Patent ID: 9147531
Filing Date: 2015-09-29
Classification: H01H

Abstract:
1. A movable contact arm assembly 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 including an opening handle, said movable contact arm assembly comprising: a first member; and a second member attached to said first member, wherein said first member is made from a first material and said second member is made from a second different material, wherein said first member and said second member combine to form a bimetallic movable contact arm, said bimetallic movable contact arm including a first end coupled to said opening handle, a second end disposed opposite and distal from the first end, and a junction intermediate the first end and the second end, wherein said first member is disposed between the first end and said junction, and wherein said second member is disposed between said junction and the second end.