Circuit breaker assembly

The utility model discloses a circuit breaker assembly, which comprises a bottom plate, a circuit breaker body, terminal covers and an insulating part, each terminal cover is composed of a shell and a rib plate which are integrally formed, the circuit breaker body, the terminal covers and the insulating part are arranged on the bottom plate, the terminal covers are respectively arranged on two sides of a wiring terminal of the circuit breaker body, and the terminal covers are lapped on the circuit breaker body. The insulation part is arranged between the rib plate and the bottom plate, the insulation part is provided with a clamping groove, the rib plate is embedded in the clamping groove, the insulation part is additionally arranged to eliminate a gap between the bottom plate and the rib plate, electric arcs generated when the circuit breaker body is broken are prevented from penetrating through the gap, and the purpose of zero flashover is achieved. Riveting nuts are respectively arranged at the joint of th