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

1.
차단기, 누전 차단기
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.
차단기가 떨어져서 불이 나갔어.
•
You need to reset the circuit breaker to restore power.
전원을 복구하려면 차단기를 재설정해야 해.