Current limiting circuit breaker contact arm configuration

H - Electricity – 01 – H

Patent

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306/214, 306/283

H01H 73/18 (2006.01) H01H 9/46 (2006.01)

Patent

CA 2021603

CURRENT LIMITING CIRCUIT BREAKER CONTACT ARM CONFIGURATION ABSTRACT OF THE DISCLOSURE A compact circuit breaker utilizing an electronic trip unit for overcurrent determination contains a compact slot motor and a compact arc chute to minimize and control the arc that occurs when the circuit breaker fixed and movable contacts become separated upon intense overcurrent condi- tions. The fixed contact is arranged on a fixed contact arm that includes an arc runner for rapidly directing the arc into the arc chute.

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