cam switch,rotary cam switch,selector switch,universal changover switch,combination switch,LW26,LW2,LW6,YMW26, ... LW28 cam switch,rotary cam switch,selector switch,universal changover switch,combination switch,LW26,LW2,LW6,YMW26 ... all-purpose transfer switch is used in AC 50Hz rated voltage up to 440V, 240 V DC rated current up to ...