STLB series high-breaking miniature circuit breaker has advanced structure,excellent performance and high breaking capacity . The material of enclosure and parts is fire ... shock withstanding . It is suitable for circuit of AC 50/60Hz,rated working voltage 415V below and rated current 63A below ... 32,40,50,63Pole number(P) 1,2,3,4Rated voltage(V) 240/415Prospective current of test line(A) 10000Power ...