6kA Miniature Circuit Breaker is suitable for AC 50Hz or 60Hz, rated current 125A, rated working voltage 230V and 400V or below in the power distribution; It is mainly used as the main switch of terminal electrical appliances and also control various types of electric motors, small power appliances and lighting places; Its mechanical life is 10,000 times, of which the electrical life is 4,000 times.