单极断路器
/ˈsɪŋɡəl ˈsɜːkɪt ˈbɹeɪkə/
n
English: single circuit breaker · 单极断路器
释义：Protection device for a 120-volt circuit that, in the event of overload, is released and thus cuts off electricity to the circuits.
English: single circuit breaker · 单极断路器