circuit breaker
US /ˈsɜːr.kɪt ˌbreɪ.kər/
UK /ˈsɜːr.kɪt ˌbreɪ.kər/

1.
disyuntor, interruptor automático
an automatic device for stopping the flow of current in an electric circuit as a safety measure
:
•
The lights went out because the circuit breaker tripped.
Las luces se apagaron porque el disyuntor saltó.
•
You need to reset the circuit breaker to restore power.
Necesitas reiniciar el disyuntor para restaurar la energía.