<p>Snap Action Switches, also known as micro switches, are switch devices that are used to open or close an electrical circuit at a rapid speed. These highly sensitive switches are very often used in aerospace, instrumentation, appliances, vending machines, timing devices, office equipment, computer and business equipment, test instruments, communications equipment, HVAC systems, manually operated devices, and valves, among others.</p><p>311SM3-H58 Snap Action Switch from Honeywell is a subminiature type, basic micro switch. This Honeywell 311SM3-H58 Switch comes with a choice of actuation, electrical termination and operating characteristics to provide design flexibility. Compact and lightweight, it delivers precision operation and long operating life. Featuring an elongated mounting hole, this Honeywell Switch enables more accurate and easier mounting.</p>