It is a tripping zone which instantly trips, when significantly overcurrent such as short-circuit currents flow. More Details >>
It is same as the maximum rated operational voltage. More Details >>
It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and continues power supply in the event of... More Details >>
It is the maximum voltage which meets the performance criteria for the rated operational voltage. More Details >>
Operating ambient temperature is set to - 10℃ to 40℃. ( However, its average over a period of 24h does not exceed 35℃.) In the case that the ambient temperat... More Details >>
It means a space between the edge of a exhaust port and panel component ( such as wall or duct) of a circuit breaker. The arc space is needed for smoothly di... More Details >>
Operating characteristics described in our catalog (if there is no "Note" particularly) mean operating time when it starts to carry current from the conditio... More Details >>
It means that it does not interfere with tripping operation even if a handle is held at "ON" position. (It trips when an overcurrent flows even if a handle i... More Details >>
High-speed residual operate CBR
It is Earth Leakage Circuit Breaker that the earth leakage trip operating time at the rated residual operating current (IΔn) is within 0.1 sec, and the earth... More Details >>
No, you must not use 2-pole circuit breaker as 1-pole circuit breaker (series connection as only single phase ). If using it as 1-pole circuit breaker, these... More Details >>
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