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Hot Products

ATO-10-B225-D10

HOT OFFER// Authorized Distributor
  • MacroQuest Part#ATO-10-B225-D10
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $34.29 - $58.69
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    Description FAQ Review
    Description

    LEM ATO-10-B225-D10 ATO Series Split-Core Current Transformer


    10A Rated Current x 225mV Voltage Output — Class 1 Accuracy for AC Current Measurement

     

    LEM ATO-10-B225-D10 Product Overview

    The ATO-10-B225-D10 is a split-core current transformer from LEM's ATO Series, designed for the non-intrusive electronic measurement of AC waveform currents with galvanic isolation between the primary circuit (power) and the secondary circuit (measurement). This model features a 10 A primary rated current and provides a voltage output, specifically 225 mV at rated current, with a 1-meter output cable.

    Rated for 10 A nominal with a measuring range up to 12 A (120% of IPrIPr​), it outputs 225 mV voltage signal with Class 1 accuracy (IEC 61869-2) and ±1% linearity. Response time is typical for 50/60 Hz applications, and bandwidth is 1.5 kHz (−3 dB). Supply voltage is not applicable as the device is self-powered. Mass is 81 g and operating temperature range is −10 °C to +55 °C. Insulation test voltage is 4.3 kV (50 Hz, 1 min) with an impulse withstand voltage of 7.8 kV (1.2/50 µs); creepage and clearance distances are 8 mm each.

     

    LEM ATO-10-B225-D10 Key Specifications

    Parameter

    Value

    Rated current (IPN)

    10 A

    Measuring range (IPM)

    12 A (120% of IPN)

    Output signal (ISN)

    225 mV

    Turns ratio

    44.44 A/V

    Supply voltage (VC)

    Self-powered

    Accuracy (XG)

    Class 1 (IEC 61869-2)

    Linearity (EL)

    ±1%

    Response time (tr)

    N/A (50/60 Hz)

    Bandwidth (BW)

    1.5 kHz (−3 dB)

    Insulation (Vd)

    4.3 kV (50 Hz, 1 min)

    Aperture

    10 mm diameter

    Operating temp (TA)

    −10 °C to +55 °C

    Mass (m)

    81 g

    Mounting

    Panel mount with plastic tie; optional DIN rail adapter

     

    LEM ATO-10-B225-D10 Key Advantages

    The ATO-10-B225-D10 employs air-core (Rogowski) technology for linear and phase-accurate AC measurement, delivering Class 1 accuracy and ±1% linearity while providing galvanic isolation up to 4.3 kV. The 12 A range provides overload capability up to 120% of rated current, while the 1.5 kHz bandwidth captures fundamental and low-order harmonic content in 50/60 Hz power systems. The 10 mm aperture accommodates standard primary conductors and, combined with the split-core design, enables non-intrusive installation without interrupting the power circuit. The 4.3 kV insulation with 8 mm creepage and clearance ensures reinforced insulation suitable for 600 V CAT III applications.

     

    LEM ATO-10-B225-D10 Typical Applications

    Hybrid inverter (home energy storage)
    Power metering: current measurement for active power calculation
    Building sub-metering: energy efficiency monitoring, consumption analysis, and cost allocation
    Power quality monitoring: electrical loads and distribution system equipment
    Distributed measurement systems
    Condition monitoring (e.g., motor loads such as conveyors, pumps)

     

    Why Choose the LEM ATO-10-B225-D10?

    The ATO-10-B225-D10 combines 10 A rated current, Class 1 accuracy, 225 mV voltage output, and 1.5 kHz bandwidth in a compact split-core package. Manufactured by LEM, it delivers stable, accurate, and safe current measurement for industrial and smart grid applications. The self-powered design eliminates the need for an external power supply, while the 10 mm aperture and panel mounting facilitate rapid, non-intrusive installation. The device complies with IEC 61869 standards for ratio error and phase displacement, making it particularly well-suited for modern power monitoring and energy management 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
    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
    Ritchie
    Mar 29, 2026
    Elsa & Simon are professionals. Great product,great price and on-time delivery.Hope to be doing much more business this year
    Narcisa
    Feb 06, 2026
    it's really a pleasure to deal with you ! thanks a lot!
    Zachary
    Dec 18, 2025
    Big order went smoothly!
    Quentin
    Nov 29, 2025
    Great Company, warm service!
    Percy
    Nov 20, 2025
    Very good company, used twice, parts is original. We will use again. Very good service.
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