CXB1-100 mini circuit breaker is suitable for lighting distribution system and motor  distribution system, used to protect the line against short circuit or overload, with  advantages of nice and compact  appearance, light weight, excellent performance,  high breaking capacity, quick trip,  rail installation and so on. The enclosure and parts  are made of high fire-resistance and shock resistance plastics, with long service life.  It is suitable for circuit of AC 50/60Hz, single pole 240V, or two pole  three pole  four pole 415V, applied as overload and short circuit  protection, it also can be used  to make and break the electrical and illumination circuits infrequently.