Snap Action Switches, also known as micro switches are a kind of momentary contact switch. They are highly sensitive switches that respond to very small movements and can rapidly change from one contact position to the other and are therefore mostly used in aerospace, instrumentation, timing devices, vending machines, computer and business equipment, test instruments, HVAC equipment, office equipment, manually operated devices, and valves.

111SM2 Snap Action Switch from Honeywell features a long operating life and comes with an elongated mounting hole which enables easier and accurate mounting. This Snap Action Switch offers a choice of actuation, electrical termination and operating characteristics for optimum functionality.