An electromagnetic lock (aka magnetic lock or maglock) is a locking mechanism that consists of two components: an electromagnet and a metal armature plate. Electromagnetic locks typically come in two varieties: “fail safe” or “fail secure”, with fail-safe being the most common. Simply, fail-safe locking devices unlock when de-energized while fail-secure devices remain locked even when power is lost.
The lock itself works by energizing the electromagnet. When a current passes through, it creates a magnetic flux which then causes the armature plate to attract the electromagnet, thus creating a locking action.
What are the advantages of an electromagnetic lock?
- Easy to install
- Quick to operate
- Sturdy
- Aesthetically pleasing installed
What are the disadvantages of an electromagnetic lock?
- Requires a constant power source
- Can de-energize during a power outage, thus disabling the lock
- More expensive than mechanical locks
- Requires additional hardware such as exit buttons or devices for safe or code compliant operation.
Typical uses:
- Swing in doors
- Swing out door
- Sliding doors
- Glass, wood, hollow metal doors
- Perimeter doors
