DV/Dt -Choke N CNW 806

Three-phase-dv/dt filter

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DV/Dt -Choke N CNW 806

Three-phase-dv/dt filter



The new series not only scores with a faster delivery time, but also with the conservation of resources and increased efficiency.

Reduce voltage rice to < 500V/µs – electrical consumrs and insulation will protected with low costs.

A simple and inexpensive method for reducing the rate of voltage rise is to use a du / dt filter or throttle. It dampens the voltage rise to acceptable values and prevents overvoltages on long supply lines.

Losses and heating are minimized and the leakage current reduced. By limiting the rate of voltage rise, the motor insulation is protected and thus prolongs the life.

Also, the electromagnetic interference can be reduced in the radiation range of 1 MHz to 30 MHz.


  • Protection for electrical consumers
  • Limitation of the voltage rise on <500V / us
  • Extended service life of electrical consumers
  • Low leakage currents on the motor
  • Reduced losses
  • Easy construction
  • Compact design
  • Production according to UL insulation system E251513 possible

Typical applications

Drive technology, frequency, converters, Railway, E-Mobility and Test systems

Technical specifications

  • Rated voltage: U ≤ 3 x 500 V
  • Reduce voltage rice to <500V/µs{{{wpml_tag_5}}} {{{wpml_tag_6}}}Drehfeldfrequenz: 0 – 60 Hz{{{wpml_tag_7}}} {{{wpml_tag_8}}}Taktfrequenz des Umrichters: bis 150 A > 500V/µs Field frequency: 0 – 60 Hz Drive
  • According to: EN 60289 / EN 61558
  • Test voltage: L-L 2500 V, AC/50Hz 60s; L-PE 2500 V, AC/50Hz 60s
  • Insulation class: T40/F
  • Protection rating: IP00
  • Climatic categorie: DIN IEC 60068-1
  • Overload: 1,5 x I Nenn1 min / h
  • Ambient temperature: 40 °C
  • Design: standing on foot angle

Dimensions in mm

Power Noise Reduction – save...

Voltage rise (<200V / us) and distortion...