Circuit breaker with earth leakage protection

The invention relates to the technical field of circuit breakers, and particularly discloses a circuit breaker with electric leakage protection. The device comprises a shell, a leakage protection device and an overload and overcurrent protection device, the overload and overcurrent protection device comprises an actuating mechanism, a driving tripping mechanism and a contact mechanism; the actuating mechanism is linked with the driving tripping mechanism to control the opening and closing of the contact mechanism; the electric leakage protection device comprises a connecting piece, a rotating wheel, a tripping piece and an electromagnetic tripping device; the rotating wheel spring and the tripping spring jointly drive the rotating wheel and the tripping piece to abut against each other and be locked. The electromagnetic tripper corresponds to the tripping piece, and the electromagnetic tripper drives the tripping piece to rotate to trip and unlock after receiving an electric signal; the driving tripping mecha