the difference between

air switch and circuit breaker is as follows:
{span 0} in the circuit  

air switch generally plays the role of isolation and protection in small current, also known as automatic switch.
circuit breaker has very good arc extinguishing products, in the case of short circuit, automatic tripping, in high voltage, high current circuit, for power outage, feeding point, switching on, disconnecting operation electrical.
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air switch with voltage level  is generally used in circuits with voltage below 500v, while circuit breakers can be used in circuits with voltage above 220v.
{span 0} 4 different ways of arc extinguishing  
circuit breakers have not only air circuit breakers, but also vacuum circuit breakers, multi-oil circuit breakers, low-oil circuit breakers, sulfur hexafluoride circuit breakers and so on. the difference between
accessories
is more complicated for air switches.
{span 0} power-off current capacity  
circuit breakers of various types, the power-off current is larger than the general open, and the power-off capacity is also larger. vacuum circuit breaker is used in 6kv circuit system and sf6 in 500kv substation. the general empty opening is used in 380/220 system, which is equivalent to a knife gate.
{span 0}working with load  
circuit breaker has arc extinguishing device, so it can operate with load or short circuit current. the circuit breaker has a good sealing device, so simply observing the circuit breaker can not distinguish the real closed or open state. there is no arc extinguishing device in
open, so it can not operate with current, but the open structure is simple. from the appearance, it can be seen that its operation state