<p>The Honeywell 311SM6-H4 Snap Action Switch is a basic micro switch. This Honeywell Switch is designed for precision on/off application needs. It features a screw mount, single pole double throw circuitry and roller lever actuator. It delivers a long operating life even in harsh environment applications.</p> <p>Snap Action Switches, also known as micro switches, are electromechanical 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 various industrial and aerospace applications. Typical uses of this Honeywell Snap Action Switch include precision switch assemblies in commercial aircraft to monitor doors, landing gear, cockpit applications as well as military application, pressure and temperature switches, power generation, etc.</p>