<p>Switch accessories are electromechanical devices which are used to make or break the contacts 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 to change the state of an electrical or mechanical appliance, which is from ON to OFF state or vice versa. These Honeywell switch accessories are used in a variety of transportation, industrial, mechanical and medical applications such as machine tools, automatic drilling and tapping machines among others.</p> <p>The MD3211-Q Switch Accessory from Honeywell is designed for use with DT, MT Series snap action switches.</p>