Pole changing switch - KLINGER BORN

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Pole changing switch

for Dahlander pole-changing circuits

Switch K3000 with pole changing switch

Special features:

  • Can be combined with many options
  • Compact design

Technical data:

Designation
Pol
Installation
Integrated
Protection type
IP54
Switching capacity
Up to max. 7.5 kW depending on model
Switching functions
0 - 1 - 2
1 - 0 - 2
1 - 2
Reversal of direction
Possible on request
2L - 1L - 0 - 1R - 2R
Function
Pole changing by cam-operated switch

Use in Series

Pole changing circuit

Pole changing circuit for two speeds 1:2

Functional description:

On pole-changing motors with one winding the number of poles is changed by a different winding connection. The most often used solution is the Dahlander circuit. In this circuit each of the three winding strands consists of two coil groups whose poles are changed (delta-double star) by series or parallel connection. Two speeds in the ratio 1:2 are thus possible by changing over with the cam-operated switch.

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