CNW M 833

Fully encapsulated three-phase dv/dt Filter (IP20)

Description

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. The filter attenuates the voltage rise to acceptable values and prevents overvoltages on long supply lines. Losses and heating are minimized and reduces the leakage current. By limiting the rate of voltage rise, the motor insulation is protected and thus increases the service life.

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

Voltage risers is reduced to < 500V/µs.

Unique Selling Point

  • Optimal mechanical protection of the choke
  • Protection for electrical consumers
  • Limit the voltage rise to < 500V/µs
  • Extended service life of electrical consumers
  • Low leakage currents on the motor
  • Reduced losses
  • Very low noise
  • Easy construction
  • Production possible according to UL insulation system E251513

Technical Data

  • Rated voltage: U ≤ 3 x 400 V
  • Reduce the voltage rise dv / dt to < 500V/µs
  • Max. cable length to the motor: 200 m
  • Field frequency: 10 – 60 Hz
  • Short circuit voltage at 400 V: 0.8%
  • Drive switching frequency: 4 kHz > ft < 8 kHz
  • 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: IP20
  • Climatic categorie: DIN IEC 60068-1
  • Overload: 1,5 x INenn 1 min / h
  • Ambient temperature: 40 °C
  • Design: standing on foot angle
  • Nominal Voltage : 400 V
  • Rated current : 8 – 175 A
  • Inductance : 0,09 – 2 mH