Patent ID: 6411183
Filing Date: 2002-06-25
Classification: H01H

Abstract:
A circuit breaker comprising:main circuit contacts; an opening and closing mechanism section for opening and closing the main circuit contacts, the opening and closing mechanism section including a seesaw-type opening and closing lever that pivots vertically, and a cassette-type attached switch installed in an accessory housing section located in a main body case of the circuit breaker so as to follow a movement of said opening and closing lever to detect ON or OFF status of the main circuit contacts as an electric signal, said attached switch having an operating lever moving vertically and placed opposite a tip of the opening and closing lever when the attached switch is installed in the accessory housing section of the main body case, said operating lever having an interlocking hook thereon linked with the opening and closing lever so as to hook the tip thereof when the attached switch is in an installed position.