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    20A EMI/RFI Power Line Filter

    EMI/RFI power line filter, 3-phase single-stage, rated current 20A and rated voltage 440V AC. Low leakage current, excellenct attenuation performance and widely used in the 3-phase electronic equipment.
    SKU: ATO360-20
    Free shipping
    Delivery date: 6-12 days

    20A EMI/RFI power line filter is in compact size, well-functional, common use for 3-phase 3-wire power filter with excellent differential mode and common mode attenuation performance.


    Basics Model ATO360-20
    Type 3-phase single-stage
    Operating temperature -25℃~85℃
    Weight 0.56kg
    Installation Screw M4
    Technical parameters Rated voltage(Max) 440V AC
    Operating frequency 50/60Hz
    Hipot rating(one minute) Line to line 2250V DC
    Line to ground 2700V DC
    Rated current(@ 40℃) 20A
    Leakage current(Line to ground) ≤0.5mA @ 250V AC 50Hz
    Insulation Resistance(Line to ground) 200MΩ @ 500V DC for one minute
    Inductance L 1.1mH
    Capacitance CX 0.22μF
    CY 4.7nF
    Resistance R 1 MΩ
    Insertion loss in dB (measured in 50Ω system)
    Frequency(MHz) 0.1 0.15 0.5 1 5 10 30
    Common mode(line to ground) 23 25 33 35 42 42 41
    Differential mode (line to line) 10 11 30 49 80 78 65


    dimensions 20a 30a

    Electrical schematic

    electrical schematic

    Tips: Performance for using noise filter in power supply equipment

    1. Prevent outside electromagnetic noise from interfering control circuit working of power supply equipment.
    2. Prevent outside electromagnetic noise from interfering power supply loading.
    3. Restrain the EMI generating from power supply equipment itself.
    4. Restrain the EMI which is generated by other equipment and passes through the power supply.

    When switching power supply is working and electronic equipment is under switching on/off status, it may appear terminal noise at power supply equipment input end and generate radiation and conducting interference, which may also enter AC power grid and interfere other electronic equipment. Therefore, it should take effective measures to restrain. Electromagnetic shielding is the best way for restraining radiation interference of EMI noise. Using EMI filer is very effective measure for restraining conducting interference of EMI noise.

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