#100175   Toggle Switch SPST 20 A - Single Pole Single Throw Simple Toggle Switch, for use controlling  toplight signs or other circuits in 117-volt household or office use, or in 12-volt Automotive applications. Can control a relay for applications requiring more than 20 Ampere current flow. [ relays also available on this website ]  Uses a .500" hole for standard mounting, and employs a standard .250 slip-on tab connector.