Patent ID: 7545245
Filing Date: 2009-06-09
Classification: H01H

Abstract:
1. A manual opening device for an electrical switching apparatus, said electrical switching apparatus including a housing having an opening, a plurality of pole mechanisms each comprising separable contacts, at least one operating mechanism including a number of actuators, said actuators being adapted to open and close said separable contacts of said pole mechanisms, said at least one operating mechanism being supported by said housing and including a corresponding pole shaft, said manual opening device comprising: an operating handle including a first end and a second end, the first end of said operating handle being structured to protrude through the opening of said housing; a cam assembly including a pivot and at least one cam coupled to said pivot, the second end of said operating handle being coupled to said pivot separately from said at least one cam; and a drive assembly structured to couple said cam assembly to said corresponding pole shaft of said at least one operating mechanism, and to cooperate with said corresponding pole shaft and said actuators in order to open said separable contacts of said pole mechanisms when said operating handle is moved from a first position to a second position.