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
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.
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
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.
|Item||Rating||Performance||Standard operating condition|
|Rated insulation voltage (Ui)||Rated current-carrying capacity (Ith)||Terminal screw||Electrical life||Mechanical life||Contact resistance||Withstand voltage||Ambient temperature||Altitude|
|B-AUS||600V||20A||M4×9||500,000 (110V DC 1.5A L/R=40ms)||1,000,000||50mΩ max.||2,500V for 1 min.||-20 to 60℃||2,000m max.|
|BM-AUS||600V||20A||M4×9||500,000 (110V DC 1.5A L/R=40ms)||1,000,000||50mΩ max.||2,500V for 1 min.||-20 to 60℃||2,000m max.|
|BMZ||250V||20A||M4×9||50,000 (110V DC 5A L/R=40ms)||500,000||50mΩ max.||2,000V for 1 min.||-20 to 60℃||2,000m max.|
|CMZ||250V||20A||M4×9||30,000 (110V DC 5A L/R=40ms)||500,000||50mΩ max.||2,000V for 1 min.||-20 to 60℃||2,000m max.|
|30,000 (110V DC 5A L/R=40ms)||30,000||50mΩ max.||2,000V for 1 min.||-20 to 60℃||1,000m max.|
|10,000 (110V DC 2A L/R=40ms)||50,000||50mΩ max.||2,500V for 1 min.||-20 to 60℃||2,000m max.|
|UX-33A||250V||10A||M4×8||250,000 (110V DC 3A L/R=40ms)||1,000,000||50mΩ max.||2,500V for 1 min.||-20 to 60℃||2,000m max.|
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