circuit breaker vs fail-safe

circuit breaker

noun
  • More specifically, a circuit breaker that automatically breaks overcurrent conditions; a type of overcurrent protective device. 

  • Synonym of trading curb 

  • An electrical switch capable of opening and closing an electrical circuit in all operating conditions, including fault situations. 

  • Quarantine measures intended to prevent spread of pandemics, such as the coronavirus. 

fail-safe

noun
  • A device, mechanism or measure designed to make something fail-safe. 

verb
  • To compensate automatically, in the event of a failure. 

  • To make a device or mechanism fail-safe, or to add a fail-safe device or mechanism to an existing system. 

adj
  • That does not cause undue damage in the event of failure. 

  • Designed to shut off for safety if an emergency occurs. 

How often have the words circuit breaker and fail-safe occurred in a corpus of books? (source: Google Ngram Viewer )