Arc self-extinguishing switch device

Details Arc self-extinguishing switch device Arc self-extinguishing switch device

H - Electricity

01

H

306/227

H01H 33/06 (2006.01) H01H 33/98 (2006.01)

Patent

CA 1115755

ABSTRACT OF THE DISCLOSURE A switch comprises an envelope including a pressure increasing compartment filled with an arc extinguishing fluid. A slit extends through one longitudinal side of the envelope to communicate with the compartment. A movable contact member having a flat cross section normally extends through the slit to block substantially the slit until the movable member engages a stationary contact member outside of the slit. The arc ex- tinguishing fluid increases in pressure in response to heat of an electric arc established across the separated contact member and delivered through the slit to be perpendicular to the arc axis.

323681

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