the circuit breaker are suitable used in ac and dc 32a below electric circuit of 50hz,up to 380v and up to dc 250v respectively,for protction of electrical circuits and apparatus in office and residence buildings,and for protection of circuit terminals against overload and short circuit.the item is a durable protection that substitutes the traditional fuse element and can be used in each fuse socket with e27 thred according to din40440.