(from the article `electric switch`) device for opening and closing electrical circuits under normal load conditions, usually operated manually. There are many designs of switches; a ... Found on http://www.britannica.com/eb/a-z/t/57
a switch having a lever (toggle), the movement of which results either directly or indirectly in the connection or disconnection of the switch terminations in a specified manner. Any indirect action through an actuating mechanism shall be such that the speed of connection and/or disconnection is independent of the speed of lever movement Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=581-10-11