Magnetic lock is an electro-mechanical device that secures doors and entryways using an electromagnet and an armature plate. When energised, the electromagnet attracts the armature plate, creating a locking action that holds the door closed. This type of lock requires electrical power to maintain the locking mechanism, making it fail-safe; that is, the door unlocks automatically during a power outage, ensuring safety in emergency situations.
These locks are characterised by their sheer holding force, typically measured in pounds or kilograms, which can range from several hundred to several thousand, making them highly effective for securing high-traffic or sensitive areas. The simplicity of their design, involving fewer moving parts than traditional mechanical locks, contributes to both a lower maintenance requirement and a higher durability, resisting wear and tampering.
Magnetic locks are often integrated into comprehensive security systems, equipped with features such as delayed egress, which holds the door locked for a set period after being unlocked, and status sensors that report whether the lock is engaged. Their use spans various applications from residential to high-security environments, reflecting their adaptability and reliability in providing secure access control.