Power supply: 380VAC/50HZ 220VAC/HZ
Protctive grade: IP68
Explosion-proof type: Flameproof mark: Exd second BT4
Ambient temperature: -30 centigrade degree ~+70centigrade degree
Ambient humidity: ??95%
Working frequency: 60 cycles per hour. The continous operating time shall be 15minutes per hour.
Sk series multi-rotating swithing type electric actuators applies for the occasions that start frequency is less than 60 cycles per hour and max continuous operating time less than 15 minutes per hour. It can be used in gate valve and stop valve.