DA726: 12V DC or 24V DC-powered, normally open interlock
These are normally free door interlock controllers. When all doors are closed, their contacts are closed and are wired to release the other door(s). As soon as any door opens, its contacts lock the other doors immediately, and they stay locked until the first door's contact closes again. This then allows another door to open.
Note:
Indicators:It is recommended that door lock indicators are fitted to show the door status, such as the DA340
Violate: As the doors are normally unlocked, it is possible to open both doors together if perfectly synchronized. Careful positioning of the reed and magnetic locks can reduce, but not completely eliminate, the possibility.
