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Hot Products

ATO-100-B333-D16/SP1

HOT OFFER// Authorized Distributor
  • MacroQuest Part#ATO-100-B333-D16/SP1
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $34.29 - $58.69
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    60-599 Pieces $55.71
    600-1199 Pieces $38.57
    >=1200 Pieces $34.29
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    Description FAQ Review
    Description

    LEM ATO-100-B333-D16/SP1 ATO Series Split-Core Current Transformer


    100A Rated Current x 333mV Voltage Output — Class 1 Accuracy for Smart Grid and Power Monitoring Applications

     

    LEM ATO-100-B333-D16/SP1 Product Overview

    The ATO-100-B333-D16/SP1 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. The SP1 variant features a 16 mm aperture with a 1-meter output cable, delivering a 333 mV voltage output at rated current.

    Rated for 100 A nominal (AC) with a measuring range up to 141.4 A (peak), it outputs 333 mV voltage signal with Class 1 accuracy (IEC 61869-2) and low phase shift. The device is optimized for 50/60 Hz power frequency applications. Supply voltage is not required as the sensor is self-powered. Mass is approximately 120 g and operating temperature is −10 °C to +55 °C. Insulation test voltage is 4.3 kV (50 Hz, 1 min) with a rated insulation voltage of 600 V CAT III PD2, basic insulation.

     

    LEM ATO-100-B333-D16/SP1 Key Specifications

    Parameter

    Value

    Rated current (IPN)

    100 A

    Measuring range (IPM)

    141.4 A

    Output signal (ISN)

    333 mV (instantaneous)

    Turns ratio

    1:1000

    Supply voltage (VC)

    Self-powered

    Accuracy (XG)

    Class 1 (IEC 61869)

    Linearity (EL)

    ±1%

    Response time (tr)

    N/A (50/60 Hz)

    Bandwidth (BW)

    50 Hz / 60 Hz

    Insulation (Vd)

    4.3 kV (50 Hz, 1 min)

    Aperture

    16 mm diameter

    Operating temp (TA)

    −10 °C to +55 °C

    Mass (m)

    120 g

    Mounting

    Chassis mount / Busbar / Plastic tie

     

    LEM ATO-100-B333-D16/SP1 Key Advantages

    The ATO-100-B333-D16/SP1 employs air-core (Rogowski) technology, delivering Class 1 accuracy and low phase shift while providing galvanic isolation up to 4.3 kV. The 141.4 A range provides overload capability for AC current measurement, while the 50/60 Hz bandwidth captures fundamental power frequency signals with precision. The 16 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 600 V CAT III rating ensures basic insulation for industrial and smart grid environments.

     

    LEM ATO-100-B333-D16/SP1 Typical Applications

    Hybrid inverter (home energy storage)
    Power metering: active power calculation for consumption analysis
    Building sub-metering: energy efficiency monitoring 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-100-B333-D16/SP1?

    The ATO-100-B333-D16/SP1 combines 100 A rated current, Class 1 accuracy, 333 mV voltage output, and 50/60 Hz operation 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 16 mm aperture and busbar mounting enable 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
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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.

    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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    Dewey
    Apr 20, 2026
    This company has a strong team ethic and a culture that fosters collaboration and cooperation. The result is a seamless and satisfying customer experience.
    Macy
    Jan 13, 2026
    Happy with the order.
    Claude
    Nov 20, 2025
    New and original part.
    Geoff
    Aug 20, 2025
    Very satisfied, the quality is guaranteed.
    Yvette
    Jul 15, 2025
    Pretty good,
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