FEATURES

Control devices for the circuit breaker play important roles for protecting the power system. It is an auxiliary switch that functions interlocking with the main circuit switching mechanism of the circuit breaker or the insulated switch, therefore it is required to have high reliability.

Rotary type auxiliary switch

• Cam-operated type

  B, BM, BH type auxiliary switch

  Applicable for shutting down relatively large current in frequently switching uses.

  BMZ and CMZ type auxiliary switches

  High-reliable auxiliary switches that have higher breaking capacity and higher impact resistance (prevention of chattering) than the conventional ones.
  All the wiring terminals are located on one side, for making wiring work easier.

• Drum type

  M type auxiliary switch

  Compactly designed and yet relatively high in breaking performance; therefore most suitable for use in downsizing equipment.

Push-type auxiliary switch

• UX-33A

  Suitable for a high-voltage electromagnetic contactor or a vacuum circuit breakers. The contact is designed to incorporate a magnet so that the breaking capacity of the contact can be increased.