An electric door opener ensures that you can open your front door remotely. The lock striker plater is controlled via a button that operates the electromagnet. The magnet moves a rotor that releases a spring-loaded striking plate. This ultimately unlocks the lock latch. If the control circuit is at any time interrupted, the striking plate is pushed back into the starting position by the spring. When the door is closed, the lock latch moves back over the striking plate. The latch is then pushed into position by the plate; technically speaking, it is locked.
The electrical trigger for the mechanism can come from different sources, e.g. from an intercom, fingerprint device or radio system.
An electric opener can be operated using a working current or quiescent current. Fail-locked models only unlock the front door when the circuit is closed. You cannot unlock the door in the event of a power failure. Quiescent current models unlock the door even if the circuit is broken. They are therefore ideal for escape doors. Both types of electric openers are suitable for left- and right-opening doors.