Switch 08 : Device by which a small amount of force, which may be mechanical or electrical, is used to allow the flow of a much larger force, for example, electric current, into a circuit
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}