How to distinguish between a circuit breaker and an air switch?

The difference between circuit breakers and air switches (air switches) is mainly reflected in the following aspects:
The extinguishing medium and structure are different. Circuit breakers are usually equipped with arc suppression devices, which can cut off resistance and obstacle currents; The air switch uses air as the arc extinguishing medium and is suitable for low-voltage situations.
The operation methods are different. The operation of circuit breakers can be remotely electrically controlled, while air switches are mostly manually controlled.
Different application scenarios. Circuit breakers are suitable for situations where resistance and obstacle currents need to be disconnected, such as motor protection and current circuit protection; Air switches are mainly used to control circuits and provide isolation effects.
The current energy and breaking capacity are different. Circuit breakers have greater current energy and breaking capacity than air switches, and can withstand larger loads and short-circuit currents.
The voltage levels are different. Air switches are usually suitable for low voltage situations below 500 volts; Circuit breakers are suitable for a wider range of voltage levels, including but not limited to all voltage levels above 220 volts.
The internal structure and function are different. The internal structure of circuit breakers is more complex and precise, which may include additional functions such as leakage protection, overvoltage and undervoltage tripping in addition to basic switching functions; Air switches are relatively simple and mainly used in low-voltage distribution networks and power drive systems.
In summary, although circuit breakers and air switches have similar basic functions, their differences in arc extinguishing medium, operation mode, application scenarios, and internal structure result in differences in their scope of use, safety performance, and functionality.