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    20A 3-phase EMI Line Filter, 2 Stage

    5 out of 5 based on 1 reviews | Write a review
    3-phase EMI line filter in dual-stage configuration, current rating 20A, voltage rating 440V AC, high performance, compact design, and can be used in servo system like motor drives, etc.
    SKU: ATO-EMI-83G320
    Free Shipping Worldwide
    Delivery date: 15-20 days

    20A EMI power line filter, 3-phase dual-stage, rated voltage 440V AC, features compact, easy to install and is widely used in servo system, automation equipment and machine tool, such as 3 phase motor drives, printing equipment, packaging equipment, textile equipment, industrial air conditioners etc.

    20A 3-Phase Filter Specification

    Model ATO-YX83G3-20A
    Filter Type Three Phase Three Wire
    Configuration Dual Stage
    Rated Current @ 40℃ 20A
    Rated Voltage 250/440V AC
    Operating Frequency 50/60Hz
    Leakage Current ≤10mA @ 250V AC 50Hz
    Filter Range 150KHz-30MHz
    Hipot Rating (one minute) Line to Line 1450V DC
    Line to Ground 2250V DC
    Climatic Category 25/085/21
    Working Tempearte -25°C~+85°C
    Output Termainal Screw
    Dimension See below


    3-phase emi line filter dimension

    Electrical Schematic

    3-phase dual stage emi filter electrical schematic

    Tips: Band pass filter vs. band stop filter

    1. Definition & performance
      Band pass filter: allows certain frequency band signal to pass through, and restrains lower or higher than the certain frequency band signal, interference and noise.
      Band stop filter: restrains certain frequency band signal and allows signals outside the certain frequency band to pass through.
    2. Working principle
      A perfect band pass filter should has a complete flat pass band without amplification or attenuation in the pass band, and all frequency outside pass band would be attenuated completely. Besides, the conversion outside pass band will be completed within very small frequency range. Actually, no perfect band pass filter existed. Filter can’t attenuate all frequency outside the expected frequency range completely, especially outside the requested pass band there is an attenuated but not insulated range. This is usually called filter roll down phenomenon, and expressed with attenuation fluctuation dB value of every 10 times frequency. Usually, filter design would try to guarantee roll down range as narrow as possible, in the case filter performance will get closer to design. But, with the roll down range getting smaller, pass band will no longer flat, starting to appear “ripple”. This phenomenon is obvious at pass band edge, which is called Gibbs phenomenon. Band stop filter can pass most frequency component, attenuating the certain range frequency component to extremely low level. It’s opposite with band pass filter definition. Among them, notch filter is a special band stop filter, whose stop band range is very small, and has very high Q factor.

    Existing reviews of 20A 3-phase EMI Line Filter, 2 Stage
    The line filter arrived in a timely manner.
    The line filter arrived in a timely manner and I’m using it now. I cut down line noise for the drive from other devices. It appears to be effective and the device seems to run more smoothly.
    From: Shane | Date: 25/01/2019
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