Acrel ASCB1 series intelligent micro circuit breakers are applied to low-voltage terminal distribution networks in industrial, commercial, civil buildings and infrastructure fields in residential buildings and similar places. The intelligent micro circuit breaker is used with the intelligent gateway to conduct real-time monitoring of the key electrical parameters of the power line, such as voltage, current, power, temperature, leakage, energy consumption, etc., and has remote control, abnormal warning, accident trip warning alarm, electric energy metering statistics, fault positioning and other functions. This series of products can be selected from 1 pole, 2 poles, 3 poles, 4 poles.