Siemens Industry, Inc.

Hai Chen

Hector Malacara

John David Stephenson

Jesus Hernandez

Larry Navarre

Russell Thomas Watford

William Anthony King, Jr

Hector Manuel Malacara-Carrillo

Mario Munoz

Justin Cyle Bennett

A circuit breaker including at least two contact tip that comprise an electrical contact material comprising silver (Ag) and tungsten (W). The contact tip further comprises a graphene material (Gr) additively mixed in Ag as being denoted as AgGr0.3% or AgGr0.5% which is mixed with tungsten (W) to form (AgGr0.3)W50 or (AgGr0.5)W50 called a silver-graphene tungsten composite material.

Silver-graphene tungsten material electrical contact tips of a low voltage circuit breaker

A smart residential circuit breaker includes a hybrid assembly that incorporates a solid-state circuit element integrated into a simplified mechanical pole having main contacts. The solid-state circuit element includes a printed circuit board (PCB) with a micro SD reader to provide faster opening speeds. The smart residential circuit breaker is configured for use for different current levels and controlled by the PCB. The smart residential circuit breaker includes a mag-latch. The PCB is configured to send a signal to the mag-latch to open and close the main contacts within microseconds of detecting an over-current.

Smart circuit breaker

An electrical contact apparatus having low silver content and defined thickness and length geometry. The electrical contact apparatus has a contact body made of a silver-containing alloy having SC&#x2264;60 wt. %, and having L/T&#x2265;5.4, wherein L is a longest contact length dimension of the contact body, T is a maximum contact thickness dimension of the contact body, SC is the silver content in wt. %, and L/T is a contact dimension ratio. Electrical contact assemblies, circuit breaker electrical contact subassemblies, and methods of operating a circuit breaker electrical contact subassembly are disclosed, as are other aspects.

Low-silver, low-profile electrical contact apparatus and assembly

Circuit breakers having an electrical contact assembly with a moving electrical contact that is linearly translatable within an inner cavity are disclosed. A guide linearly carries a moveable contact assembly having the moving electrical contact and the guide has one or more guide supports accessible by a drive member external to the cavity. According to another aspect, a circuit breaker electrical contact assembly and method of operating a circuit breaker is provided, as are other aspects.

Circuit breaker with translating electrical contact, circuit breaker electrical contact assemblies, and operational methods

A circuit breaker which includes first and second contact pairs and a contact arm arranged in series. A first arm contact and a first terminal contact from a first line terminal form a first contact pair. A second arm contact and a second terminal contact from a second line terminal contact form a second contact pair. The first contact pair, contact arm and second contact pair are connected in a series arrangement in which the air gaps formed when the first and second contact pairs are separated combine to form an effective air gap which is double in size and thus increases an interrupting capacity of the circuit breaker. An arc chamber is associated with the first and second contact pairs for extinguishing an arc formed in the air gaps. The first and second contact pairs may also be arranged in a parallel configuration for increasing an amperage rating of the circuit breaker.

Circuit breaker having dual arc chamber

The present invention relates generally to a plastic cradle. More particularly, the invention encompasses a plastic cradle utilized inside a molded circuit breaker (MCB). The present invention is also directed to a novel nonconductive nonmagnetic cradle that engages a contact arm between a first terminal conductor and a second terminal conductor inside a molded circuit breaker (MCB) in an ON state, and disengages same in an OFF or Neutral state.

Plastic cradle

A line terminal for a circuit breaker includes a body forming two opposing legs and a third leg. The opposing legs are configured to form a passage for receiving a stab from a panel board. The two opposing legs are biased toward each other, and each of the opposing legs has a convex surface facing the passageway for engaging and maintaining alignment of the stab. A fixed contact is attached to the third leg. The fixed contact connects to a moveable contact of a circuit breaker. An arc runner is connected to the third leg and at least partially encloses a perimeter of the fixed contact.

Self-adjusting plug-in line terminal

Certain exemplary embodiments can provide a system, which can comprise a set of substantially planar arc plates. The substantially planar arc plates can be adapted to cause a dissipation of energy caused by an arc in a circuit breaker. A housing can be adapted to receive each of the set of substantially planar arc plates.

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Duluth, GA, United States of America

Hai Chen