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    Current Transformer, 10/5A, 20/5A, 40/5A to 75/5A

    5 out of 5 based on 1 reviews | Write a review
    Current transformer rated voltage up to and including 0.66 kV and rated frequency 50 Hz. Current radio can be selected 5/5A, 25/5A, 50/5A, to 70/5A, Secondary load can be selected 0.5s, 0.2, 0.2s. AC current transformer with small size and low cost.
    SKU: ATO-LMK1-0.66-SO
    Delivery date: 6-12 days

    Cheap AC current transformer with light weight, low price, fast response, high accuracy and good stability. The current ratio range is 5:5A,  25:5A, 30:5A, to 75:5A, sold directly by the manufacturer and free shipping.


    Product Name Current Transformer
    Model Number ATO-LMK1-0.66-SO
    Weight 1 kg
    Current ratio (A) VA Secondary/ Burden load (VA)
    1 0.5 0.5S 0.2 0.2S
    5/5  /  / 5 5 5
    10/5  /  / 5 5 5
    15/5  /  / 5 5 5
    20/5  /  / 5 5 5
    25/5  /  / 5 5 5
    30/5  /  / 5 5 5
    40/5  /  / 5 5 5
    50/5  /  / 5 5 5
    75/5  /  / 5 5 5
    Rated Frequency 50 Hz
    Rated Test Voltage 3kV AC (1min)
    Rated short-time thermal current (ith) 60 in
    Rated dynamic current (idyn) 2.5 lth
    Rated voltage (Um) 0.72 kV AC
    Continuous overload (ld) 1.2 in
    Operating temperature -10℃~50℃
    Housing self-extinguishing class VO
    Safety factor FS 5
    Secondary current 5A/ 1A
    Installation sites Indoor
    Ambient humidity ≦80%
    Altitude ≦1000m
    Atmospheric conditions No serious impurity in the atmosphere

    Current Transformer Dimension




    Current Transformer Dimension

    Tips: How to Prevent Current Transformer Burning up?

    • Add a watchdog breaker and avoid the power failure of whole feeder line caused by faults on branches, particularly, ensure that the branch breaker can trip correctly in case of single-phase grounding at the user side.
    • Connect the metering current transformer downstream the breaker, so as to guarantee that the breaker and lightning arrester operate correctly to remove faults when the transformer breaks down.
    • Strengthen the flashing test for user’s high voltage metering current transformer and lightning arrester (it shall not be more than 4 years according to regulations), find out the aging degree of current transformer and lightning arrester insulation as early as possible, replace timely to avoid power failure caused by burning out of metering current transformer.
    • Clean the user primary device regularly to reduce the occurrence of flashover, avoid insulation reduction.
    Existing reviews of Current Transformer, 10/5A, 20/5A, 40/5A to 75/5A
    Good frequency response
    I am using to monitor a well pump current draw. Devices installed easily and perform well. Good frequency response aided in identifying the various loads. I am very satisfied with this current transformer.
    From: Thomas | Date: 27/09/2018
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