<p>15PA87 Switch Accessory from Honeywell is a panel seal, designed for use with toggle switches. This boot seal is for use while installing a switch and proves functional in a number of transportation, industrial, mechanical and medical applications such as machine tools, automatic drilling and tapping machines among others.</p><p> The primary function of an electrical switch is to change the state of an electrical or mechanical appliance from On to Off state or vice versa. Switch accessories, such as this seal ring, are to be used along with electromechanical devices to install them safely and make or break the contacts in an electrical circuit. The switches act as a physical interface between the electrical system and the real world.</p>