Circuit breaker with improved arc extinguishing means

Details Circuit breaker with improved arc extinguishing means Circuit breaker with improved arc extinguishing means

H - Electricity

01

H

306/219, 306/93

H01H 9/30 (2006.01) H01H 9/36 (2006.01) H01H 73/18 (2006.01)

Patent

CA 1140189

6 47,894 ABSTRACT OF THE DISCLOSURE This invention relates to circuit breakers and more particularly to circuit breakers for industrial power circuits with 10,000 amp interrupting capacity and 240 V ratings. This invention provides a novel arc shield ar- rangement whereby two arc shields are placed in series alignment with a small air gap between the shield. The effect of this new arrangement increases the arc voltage and arc braking distance and yet the air gap is kept small enough to keep the arc within the shielding and away from other components where it can cause damage.

359955

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