CMTB1-63 DC MCB miniature circuit breaker bụ ụdị ngwaọrụ nchebe emebere iji nye nchebe a pụrụ ịdabere na ya na nke ọma megide mmejọ eletrik na sekit DC.Ọ nwere ike ichekwa ngwa eletriki na akụrụngwa ibu ndị ọzọ site na oke ibu na nsogbu mkpirisi okirikiri, ma chekwaa nchekwa sekit.Ihe mgbaji sekit nke DC nke a makwaara dị ka DC MCB,