Severe Test Of The Breaking And Making Capacity Of Low Voltage Pole-mounted Circuit Breakers

A new Lv Pole Mounted Circuit Breakers must be replaced, and the operating short-circuit breaking capacity, for example, 50% of the ultimate short-circuit breaking capacity, also reaches 25kA. It can not only achieve primary breaking, secondary switching (at 25kA short-circuit current) fault current and then carry its rated current, the task is very arduous.