circuit breakers suppliers

miniature OEM ZW32 - 12 Vacuum mccb oil generator Circuit Breaker 630 / 1250 A Air Circuit Breakers Technical parameter Table 1 Circuit Breaker's Main Technical Data 　 　 　 Data NO Item Unit 12kv 1 Rated voltage kV 12 2 Rated frequency Hz 50 3 Rated current A 630/1250 4 Rated short circuit breaking current 　 kA 20/25 5 Rated peak withstand current 　 kA 50/63 6 Rated short time withstand current/ lasting time kA/s 20/4 , 25/4 7 Rated short circuit closing current(peak) 　 kA 50