Patent ID: 8519289

Claim:
A secondary trip mechanism for an electrical switching apparatus, said electrical switching apparatus including a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing said separable contacts, said operating mechanism comprising a poleshaft, a latch assembly and a trip D-shaft structured to unlatch said latch assembly in response to a trip condition, said secondary trip mechanism comprising: a trip D-shaft assembly structured to be disposed on said trip D-shaft; and a link assembly comprising a linking member, said linking member including a first end and second end disposed opposite and distal from the first end, the first end being structured to cooperate with said poleshaft, the second end cooperating with said trip D-shaft assembly, wherein, when said poleshaft moves in response to a trip condition, said linking member is structured to transmit movement of said poleshaft into movement of said trip D-shaft assembly, wherein said trip D-shaft assembly includes a hub having a recess; and wherein the second end of said linking member cooperates with said shaft hub at or about said recess, and wherein said poleshaft includes an interlock pin; wherein the first end of said linking member includes a barb; and wherein said barb is structured to interlock with said interlock pin; and wherein, when said barb interlocks with said interlock pin, said linking member is structured to move with said poleshaft.