Centrifugal operated switch

A centrifugal operated switch particularly suitable for operating a circuit for starter windings of a motor. A spindle is connected to and rotated by the motor shaft. Swing arms connected to the spindle move upwardly and outwardly in response to rotational speed of the spindle. A plunger is movable in the spindle, and moves together with movement of the swing arms. The plunger is operationally connected to a contactor having one end electrically connected to a first terminal, and a second end alternatively connected to and disconnected from a second terminal. Movement of the plunger causes movement of the contactor.