Circuit breaker switch pole

A circuit breaker switch pole comprises an insulating shell used for installing a vacuum bubble and a wiring assembly, and a through groove allowing the wiring assembly to pass through is formed in the side wall of the insulating shell; the lower end of the through groove is open. The circuit breaker switch pole has the advantages that as the through groove with the opening in the lower end is formed in the insulating shell, when the circuit breaker switch pole is assembled, the vacuum bubble, the wiring assembly, the pressure spring assembly and other components can be assembled into a whole, and then the whole is arranged in the insulating shell; compared with an assembling mode that the vacuum bubble, the wiring assembly and the pressure spring assembly need to be sequentially arranged in the insulating shell and the wiring assembly needs to extend into the insulating shell to be connected with the vacuum bubble in the conventional technology, the problem that the vacuum bubble is damaged due to rotation c