... 2500,3150,5Rated short-circuit breaking currentkA20,25,31.5,40,5020,25,31.56Rated short time withstand ... breaking current17.4,21.8,27.4,34.8,43.521.8,21.8,27.417.4,21.8,27.417.3, ... enterprise/product of Fujian Province" and so on.5.ServiceOver 100 First-class engineers and researchers dedicated in ... industrial facilities.Welcome to our fty. V-Sa 12/17.5/24/40.5kV Indoor Medium Voltage Vacuum Circuit ...