Due to their relatively high holding power maxi magnets are an ideal solution for locking of normal sized and bigger doors.

MAG-05000 flat electric magnets are most sutiable for locking doors.
Surface mounting version.
With time delay setting (1-15 seconds after power switch-off).
Hall sensor.
With counter plate.

5000N - 510kg holding power.

Fail unlocked operation. Locked under voltage, opens without it.