Patent ID: 7106155
Filing Date: 2006-09-12
Classification: H01H

Abstract:
1. An electrical switching apparatus comprising: a housing; separable contacts housed within said housing; an operating mechanism structured to open and close said separable contacts, said operating mechanism including a trip bar operable between a first tripped position and a second non-tripped position; a trip actuator assembly comprising: an enclosure, a plurality of interacting tripping elements coupled to said enclosure, one of said tripping elements engaging and actuating said trip bar in order to trip said electrical switching apparatus, an actuation subassembly housed within said enclosure and adapted to actuate said interacting tripping elements in response to a trip condition, including as said interacting tripping elements a double-lever mechanism comprising: a first trip lever pivotally coupled to said enclosure at a first location, a second trip lever pivotally coupled to said enclosure at a second location, and wherein said first trip lever pivots and engages said second trip lever in response to being engaged by said plunger, thereby causing said second trip lever to pivot and actuate said trip bar of said electrical switching apparatus.