Honeywell announced it has expanded its portfolio of Relialign door interlock switches with a version designed specifically for commercial applications, the Commercial Door Interlock Switch, CDI Series. Potential applications include commercial swing-door elevators, dumbwaiters, and platform/vertical lifts. The switches are designed to hold the swing door in place and prevent it from being opened when not desired, such as when the platform lift is not present at the door. A number of design features, including a door-closure retention cam, contribute to the CDI Series' enhanced safety, reduction of nuisance stoppages, simplified wiring, and ease of installation. Reliable and smooth operation is enhanced by the use of a metal key that is less susceptible than plastic to bending and breakage. The lack of open or exposed contacts minimizes the possibility of owners making manual adjustments.