Siemens Energy & Automation, Inc.

Peter P Clickner

W Dale Robbins

David A Leone

Russell Bryant Green

James Harvey Blessitt

Mauricio Rodriguez

Michael W Souza

Pavel N Lichman

James F Ferree

Stacey L Duvall

The present invention provides a circuit breaker ( ) and a cover ( ) for a molded case circuit breaker having an operating mechanism ( ) and an intermediate latching mechanism ( ) with the cover ( ) comprising a substantially planer member having a central opening ( ) and an accessory compartment ( ) formed in the planer member on either side of the opening ( ) with the accessory compartment ( ) configured to accept a plurality of different types of accessories ( ) and having a plurality of holes ( ) wherein a circuit breaker accessory ( ) is nested in the accessory compartment ( ) and is in contact with one of the operating mechanism ( ) and the intermediate latching mechanism ( ) within the housing ( ).

Molded case circuit breaker accessory system

A method of adjusting spacing between first and second jaw structures of a plug-in base for receiving a circuit breaker is provided. The method includes providing a plug-in base having first and second jaw structures constructed and arranged to receive stabs of a circuit breaker. The first jaw structure is disposed in a first housing and the second jaw structure is disposed in a second housing Each of the first and second housings has an upper surface and an opposing lower surface A first spacer is placed between the first jaw structure and the upper or lower surface of the first housing and a second spacer is placed between the second jaw structure and the upper or lower surface of the second housing to define a certain spacing between the first and second jaw structures.

Adjustable contact jaw spacing for circuit breaker plug-in base

A circuit breaker (,) including a terminal barrier system (,). The terminal barrier system (,) includes a terminal barrier (,) attached to a circuit breaker base (,) at the terminals (,), line and load, of the breaker (,) and a terminal connector (,) mounted in the terminal barrier (,) to align with a terminal (,) of the breaker (,). Several embodiments of the terminal barrier (,) and terminal connector (,) are provided which allow flexibility in combining the various terminal barriers and terminal connectors for a given current rating of the breaker (,). The terminal barrier system (,) protects the terminals (,) of the circuit breaker during short circuit condition operations, prevents pole to pole electrification and prevents accidental contact with live electrical wires in the contacts (,). The circuit breaker (,) also includes a molded case (,), a first and second terminal (,) mounted in the case (,), the first contact (,) electrically coupled to the first terminal (,) and a second contact (,) electrically coupled to the second terminal (,). An operating mechanism (,) having a pivoting member (,) movable between an ON position, and OFF position and a TRIPPED position is coupled to the second contact (,). An intermediate latch mechanism (,) mounted in the housing (,)is coupled to the operating mechanism (,) and is selectively operated by a trip unit (,) coupled to the second contact (,) and the second terminal (,). An electric arc extinguishing apparatus (,) is mounted in the housing (,) and positioned in confronting relation with the first and second contact. (,)

Terminal barrier system for molded case circuit breaker

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Lawrenceville, GA, United States of America

Peter P Clickner