Circuit breaking device

The invention provides a circuit breaking device, and relates to the technical field of power equipment. The circuit breaking device comprises a cabinet body, an incoming line side wiring terminal, adisconnecting switch, a linkage operating mechanism, a circuit breaker and an outgoing line side wiring terminal. The disconnecting switch, the linkage operating mechanism and the circuit breaker arelocated in the cabinet body, and the incoming line side wiring terminal, the disconnecting switch, the circuit breaker and the outgoing line side wiring terminal are sequentially connected along a power side cable towards an outgoing line side cable. The incoming line side wiring terminal is connected with the power side cable, and the outgoing line side wiring terminal is connected with the outgoing line side cable. The linkage operation mechanism includes a first motion output end and a second motion output end, and the first motion output end and the second motion output end respectively act on a moving contact of t