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Hot Products

ATO-100-B225-D16

HOT OFFER// Authorized Distributor
  • MacroQuest Part#ATO-100-B225-D16
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $34.29 - $58.69
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    600-1199 Pieces $38.57
    >=1200 Pieces $34.29
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    Description FAQ Review
    Description

    LEM ATO-100-B225-D16 ATO Series Split-Core Current Transformer


    100A Rated Current x 225mV Voltage Output — High-Accuracy AC Current Measurement for Smart Grid Applications

     

    LEM ATO-100-B225-D16 Product Overview

    The ATO-100-B225-D16 is a split-core current transformer from LEM's ATO Series, designed for the electronic measurement of AC waveform currents with galvanic isolation between the primary and secondary circuits. This self-powered model features a 100 A nominal primary current and provides a voltage output of 225 mV at rated current. The split-core design enables non-invasive installation on insulated conductors without interrupting the power supply.

    Rated for 100 A nominal with a measuring range from 0 A to 125 A, it outputs a voltage signal with Class 1 accuracy (per IEC 61869-2) and low phase shift. Response time is determined by the power line frequency and bandwidth is 50 Hz to 60 Hz. Supply voltage is self-powered (no external supply needed). Mass is approximately 120 g and operating temperature is -10 °C to +55 °C. Insulation test voltage is 4300 V with basic insulation rated for 600 V CAT III PD2.

     

    LEM ATO-100-B225-D16 Key Specifications

    Parameter

    Value

    Rated current (IPN)

    100 A

    Measuring range (IPM)

    0 – 125 A

    Output signal (ISN)

    225 mV

    Turns ratio

    1:1000

    Supply voltage (VC)

    Self-powered

    Accuracy (XG)

    Class 1 (IEC 61869-2)

    Linearity (EL)

    Low phase shift

    Response time (tr)

    Power line cycle

    Bandwidth (BW)

    50 – 60 Hz

    Insulation (Vd)

    4300 V / 600 V CAT III PD2

    Aperture

    16 mm diameter

    Operating temp (TA)

    -10 °C to +55 °C

    Mass (m)

    120 g

    Mounting

    Chassis mount / Panel mount

     

    LEM ATO-100-B225-D16 Key Advantages

    The ATO-100-B225-D16 employs air-core technology, delivering Class 1 accuracy and low phase shift while maintaining galvanic isolation between primary and secondary circuits. The 125 A measuring range provides flexibility for a wide variety of AC current monitoring applications, while the 50–60 Hz bandwidth captures standard power line frequencies with minimal distortion. The 16 mm aperture accommodates common industrial conductors and the split-core design with chassis mounting enables quick, non-intrusive installation without system downtime. The 4300 V insulation ensures safe operation in high-voltage environments up to 600 V CAT III.

     

    LEM ATO-100-B225-D16 Typical Applications

    Hybrid inverter (home energy storage) current monitoring
    Power metering for active power calculation
    Building sub-metering for energy efficiency monitoring and consumption analysis
    Power quality monitoring for electrical loads and distribution systems
    Distributed measurement systems
    Condition monitoring of motor loads such as conveyors and pumps

     

    Why Choose the LEM ATO-100-B225-D16?

    The ATO-100-B225-D16 combines 100 A rated current with 225 mV voltage output in a compact, self-powered split-core package. Manufactured by LEM, it delivers stable, accurate, and safe AC current measurement for industrial and smart grid applications. The self-powered design eliminates the need for external power supplies, while the split-core form factor enables rapid installation without service interruption. This model offers a cost-effective, calibration-ready solution that meets stringent IEC 61869 standards for ratio error and phase displacement.

     

    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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    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.
    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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    Review
    Quennel
    Mar 25, 2026
    Good quality, fast shipment - thank you! A+++++
    Xavier
    Sep 14, 2025
    Quick and easy deal
    Verna
    Jul 26, 2025
    Very good company ! Elsa is the best best person! It is pleasure to work with Elsa.I did business with her 5 times till now ,each time Orders always goes smoothly and in time. we will do more business with this good company.
    Gerd
    May 20, 2025
    The quality is great. and I am Satisfied
    Walter
    May 03, 2023
    Reliable company to work with! Thank you!
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