Circuit breaker convenient to connect

The utility model discloses a circuit breaker convenient to connect, which comprises a circuit breaker main body and wiring ports, the wiring ports are symmetrically arranged at the top and the bottom of the circuit breaker main body, the opening of each wiring port is provided with a shielding assembly, and each shielding assembly comprises a shielding plate, a rubber bulge, a rotating rod and a connecting rod. The shielding plate is arranged at an opening of the wiring port, the rubber protrusion is arranged at the bottom of the shielding plate, and the rotating rod is arranged on one side of the shielding plate. Through designed structures such as a shielding plate, a rubber bulge, a rotating rod, a connecting rod, a connecting block, a limiting groove, a clamping groove and the like, the shielding plate can cover an opening of a wiring port, so that foreign matters are prevented from falling into the wiring port before the device is connected with a wire, and the wire can be smoothly embedded into the wir