<p>The 1DM437 Safety Interlock Switch from Honeywell is a special application precision switch. Featuring a snap-in panel mount design, this Honeywell Switch is easy to install and use. Safety Interlock Switches are designed for mounting on a door or a cover, so that when the door or other part is opened, they open automatically. They prevent the gear shift lever from moving until the brake is applied.</p> <p>The 1DM437 switch is available with a choice of momentary, alternate push-pull or pull-to-cheat operation to offer design flexibility. With nearly one million operations at a 95% survival rate, this Interlock Industrial Switch delivers long mechanical life. These safety switches are generally used in appliance door lights, door interlocks, and stop or start switches, among others.</p>