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Du/Dt Choke CNW M 833

Fully Potted Three-Phase Du/dt Filter (Protection Class: IP00 – IP66)

Description

Reduce voltage rise to < 500V / µs – cost-effectively protect electrical loads and insulation. A simple and cost-effective method to reduce the voltage rise rate is to use a du/dt filter. The filter dampens the voltage rise to tolerable values and prevents overvoltages on long supply lines. Losses and heating are minimized, and the leakage current is reduced. By limiting the voltage steepness, the motor insulation is protected, thus extending its lifespan. EMC disturbances in the radiation range from 1 MHz to 30 MHz are also reduced. Voltage rises are reduced to < 500V / µs.

Benefits

  • Optimal mechanical protection of the choke
  • Protection Class: IP00 – IP66
  • Protection for electrical loads
  • Limitation of voltage rise to < 500V/µs
  • Extended lifespan for electrical loads
  • Low leakage currents at the motor
  • Low total losses
  • Very low noise
  • Easy installation
  • Manufacturing according to UL Insulation System E251513 possible

Typical Applications

Drive technology for motor drives, e.g., mechanical engineering, elevators / escalators, pumps, conveyor technology, ventilation and air conditioning technology, robotics, automation technology, power supplies, wind turbines
Type Protection Class Rated voltage
[V]
Rated current
[A]
Inductance
[mH]
Capacitance
[pF]
Weight
[kg]
Terminal
[mm²]
Cable
gland
CNW M 833 / 8 IP 66 3 x 400
≥ 60 Hz
8 2 330 3,3 2,5 M20x1.5
CNW M 833 / 16 IP 66 16 0,9 330 4,5 6 M25x1.5
CNW M 833 / 36 IP 65 36 0,42 1500 9 16 M32x1.5
CNW M 833 / 60 IP 65 60 0,27 2200 25 35 M40x1.5
CNW M 833 / 90 IP 65 90 0,17 4700 27 35 M40x1.5
CNW M 833 / 180 IP 65 175 0,09 10000 40 95 M63x1.5
Type Dimensions
L1
[mm]
L2
[mm]
L3
[mm]
B1
[mm]
B2
[mm]
B3
[mm]
B4
[mm]
B5
[mm]
H1
[mm]
H2
[mm]
H3
[mm]
N1
[mm]
N2
[mm]
D
[mm]
CNW M 833 / 8 170 140 150 80 80 55 20,5 5,5 170 57 75 135 65 5.5×7
CNW M 833 / 16 180 140 170 85 80 65 10,5 5,5 170 57 75 155 70 5.5×7
CNW M 833 / 36 245 175 175 115 120 80 20 20 250 140 110 155 95 5.5×15
CNW M 833 / 60 315 249 255 180 175 120 30 27 323 218 105 185 150 9×13
CNW M 833 / 90 315 250 255 180 175 120 30 25 325 218 105 185 150 9×13
CNW M 833 / 180 355 270 127 200 160 105 8 350 220 130 185 105 10×18

All data and configurations can be found in our product datasheet.

Download Datasheet

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