A micro switch, also known as miniature snap action switch, is a type of momentary contact switch used widely in automotive, industrial and medical instruments as sensor.
Micro-switches are switches that need a very little amount of force (push/pressure) to operate at a rapid speed. They are very reliable, fast and efficient to use. A micro-switch is also known as a miniature snap-action switch.
A micro switch is a snap-action precision changeover switch with a very small contact gap. The snap-action defines a changeover switch whereby contact making and breaking speed is independent of the operating speed of the actuator. It is also referred to as a miniature snap-action switch.