1. According to the arc extinguishing device, the arcing medium can be divided into: 

(1) Oil circuit breaker (less oil circuit breaker and more oil circuit breaker). 

(2) The air circuit breaker. 

(3) Magnetic blast circuit breaker. 

(4) Vacuum circuit breaker. 

(5) Sulfur hexafluoride circuit breakers. 

2. According to the nature of operating mechanism, they can be divided into: 

(1) Circuit breaker for electric operating structure. 

(2) Circuit breaker for hydraulic operating structure. 

(3) Circuit breaker for pneumatic operating structure.

(4) Circuit breaker for spring energy storage operation structure. 

(5) Circuit breaker for manual operation structure 

3. According to the installation location, the circuit breakers can be divided into: 

(1) Indoor type circuit breaker. 

(2) Outdoor type circuit breaker. 

(3) The explosion-proof circuit breaker.