DZ47-63 high-segmentation micro circuit breaker (air switch) suitable for protecting short circuit and overload of the line, suitable for lighting distribution system or electric motor distribution system, beautiful and compact appearance, light weight, excellent performance and reliable separation capability high, disconnect quickly, guide rail installation, housing and parts using high flame retardant and impact resistant plastic, long service life, mainly used for AC 50Hz, rated voltage to 400V, rated current to 63A line overload, short circuit protection, while also can not often break electrical devices and lighting lines in normal conditions.