Effective arc stack/efficient contact carrier

Details Effective arc stack/efficient contact carrier Effective arc stack/efficient contact carrier

H - Electricity

01

H

H01H 33/16 (2006.01) H01H 9/36 (2006.01) H01H 50/54 (2006.01)

Patent

CA 2051202

DC-105 ABSTRACT OF THE DISCLOSURE A circuit breaker (51) comprising an arc stack of metal plates (52) disposed parallel to the movement of the circuit breaker's contact arm (12) is disclosed. The metal plate (54) farthest from the contact arm (12) is electrically connected to the external lug (18) of the circuit breaker (51) to provide a physical and electrical shield against unintended lug strikes. The contact arm (12) is constructed to be of low mass, minimum conductivity and highly resistent to bending, thereby enabling faster contact separation and reduced arcing currents.

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