Fuji Electric Co., Ltd.

Tsuneo Ebisawa

Naoshi Uchida

Masao Miura

Nobuo Asahi

Eiji Nozawa

Seishiro Ozaki

A circuit breaker comprises a container made of electrically insulating material, the container being constituted by a casing and a cover; a switching mechanism contained in the container; partition walls defining a recess in the casing, the recess being separated from an interior of the container by the partition walls; and a base made of electrically insulating material, on which an accessory which is in the form of a cassette is detachably mounted, the base being detachably mounted in the recess formed in the cover.

Circuit breaker

A switching mechanism in a circuit breaker having a latch being locked from moving when the circuit breaker is in a normal 'on' state, a toggle link having a striking part being coupled to the latch and elastically urged with an elastic force by a switching spring at times when the circuit breaker is in the normal state and released from said urge at times when the circuit breaker is tripped or changed from the normal state to a tripped 'off' state, and a stopper disposed adjacent the striking part of the toggle link in that when the circuit breaker is tripped, the latch is released to cause the striking part of the toggle link strike the stopper intermediate in the tripping action so that the time required for completing the tripping of the circuit is reduced.

Growing community of inventors

Kanagawa, Japan

Tsuneo Ebisawa