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fail-secure (not comparable)

  1. A device which, if (or when) it fails, does so in a way that will cause no harm or at least a minimum of harm to other devices or danger to personnel, and doesn't cause the system to be insecure.

Usage notes[edit]

The primary use of the term is with regards to security doors and motorized gates. A motor that has "fail-secure" capabilities will, in case of a power outage, be able to be opened by means of a supplied hand crank.

Related terms[edit]