Electric Locking

An electromagnetic lock, magnetic lock, or maglock is a locking device that consists of an electromagnet and an armature plate. There are two main types of electric locking devices. Locking devices can be either "fail safe" or "fail secure". A fail-secure locking device remains locked when power is lost.

These locks are used to keep doors closed with electromagnetic force. Electrical current passes through the coils of the locks and magnetises to keep doors closed securely.