<p>The AD3721R Switch Accessory from Honeywell provides panel mounting and comes with screw termination accessories. Switch accessories facilitate contact in an electrical circuit. They act as a physical interface between the electrical system and the real world. The primary function of an electrical switch is used to change the state of an electromechanical device from ON to OFF or vice versa. </p> <p> The Honeywell AD3721R switch accessory is a roller lever auxiliary actuator and is designed for use with snap action switches. The Honeywell AD3721R switch accessory is used in a variety of transportation, industrial, mechanical and medical applications. This Honeywell accessory is lead-free and RoHS compliant.</p>