Electronic device technology / overvoltage protection


Varistor protection is used to protect the windings of electric motors from voltage peaks.

Varistor protection is used in all areas where it is necessary to protect the winding of AC motors against transient voltage peaks.

The varistors are connected to the motor winding in parallel. They limit voltage peaks that can occur at the terminals of the motor windings.

  • Universally applicable for multi-pole motors in star or delta connection
  • Compact design for mounting in the motor terminal box
  • Rapid response times
  • High energy absorption, good damping of interference voltages
  • No polarity specified
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