What is an…Electromagnetic Lock?

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.

electromagnetic lock

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

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