... Executive Guardmode:Waterproof Model Number:COB 63A Waterproof Hoist Pushbutton Switch,COB 63A 1,UsageIt is suitable to be used in ... ac 50 Hz ac or 60 Hz ac 500 V, dc voltage, working voltage 220 ... rain and snow, and dusty environment infringement,such as the remote control of the electric hoist crane, the equipment and so ...