Eaton Corporation

Eaton Intelligent Power Limited

Bradley Patrick Rizzo

David Curtis Turner

Jack Edward Devine

Raymond Lee Jurek

James Patrick Sisley

Brian Scott Jansto

Andrew Lawrence Gottschalk

Richard Paul Malingowski

Mark Anthony Janusek

Brian John Schaltenbrand

David Edward Little

Stephanie Feejin Lee

A shunt tab assembly is for an electrical switching apparatus, such as a circuit breaker. The electrical switching apparatus includes a housing, separable contacts enclosed by the housing, an operating mechanism for opening and closing the separable contacts, and a number of shunts. The operating mechanism includes a trip unit. The shunt tab assembly includes a shunt tab structured to be electrically connected to the shunts, a biasing element structured to bias the shunt tab toward a predetermined position with respect to the housing, and a fastener structured to mechanically couple and electrically connect the trip unit to the shunt tab.

Electrical switching apparatus and shunt tab assembly therefor

An operating mechanism including a number of biasing elements and a number of linkage members is provided. The linkage members are operatively coupled to each other and each are movable between a second configuration, an initial tripped configuration, a rebound configuration, and a final tripped configuration. The biasing elements are operatively coupled to the number of linkage members and bias the number of linkage members to the final, first configuration. A stop member is coupled to one of the linkage members. The stop member moves with the associated linkage member. The stop member is positioned to contact a stop surface when the linkage members are in the rebound configuration. Contact between the stop member and the stop surface substantially arrests the motion of the linkage members.

Trip bar stop

Electrical switching apparatus and strain relief assemblies therefor are described herein. In one exemplary, non-limiting embodiment, a strain relief assembly includes a cover and a base, each of which include a number of grooves structured to receive a number of wires. Each groove has a first side and a second side, where the second side is located opposite the first side. Furthermore, located on the first side and/or the second side are a number of protrusions. The grooves and the protrusions serve to secure the number of wires within the strain relief assembly such that, if a force is applied to an end of the wire, the protrusions work to retain the wires with the assembly.

Electrical switching apparatus and strain relief assembly therefor

A circuit breaker includes a frame, at least one conductor supported by the frame, and a breaker mechanism supported by the frame and including a trip bar assembly that actuates the breaker mechanism. The circuit breaker also includes a magnetic armature assembly including an armature plate configured to move responsive to a current in the at least one conductor and an elongate link member (e.g., a rod) coupling the armature plate to the trip bar and having at least one flanged portion retained in at least one keyed slot in at least one of the armature plate and the trip bar assembly. The elongate link member may have a narrowed portion sized to allow passage of the link member through a narrowed portion of the at least one keyed slot to facilitate engagement of the at least one flanged portion in the at least one keyed slot.

Circuit breaker and apparatus including slot-retained armature linkage and methods of fabricating the same

Growing community of inventors

Bethel Park, PA, United States of America

Bradley Patrick Rizzo