An electric switch that has four terminals capable of being connected in pairs in two different ways so as to reverse the direction of current flow. https://youtu.be/rDhhPtLYzCs Features: The Reversing Drum switch is mainly used to start forward or backward and stop directly three-phase asynchronous electric motor. 3 Positions: Forward, Stop, Reverse. Switch by the handle, the cam, the contact form. 3 groups contacts. -Work for start, operate, stop and reverse, mainly use for direct make-and-break squirrel-cage induction motor, use in the circuit of AC 60Hz, rated operating voltage to 380V and rated operating current to 60A. Specifications: Product name : Motor Reversing Drum Switch; Model:KO3-30-60 Switch Rated :380V 60A ; Rated Working Power: 220V/5KW 380V/7.5KW; Pole Quantity :3 Pole; Position: Forward, Stop, Reverse Main Body Size: 135 x 95 x 95mm/5.3" x 3.7" x 3.7"(L*W*H) ; Handle Size: 85 x 25mm/3.3" x 1"(L*W) ; Mounting Hole Dia :6mm/0.24"; Mounting Hole Distance: 80 x 65mm/3.2" x 2.6"(L*W) Material : Metal, Plastic ; Net Weight :758g ; Main Color: Gray, Black Package Includes: 1 x Chaoyi HY2-60 Reverse Switch 380V 7.5KW