... short-circuit breaking currentkA20,25,31.5,40,5020,25,31.56Rated short time withstand currentkA20,25,31.5,40,5020,25,31.57Rated peak withstand current50, ... system)We have passed 16 type tests by China National High Voltage Apparatus Quality Supervision Testing Center For MV products.As ... industrial facilities.Welcome to our fty. V-Sa 12/17.5/24/40.5kV Indoor Medium Voltage Vacuum Circuit Breaker(VCB)