Circuit breaker 断路器 Compressed air circuit breaker is a mechanical switch equipment, can be i 空气压缩断路器是一种机械开关设备， 能够在 n normal and special conditions breaking current (such as short circuit cur 正常和特殊情况下开断电流（比如说短路电流） 。 rent). For example, air circuit breaker, oil circuit breaker, interference circ 例如空气断路器、 油断路器， 干扰电路的导体 uit conductor for the application of the safety and reliability of the circu