Plug-in circuit breaker

The utility model discloses a plug-in circuit breaker, which comprises an outer shell, and a first plug bush and a second plug bush are arranged at one end of the outer shell up and down, and is characterized in that the first plug bush is in contact connection with a bimetallic strip, and the bimetallic strip is electrically connected with a moving contact on a tripping assembly through a wire; a static contact piece is arranged on one side of the moving contact and connected with a coil assembly, an iron core in the coil assembly acts to push a tripping assembly to drive the moving contact to act, the tripping assembly is connected with a button assembly, and the coil assembly is electrically connected with a quick socket assembly. And the quick socket assembly is electrically connected with the second plug bush through the conductive plate. The circuit breaker is simple in structure, reasonable in design and capable of guaranteeing stable use of the circuit breaker. 本实用新型公开了插入式断路器，包括外壳体，在所述外壳体的一端上下地设置有第一插套