A toggle switch is an electrical switch that is manually operated by a mechanical lever, handle or rocking mechanism. These switches are available in different styles and sizes and they are used in many applications. toggle switches provide the simultaneous actuation of multiple sets of electrical connections and they control large amounts of electrical currents.
Examples of these switches are like the mercury tilt switches, which consist of a drop of mercury inside a glass bulb with two or more contacts. Another example is the knife switch with a flat metal blade. This metal blade is hinged at one end with an insulated handle for operation and the other end is a fixed contact. A foot switch is operated using foot pressure.