| 摘要 |
Disclosed is a molded case circuit breaker. The molded case circuit breaker includes a case (210); an interrupter assembly (220) installed in the case (210), and provided with an arc gas outlet (222) for discharging arc gas generated from inside of the interrupter assembly to outside; an exhaustion guiding portion (230) disposed between the interrupter assembly (220) and the terminal portion (211, 212), and provided with a discharge chamber (231) therein, to thus provide an arc gas passage between the arc gas outlet (222) and a vent chute (213) of the terminal portion (211, 212); and an exhaustion cover (240) mounted to the case (210) with a structure to cover the exhaustion guiding portion (230), to thus block the arc gas passage. |
