All Crouzet Switches are designed based on basic snap action switch technology. The key feature of snap action switch technology is the speed with which the contacts open or close is independent of the actuation speed of the command device. The four main components are the push button, blade, contacts, and case. The actuator or push button is pressed and moves the flexible blade to complete the circuit when the contacts touch. The switch housing protects the switch from the elements. This single-break changeover switch can come in three different electrical forms – changeover SPDT (form C), normally closed (form B), or normally open (form A).