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US 4,945,326 AGranted
Circuit breaker
AssigneeFuji Electric Co., Ltd.
InventorKiyoshi Kandatsu
Life of this patent
Estimating the term…
Abstract
A compact, high capacity circuit breaker includes two breaking portions mounted in a single casing, with movable contacts for each portion disposed in series with one another and supported by a common switching shaft. Both portions of the breaker are tripped by either an overcurrent condition or manual operation, and the positioning of the common switching shaft maintains both breaking portions in the open state.
Claims8
A circuit breaker assembly comprising:
- a housing means for enclosing the circuit breaker assembly, including a substantially rectangular casing with an outer face;
- a first breaking means for breaking the current, mounted within the casing;
- a second breaking means for breaking the current, mounted within the casing, adjacent said first breaking means, and connected in series with said first breaking means;
- a switching means for manually tripping said first and second breaking means;
- an overcurrent tripping device operable to trip said first breaking means in an overcurrent condition;
- and
- an insulating switching shaft mounted in the casing, disposed to support both the first and second breaking means.
4 more elements
Dependencies are inferred from the claim text.