Patent ID: 9620303
Date: 2017-04-11
CPC Classifications: H01H

Claim:
1. A circuit breaker comprising: a housing; a pivotable handle held by the housing; at least one pin held by the handle such that a longitudinal axis of the at least one pin is parallel to and offset from a pivot axis of the pivotable handle; and a moveable contact arm comprising a first end portion with a width and a laterally extending recess that is open in a direction facing the handle and that extends across the width of the first end portion of the contact arm and receives and contacts the at least one pin and provides a bearing surface for a handle/contact arm interface across the width of the first end portion of the moveable contact arm, wherein the contact arm is configured to move responsive to a force applied to the first end portion of the moveable contact arm by the pivotable handle through the at least one pin, wherein the at least one pin has an axially extending centerline that is offset from a pivot axis of the handle, wherein the handle has laterally spaced apart inwardly extending first and second sidewalls, one on each side of an arm receiving channel of the handle, and wherein the first sidewall has a segment with a length that is 1.5 to 5 times longer than the second sidewall.