main control switch for an electrical system or machine

electrical switch used to open or close a circuit by means of a metal blade that pivots into a slot

sensitive electrical switch that requires very little physical force to be triggered

An electrical switch that automatically turns a device on or off at a pre-set time.

A switch operated by compressed air or gas, including specific proprietary implementations like Jet-Tron

(electricity) A low-voltage switch used to open or close a circuit, named for its blade-like handle; also called a [[刀开关|刀開關|dao1 kai1 guan1]] or [[闸刀|閘刀|zha2 dao1]]