Electric circuit breaker having reduced arc energy

Details Electric circuit breaker having reduced arc energy Electric circuit breaker having reduced arc energy

H - Electricity

01

H

306/56

H01H 77/10 (2006.01)

Patent

CA 1231124

ELECTRIC CURRENT BREAKER HAVING REDUCED ARC ENERGY ABSTRACT OF THE DISCLOSURE An electric circuit breaker having fast short circuit response along with reduced arc energy is provided by means of a current limiting contact arm arrangement. The contact arm is arranged to pivot independently of the circuit breaker operating mechanism under the influence of magnetic repulsion forces. A contact spring configuration controls the rate at which the contacts separate, thereby limiting the energy of the arc created upon contact separation.

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