Limit switches are equipped with the capacity to detect and being controlled by the motion or presence of an object. Switches are electrical devices used to break electrical circuits. Limit switches are essentially switches, that can be actuated by an object other than a human operator. Mechanical limit switches make use of physical ways to detect the presence of an object, while solid state devices use proximity sensors, light sensors, or electric switches. Limit switches are tremendously common devices used to resolve a multitude of problems in packaging, manufacturing, motor control, safety, and consumer applications.