Rotary contact assembly for high ampere-rated circuit breakers

Details Rotary contact assembly for high ampere-rated circuit breakers Rotary contact assembly for high ampere-rated circuit breakers

H - Electricity

01

H

H01H 73/00 (2006.01) H01H 71/10 (2006.01) H01H 73/04 (2006.01) H01H 77/10 (2006.01)

Patent

CA 2242066

A circuit breaker rotary arm for movable contacts is used within a plurality of single pole circuit breakers ganged together to form a single multi-pole circuit breaker. To provide uniform contact wear among the associated circuit breaker contacts, a rotor carrying a pivot of the rotary contact arm is slotted to automatically position the rotary arm supporting the movable contacts to allow for changes in the geometry of the contacts while maintaining constant contact compressive forces. The individual circuit breakers connect with the central operation mechanism by means of a single pin.

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