circuit breaker
US /ˈsɜːr.kɪt ˌbreɪ.kər/
UK /ˈsɜːr.kɪt ˌbreɪ.kər/
1.
断路器, 自动开关
an automatic device for stopping the flow of current in an electric circuit as a safety measure
:
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The lights went out because the circuit breaker tripped.
灯灭了，因为断路器跳闸了。
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You need to reset the circuit breaker to restore power.
你需要重置断路器以恢复供电。