The most authoritative answer in 2024
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Benjamin Taylor——Works at the International Energy Agency, Lives in Paris, France.
An
electromagnetic lock,
magnetic lock, or maglock is a
locking device that consists an electromagnet and an armature plate. ... Direct pull
electromagnetic locks are inherently fail-safe. Typically the electromagnet portion of the
lock is attached to the
door frame and a mating armature plate is attached to the
door.
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