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8159319 |
Double-breaking contact system for a low voltage circuit breaker, a molded case circuit breaker comprising the double-breaking contact system, and a method for breaking a circuit
A concept of a double-breaking contact system with a rotating contact arm is disclosed. In at least one embodiment, a novel arrangement of fixed conductors that cross over the contact arm is...
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8134428 |
Circuit breaker with electronic sensing and de-latch activation
A circuit breaker and method includes a mechanical pole moveable between a latched position and an unlatched position to open an electrical connection between a pair of electrical contacts. An...
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8071898 |
Switching device with a switching shaft for mounting a rotary contact link and multipole switching device arrangement
A switching device, in particular a circuit breaker, is disclosed including a switching shaft for mounting a rotary contact link. According to at least one embodiment of the invention, the rotary...
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8004376 |
Electrical switching apparatus and shunt separator therefor
A shunt separator is provided for an electrical switching apparatus including a housing, separable contacts enclosed within the housing, an operating assembly including a trip bar, and a trip...
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7977592 |
Double break disconnect/contact system
The present invention relates generally to a mechanism of a contact system for circuit breakers. More particularly, the invention encompasses a mechanism for a rotary double-break contact system,...
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7948336 |
Mold cased circuit breaker
A mold cased circuit breaker is disclosed that enables a user to easily discern an actually connected state between stationary contactors and movable contactors and forcibly separates a connection...
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7911302 |
Secondary trip system for circuit breaker
A mechanism for a circuit breaker contact arm that allows current limiting by reducing the opening time is disclosed. A secondary trip assembly is arranged to actuate due to magnetic forces...
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7812276 |
Electrical switching apparatus, and arc chute and arc member therefor
An arc member is provided for an electrical switching apparatus. The electrical switching apparatus includes an operating mechanism for opening and closing separable contacts, and an arc chute...
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7772943 |
Design and method for keeping electrical contacts closed during short circuits
An electrical contact assembly resists blow-open under conditions of increased current flow. The contact assembly includes parallel conducting surfaces on fixed and moveable conductors that...
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7750766 |
Automatic circuit breaker with tripping device activated by a movable contact
Embodiments of an automatic single- or multi-pole circuit breaker for use in low-voltage applications are disclosed. The circuit breaker includes at least a first fixed contact this is...
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7716816 |
Method of manufacturing a switch assembly
A method of forming a switch assembly that includes a magnetic intensifier constructed to extend in generally close proximity to one of the stationary contact and the arc contact. During...
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7683276 |
Electrical switching apparatus and pole shaft assembly therefor
A pole shaft assembly for a circuit breaker includes a receiving portion disposed on the exterior side of the housing, a pole shaft pivotably disposed within the receiving portion and including at...
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7652871 |
Methods and systems for electrical power sub-metering
An electrical distribution panel includes a backplane, a circuit breaker comprising a load conductor for transmitting electrical power to a load, and a load sensing assembly comprising a load...
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7646270 |
Electrical switching apparatus, and yoke assembly and spring assembly therefor
A spring assembly is provided for a yoke assembly of an electrical switching apparatus including a housing, separable contacts enclosed by the housing, and an operating mechanism structured to open...
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7646269 |
Electrical switching apparatus, and conductor assembly and shunt assembly therefor
A shunt assembly is provided for an electrical switching apparatus including a conductor assembly having a load conductor and a movable contact assembly with a number of movable contact arms. The...
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7569784 |
Electrical switching apparatus, and housing and integral pole shaft bearing assembly therefor
A bearing assembly is provided for an electrical switching apparatus including a housing having at least one parting line and an exterior side, a stationary contact assembly disposed on one side of...
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7545245 |
Manual opening device and electrical switching apparatus employing the same
A manual opening device is for an electrical switching apparatus, such as a synchronous circuit breaker, including a housing having an opening, a plurality of pole mechanisms each comprising...
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7518076 |
Electrical switching apparatus, and charging assembly and interlock assembly therefor
An interlock assembly is provided for a circuit breaker charging assembly. The charging assembly includes a cam shaft, a latch mechanism, such as a D-shaft, a latch assembly, and a charging handle....
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7474179 |
Electrical switching apparatus, and movable contact assembly and contact spring assembly therefor
A contact spring assembly is provided for an electrical switching apparatus including a movable contact assembly and a stationary contact assembly having stationary electrical contacts. The movable...
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7391289 |
Systems, methods, and device for actuating a circuit breaker
Certain exemplary embodiments comprise a device comprising: a trip mechanism adapted to engage an operating mechanism of an alternating current circuit breaker, said trip mechanism comprising: a...
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7369022 |
Auxiliary switch sub-assembly and electrical switching apparatus employing the same
An auxiliary switch sub-assembly is provided for a telecommunication system circuit breaker including a housing having an opening, separable contacts inside the housing, and an operating mechanism...
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7336146 |
Moving contact carrier arrangement for a circuit breaker mechanism
A circuit breaker mechanism comprises a line terminal, a load terminal and a set of contacts between the terminals. A fixed contact is connected to the line terminal, and a moving contact is...
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7221246 |
Split rotor system and method with springs
A rotor assembly may include first rotor half, a first spring supported with the first rotor half, a second rotor half, and a second spring supported within the second rotor half, wherein the first...
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7217895 |
Electrical switching apparatus contact assembly and movable contact arm therefor
A contact assembly for a circuit breaker includes a fixed contact, a movable contact, and a movable contact arm. The movable contact arm includes a first end carrying the movable contact, a second...
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7189935 |
Contact arm apparatus and method of assembly thereof
A contact arm assembly having a contact arm module is disclosed. The contact arm module includes a set of contact arms, two side plates, a pivot pin, and a set of springs. Each contact arm includes...
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7148775 |
Contactor assembly for circuit breaker
A contactor assembly for a circuit breaker is disclosed. There is provided a contactor assembly, wherein stationary pins fixed to a rotary shaft and supporting one ends of springs and limit pins...
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7148774 |
Contact assembly
A circuit breaker contact assembly includes a line conductor having a folded back fixed contact end, a fixed contact mounted on the contact end, and a movable contact arm having an inner edge and...
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7145419 |
Contactor assembly for a circuit breaker
A contactor assembly for a circuit breaker comprises a first spring supporting pin, a cam plate, a second spring supporting plate, a link, and a spring. When a movable contactor is rotated without...
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7141751 |
Breaker for providing successive trip mechanism based on PTC current-limiting device
Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having...
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7138892 |
Method and apparatus for soft-fault tolerant circuit interruption
In accordance with one embodiment, the present technique provides a circuit interrupter. The exemplary circuit interrupter includes conductive spanner that completes an electrical pathway between...
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7102471 |
Electrical power breaker with a switching contact arrangement having a current loop
A power breaker includes a switching contact arrangement having a current loop in order to allow a force dependent on the current to act on the contact members. For this purpose, sections, which...
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7081596 |
Arc-quenching device for circuit breakers having double-break contacts
The present invention relates to an arc-quenching device for circuit breakers having double-break contacts for use in low-voltage distribution systems. Provided around a prechamber (41) is a...
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7034642 |
Blow open moving contact assembly for electric power switching apparatus with a very high current interruption rating
A moving contact assembly for a high-current interruption electric power switching apparatus has an inner carrier for the contact fingers that is rigidly held in a withstand position in an outer...
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7026894 |
Method and apparatus for magnetically tripping circuit breakers
An apparatus for interrupting an electrical short circuit current in an electrical distribution system having a plurality of phases is disclosed. The apparatus includes a housing, a plurality of...
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7009129 |
Switching device comprising a breaker mechanism
A switching device including housing and a breaker mechanism, the latter consisting of a trip lever, a catch, a displaceable contact arm and a deflection shaft that is fixed to the housing. The aim...
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7005594 |
Movable contactor assembly of circuit breaker
Disclosed is a movable contactor assembly of a circuit breaker capable of enhancing a current limiting function by maintaining a contact state between a movable contactor and fixed contactors in a...
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6989501 |
Current limiting circuit breaker
A multipole current limiting circuit breaker comprising an insulating enclosure that contains: a) for each pole, at least one fixed contact and at least one movable contact, which can be mutually...
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6985059 |
Circuit breaker handle block
A circuit breaker includes a crank for coupling a rotary arm breaker mechanism to the cradle. The crank has a protrusion which cooperates with a handle yoke to restrict movement of the operating...
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6975190 |
Contactor device of circuit breaker
A contactor device of a repulsion-type circuit breaker includes a first movable contactor with a first movable contact to be driven by an open-close mechanism; a fixed contactor; a second movable...
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6970059 |
Slot motor including legs engaging openings of circuit breaker housing and electrical switching apparatus employing the same
A circuit breaker includes a housing having first and second openings, with stationary and movable separable contacts disposed therein. An operating mechanism is disposed in the housing, is coupled...
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6969816 |
Switching arrangement for low-voltage circuit breakers
A switching arrangement for low-voltage circuit breakers with a high nominal current includes movable switching contacts arranged essentially on a moveable contact carrier. It further includes...
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6952149 |
Apparatus for interrupting a short circuit in a circuit breaker
A circuit breaker includes a housing, an operating mechanism, and a cassette. The cassette includes a separable current path having a movable contact arm, two arc receptors each disposed for...
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6924720 |
Circuit breaker
A circuit breaker includes a movable contact, a fixed contact, a switching device, a switching operation handle, and an over-current tripping device. The switching device has a switching lever...
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6924445 |
Low-voltage circuit breaker
A low-voltage circuit breaker, comprising: at least one first fixed contact, which is electrically connected to a terminal for connection to an electric circuit;a rotating moving contact, which...
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6879227 |
Switching contact arrangement
A switching contact includes a rocker-type leaf spring as a contact force spring in order to produce the contact force required for a contact lever A drag bearing thereof is disposed between the...
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6864765 |
Circuit breaker
A circuit breaker includes a housing; separable contacts mounted in the housing; and an operating mechanism for opening and closing the separable contacts. An overcurrent assembly is responsive to...
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6838962 |
Wire lug/arc vent barrier molded case circuit breaker
The present invention provides a wire lug arc vent barrier for protecting a wire lug in a molded case circuit breaker, with the circuit breaker having a housing with a terminal for a load...
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6828885 |
Circuit breaker and method for producing same
A circuit-breaker including a an interrupter chamber housing that includes a plastic material and houses an interrupter. The interrupter includes at least one stationary contact member, which, via...
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6819205 |
Current limiting low-voltage power circuit breaker
A low-voltage power circuit breaker includes a current-limiting opening of a mobile switching contact. The force-transmitting connection between the actuating shaft lever and the mobile switching...
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6791440 |
Apparatus for electrically isolating circuit breaker rotor components
An electrically isolating iso bearing for a circuit breaker is provided that comprises an inner surface, an outer surface, and a body extending therebetween, said inner surface comprising a pair of...
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