Snap Action Switches are switch devices that are used to open or close an electrical circuit at a rapid speed. These devices are also known as micro switches and work with lever, pushbutton, and roller actuators. They are generally used in irrigation systems, semi-trailer trucks, timing devices, office equipment, medical equipment, valves, and test instruments.

DT-2R-A7 Snap Action Switch from Honeywell is a standard basic micro switch. This Honeywell Switch features two independent Single Pole Double Throw circuits in a single housing. Both these circuits are activated by one actuator. The design of this Honeywell Snap Action Switch allows various wiring combinations, as well as mounting interchangeability with type Z switches.