low-pass electronic filter / active / three-phase / sine wave
SFB series Block Transformatoren-Elektronik



  • Bandwidth:


  • Type:


  • Other characteristics:

    three-phase, sine wave

  • Current:

    Max.: 440 A

    Min.: 4 A

  • Voltage:

    400 V

  • Frequency:

    150 Hz


General Data
Rated voltage 3 x 400 Vac
Rated current 4 ‑ 440 A
For motor rated output 1.5 ‑ 250 kW
For clock frequencies of 4 to 8 kHz
Rated frequency from 0 to 150 Hz
Insulation class H
Maximum ambient temperature 40 °C
Degree of protection IP 00


Prevention of overvoltages on the motor
Long cable lengths possible
Reduction in motor noise
Reduction in line‑borne and field‑borne emitted interference
Reduction in motor losses
Very good corrosion protection and low noise thanks to vacuum impregnation

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