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    100A 3-phase Power Line Filter, 2 Stage

    3-phase 3-wire or 3-phase 4-wire power line filter with dual stage configuration, 100 Amp rated current, 250V/440V AC rated voltage, high performance in EMI/RFI shielding with favorable price and high quality.
    SKU: ATO-EMI-20100
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    100A dual-stage power line filter is available with 3-phase 3-wire or  3-phase 4-wire power system, providing strong EMI/RFI protection for various electrical equipment, including printing equipment, packaging equipment, textile equipment, industrial air conditioners, UPS, motors, servo systems, communication equipment, variable frequency device, electric drives, etc.


    Model ATO-MT720-100 ATO-MT820-100
    Configuration 2 Stage 2 Stage
    Rated Current @ 40℃ 100A 100A
    Rated Voltage 250/440V AC 440V AC
    Operating Frequency 50/60Hz 50/60Hz
    Phase Three Phase Three Wire Three Phase Four Wire
    Leakage Current (250VAC 50Hz @ 20℃) ≤6.0mA ≤8.0mA
    Filter Range 150KHz-30MHz 150KHz-30MHz
    Hipot Rating (one minute) Line to Line: 1450V DC
    Line to Ground: 2250V DC
    Line to Line: 2250V DC
    Line to Neutral: 1760V DC
    Line to Ground: 2700V DC
    Climatic Category 25/085/21 25/085/21
    Working Temperature -25°C~+85°C -25°C~+85°C
    Output Termainal Threaded stud Threaded stud
    Weight 3.7kg 4.0kg
    Dimension See below See Below

    Dimensions (Unit: mm)

    • 3-Phase 3-Wire Line Filter

    100A 3-phase 3-wire EMI Line Filter Dimension

    • 3-Phase 4-Wire Line Filter

    100A 3-phase 4-wire EMI power line filter dimensions

    Electrical Schematic

    • 3-Phase 3-Wire Line Filter

    3-Phase 3-Wire 2-stage Power Line Filter Electrical Schematic

    • 3-Phase 4-Wire Line Filter

    100A 3-phase 4-wire EMI power line filter electrical schematic

    Tips: 3 key parameters of power line filter

    For EMI power line filter, rated voltage and current, pressure resistance performance, leakage current are most considered. The main evaluating performance is insertion loss.EMI power filter’s suppression capability for interference noise is evaluated by insertion loss.

    1. Standard test for insertion loss
      It is stipulated in standard measurement method, to test its insertion loss in the system with any resistance value among 50Ω~75Ω.
    2. Load test of insertion loss
      In EMI filter products, because of the unsuitable material used, it is not possible for common mode choke to guarantee fully symmetry, which would lead to saturation of magnetic rings. Meanwhile, parasitic differential mode inductor may possibly generate saturation of magnetic ring. This makes big difference between practical use and manufacturer offering data of the line filter. Therefore, load test for filter is needed.
    3. EMI filter time domain test
      Normally, for EMI line filter, we only concern about its regular performance and frequency domain suppression performance. But for EMI signal linear filter, because transmission wire itself can generate some electromagnetic interference, test signal inevitably generates some attenuation. At the time, we have to do time domain transmission performance test.
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    EMI/RFI Power Line Filter 20A, 3 phase

    SKU: ATO-EMI-1020
    EMI/RFI power line filter, three-phase three-wire single-stage, rated current 20 Amps and rated voltage 250V/440V AC. Low leakage current, compact design, threaded stud connection and excellenct attenuation performance.