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Hot Products

AKR 200 B420L , AKR200B420L

Second. Nominal Signal[DC TRMS:Current 4-20mA]
  • MacroQuest Part#AKR 200 B420L
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $471.42 - $557.15
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    10-99 Pieces $514.28
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    Description FAQ Review
    Description

    LEM AKR 200 B420L Split-Core AC Current Transducer

    LEM AKR 200 B420L Product Overview

    The AKR 200 B420L is a split-core AC current transducer from LEM's AKR-B420L series, designed for the electronic measurement of AC currents with complex, non-sinusoidal waveforms and galvanic isolation between the primary and secondary circuits . The B420L variant features jumper selectable measuring ranges (100A, 150A, 200A) and a loop-powered True RMS 4-20mA current output .

    Rated for 200 A nominal with selectable 100A/150A/200A measuring ranges, it outputs 4-20mA with ±1% accuracy . Bandwidth is 10Hz to 400Hz and response time is <600ms . Supply voltage is 24V DC (loop-powered) . Mass is 120g and operating temperature is -20°C to +50°C . Insulation test voltage is 3kV with 150V AC rated voltage (CAT III, PD2) .

     

    LEM AKR 200 B420L Key Specifications

    Parameter

    Value

    Rated current (IPN)

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

    Measuring range

    Jumper selectable (100/150/200A)

    Output signal

    4-20mA DC (Loop-powered, True RMS) 

    Accuracy (XG)

    ±1 % 

    Response time (tr)

    <600 ms 

    Bandwidth (BW)

    10 ~ 400 Hz 

    Supply voltage (UC)

    24V DC (Loop-powered) 

    Insulation (Vd)

    3 kV RMS 

    Rated voltage (Vb)

    150V AC (CAT III, PD2) 

    Aperture

    21.7 mm 

    Operating temp (TA)

    -20°C to +50°C 

    Mass (m)

    120 g 

    Mounting

    Panel mount (DIN rail optional on request) 

     

    LEM AKR 200 B420L Key Advantages

    The AKR 200 B420L employs True RMS responding technology, delivering accurate measurement on distorted VFD and SCR waveforms where conventional average-responding sensors fail . True RMS integrates the actual waveform over time, providing reliable readings even with numerous spikes and dips per cycle . The split-core design enables quick installation on existing cables without system interruption. The loop-powered 4-20mA output simplifies wiring and reduces installation costs. The 21.7 mm aperture accommodates standard conductors, and 3kV isolation ensures safety in industrial environments .

     

    LEM AKR 200 B420L Typical Applications

    VFD Controlled Loads (motor and load monitoring from VFD output) 
    SCR Controlled Loads (phase angle fired or burst fired SCR systems) 
    Switching Power Supplies and Electronic Ballasts 
    Automation systems and data loggers
    Smart grid and energy efficiency monitoring 
    Panel meters and power management

     

    Why Choose the LEM AKR 200 B420L?

    The AKR 200 B420L combines True RMS accuracy, jumper-selectable ranges 100A/150A/200A, loop-powered 4-20mA output, and split-core design in a compact panel-mount package weighing 120g. Manufactured by LEM, it delivers stable, accurate, and safe AC current measurement for VFD, SCR, and other non-linear loads . The B420L variant is distinguished by its True RMS capability and jumper-selectable ranges, designed for applications where waveform distortion is present. The part is Active, RoHS compliant, and compliant with IEC 61010-1 and EN 61326 standards .

     

    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
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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
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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
    Xavier
    Mar 09, 2026
    Satisfied Package ,fast shipping, The quality is great. and I am Satisfied
    Yves
    Feb 27, 2026
    Great quality is always good, very satisfied, will continue to order, thank you very much, very satisfied.
    Zandra
    Sep 27, 2025
    Pleasant cooperation
    Fritzi
    Nov 04, 2024
    Very satisfied, come back later. Good seller, very patient.
    Xenia
    Jun 15, 2024
    Good reputation, timely delivery
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