4-20mA]
  • MacroQuest Part#AK 200 B420L
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $244.59 - $328.89
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    Pieces(Min. Order)
    1-9 Pieces $328.89
    10-99 Pieces $272.55
    >=100 Pieces $244.59
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    Description FAQ Review
    Description

    LEM AK 200 B420L AK Series Split Core Current Transducer

    LEM AK 200 B420L Product Overview

    The AK 200 B420L is a split-core current transducer from LEM's AK Series, designed for the electronic measurement of AC sinusoidal waveforms with galvanic isolation between the primary and secondary circuits. The transducer features jumper-selectable ranges and provides a 4-20mA current output, making it ideal for remote monitoring applications .

    Rated for 100 A, 150 A, or 200 A nominal via jumper selection, it outputs a DC current signal of 4-20 mA with ±1% accuracy . Response time is 300 ms and bandwidth is 20-100 Hz . Supply voltage is 24 V DC loop-powered . Mass is 120 g and operating temperature ranges from -20°C to +50°C . Insulation test voltage is 3 kV AC at 50 Hz for 1 minute. The 21.7 mm aperture accommodates busbars or cables up to that diameter .

     

    LEM AK 200 B420L Key Specifications

    Parameter

    Value

    Rated current (IPN)

    100 A, 150 A, 200 A (jumper selectable)

    Measuring range (IPM)

    200 A

    Output signal

    DC 4-20 mA

    Supply voltage (VC)

    24 V DC loop-powered

    Accuracy (XG)

    ±1 %

    Response time (tr)

    300 ms

    Bandwidth (BW)

    20-100 Hz

    Insulation (Vd)

    3 kV AC, 50 Hz, 1 min

    Aperture

    21.7 mm

    Operating temp (TA)

    -20°C to +50°C

    Mass (m)

    120 g

    Mounting

    Panel mounting

     

    LEM AK 200 B420L Key Advantages

    The AK 200 B420L employs average-responding (RMS calibrated) measurement technology, delivering ±1% accuracy for AC sinusoidal waveforms while providing galvanic isolation between primary and secondary circuits for enhanced safety . The jumper-selectable 100 A, 150 A, and 200 A ranges offer flexibility for various applications without requiring multiple transducers. The loop-powered 4-20 mA output simplifies wiring and reduces system complexity, while the 21.7 mm aperture accommodates busbars and standard conductors. The split-core construction enables easy installation without disconnecting existing cables, minimizing system downtime in retrofit applications . The 3 kV AC insulation ensures safe operation in industrial environments.

     

    LEM AK 200 B420L Typical Applications

    Automation systems with analog current reading for remote monitoring
    Data loggers requiring self-powered transducers that do not drain batteries
    Panel meters for simple display of power consumption
    Motor current monitoring and protection
    Building automation and energy management
    Smart grid monitoring applications
    Industrial control cabinets
    HVAC equipment monitoring

     

    Why Choose the LEM AK 200 B420L?

    The AK 200 B420L combines jumper-selectable 100 A, 150 A, and 200 A current ranges with a loop-powered 4-20 mA output in a compact split-core package. Manufactured by LEM, it delivers stable, accurate, and safe AC current measurement for industrial and automation applications. The split-core design offers easy installation without system interruption, while the 4-20 mA process current output provides seamless integration with PLCs and control systems .

     

    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
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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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    -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.
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    3.If you have a BOM list or want to email us directly, please contact:
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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?
    -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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    Review
    Ike
    Apr 22, 2026
    Good company to work with
    Manley
    Feb 24, 2026
    I did business with Alice 6 times till now ,each time Orders always goes smoothly and in time. we will do more business with this good company.
    Derrell
    Aug 03, 2025
    Great quality and fast shipping! Product was perfect
    Pam
    Jan 27, 2025
    Prompt response with seller!!! Great Quality!!!
    Paul
    Dec 06, 2023
    The quality of this product is very good, the packaging is perfect, and the delivery speed is very fast.
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