SQD (GE)series miniature circuit breaker is characteristic of small size,light weight,novel structure and excellent performance.they are mounted in the illuminating distribution board and used in guesthouse,block of flat,high buildings,squares,airports,railway stations,plants and enterprises ect,in AC circuits 240V(single pole)up to 415V(three pole)50HZ for protection of overload short circuit and for circuit change-over in lighting system.