... 3150,5Rated 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, ... /product of Fujian Province" and so on.5.ServiceOver 100 First-class engineers and researchers dedicated ... facilities.Welcome to our fty. V-Sa 12/17.5/24/40.5kV Indoor Medium Voltage Vacuum Circuit Breaker( ...