Model NO.: KYN28A(GZSI) Rated Voltage((Kv: 3, 6, 10 Max. Voltage(Kv): 3.6, 7.2, 12 Rated Frequency(Hz): 50 Rated Current of Breaker(a): 630, 1250, 1600, 2000, 2500, 3150 Rated Current of Switch Cabinet(a): 630, 1250, 1600, 2000, 2500, 3150