General Electric Company

Yuet-Ying Yu

Robert Allan Morris

Roger N Castonguay

David Arnold

Paul T Rajotte

Irenaeus S Panus

James M Mitsch

Lee A Wambolt

Karen B Kowalczyk

A compact circuit breaker utilizing an electronic trip unit for overcurrent determination contains a compact slot motor and a compact arc chute to minimize and control the arc that occurs when the circuit breaker fixed and movable contacts become separated upon intense overcurrent conditions. The fixed contact is arranged on a fixed contact arm that includes an arc runner for rapidly directing the arc into the arc chute.

Current limiting circuit breaker contact arm configuration

A compact circuit breaker utilizing an electronic trip unit for overcurrent determination contains a compact slot motor and a compact arc chute to minimize and control the arc that occurs when the circuit breaker contacts become separated upon intense overcurrent conditions.

Compact current limiting circuit breaker

An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the circuit breaker cover from the environment. An auxiliary switch unit is one such accessory component which can be field-installed without affecting the integrity of the circuit breaker overcurrent protection components.

Molded case circuit breaker auxiliary switch unit

A molded case circuit breaker movable contact arm or carrier electrically connects with the circuit breaker trip unit or load terminal without requiring a flexible electrical conducting braid. The contact carrier is pivotally arranged within a contact carrier support to which the trip unit or load terminal lug is attached. The contact carrier pivot pin is supported on a pair of parallel posts extending from the contact carrier and a spring clip is positioned around the parallel posts and the pivoting end of the contact carrier to promote good electric transport without interfering with the rotational movement of the contact carrier.

Method of making molded case circuit breaker contact arrangement

An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the circuit breaker cover from the environment. A trip signal indicator is one such accessory component which can be field-installed without affecting the integrity of the circuit breaker overcurrent protection components.

Growing community of inventors

Danbury, CT, United States of America

Yuet-Ying Yu