... 3.reliable anti-mistake operation KYN28A-12(GZSI-12Z) Series Metalclad AC Enclosured SwitchgearSpecification ItemUnitDataRated voltagekv3,6, 7.2, ... )ka40, 50, 63, 80, 100, 125Rated insulation level1min power frequency withstands voltagepole to pole, pole to groundkv24, 32, ... are openNote:1. The short-circuit capacity of current transformer is considered separately. 2. Details of the parameters of ...