circuit breaker vs swapping

circuit breaker

noun
  • Synonym of trading curb 

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

  • 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. 

swapping

noun
  • The act by which something is swapped; an exchange. 

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