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7598833 |
Electrical switching apparatus, and arc chute assembly and arc hood assembly therefor
An arc chute assembly is for an electrical switching apparatus including a housing and an arc hood coupled thereto, the arc hood being structured to exhaust arc gases from the housing. The arc...
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7521645 |
Arc plate, and arc chute assembly and electrical switching apparatus employing the same
An arc plate for a circuit breaker arc chute assembly includes first and second portions coupled to opposing sidewalls of the arc chute assembly, first and second ends, and a throat portion between...
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7495190 |
Electrical switch
An electrical switch is disclosed. The switch includes at least one switching contact which is held against the prestressing force of a contact force spring on a moving contact mount, and an arc...
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7488915 |
ARC baffle, and ARC chute assembly and electrical switching apparatus employing the same
An arc baffle for an arc chute assembly of a circuit breaker includes a first baffle member disposed at or about the second end of the arc chute assembly and including a plurality of first venting...
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7459652 |
Switchgear device comprising an arc chute of reduced size
Electric switchgear device comprising at least one electric pole-unit comprising a stationary contact part made of conducting material, a movable contact part and an arc chute. The arc chute...
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7439469 |
Electric switching device comprising an arc-quenching unit
An electric switching device, designed to carry a low-voltage, in particular a circuit-breaker or contactor, having at least one arc-quenching unit ( 16;18 ) is provided. Connection contacts ( 8 )...
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7371987 |
Switching device
The invention relates to a switching device with a switching structure ( 1 ), which includes a cage assembly ( 21 ) having two opposite first sidewalls ( 5 ) and a bottom wall ( 6 ) integrally...
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7220933 |
Arc quenching device for circuit breakers
The present invention specifies an arc quenching device having improved current limitation and reduced heat losses, in the case of which a moving contact piece ( 31 ) is not subject to increased...
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7202436 |
Secondary arc chute and electrical switching apparatus incorporating same
A secondary arc chute is for an electrical switching apparatus including a housing, a pair of separable contacts enclosed within the housing, and a primary arc chute disposed proximate the...
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7186941 |
Arc extinguisher assembly for molded case circuit breaker
An arc extinguisher assembly is provided for a mould cased circuit breaker capable of reducing time for arc extinguishing and preventing contacts from being damaged due to a back flow of an arc. To...
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7094986 |
ARC chute assembly
The arc plates of an arc chute assembly for a circuit breaker are supported in spaced, stacked relation by a structural shell molded of a gas evolving resin. Generation of arc gases, that cool the...
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7091438 |
Circuit breaker with improved arc extinction system
An improved circuit breaker includes an arc extinction system having one or more insulators that generates a desirable gas in the presence of an arc. The exemplary circuit breaker includes...
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7034242 |
Arc chute and circuit interrupter employing the same
A circuit interrupter arc chute includes first and second support portions, an exit portion supported by the support portions, and a plurality of arc plates supported by the support portions. The...
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6917269 |
Low-voltage circuit breaker with an electric arc extinction system
An electric arc extinction chamber system, especially for low-voltage circuit breakers of very high nominal current intensities, wherein parallel electric arc extinction chamber inserts are...
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6844514 |
Arc extinguisher with an attachment for low voltage switchgear
An arc extinguisher for low voltage switchgear, switching in air, includes a universally applicable variable attachment for adjustment of the arc extinguisher chamber to meet increased demands. The...
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6825431 |
Arc chamber for low-voltage circuit breakers
An arc chamber for low-voltage circuit breakers, whose particularity consists of the fact that it comprises: multiple substantially U-shaped metallic plates; an enclosure made of insulating...
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6794595 |
Electrical switchgear apparatus comprising an arc extinguishing chamber equipped with deionizing fins
A circuit breaker comprises a pair of separable contacts arranged in an opening volume. A plurality of flat de-ionization fins are arranged inside an arc extinguishing chamber opening out onto the...
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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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6750746 |
Electromagnetic switching device, especially contractor, with a contact bridge support lock
An electromagnetic switching device, especially a contactor, includes a base, an arc chamber removable from the base, a contact bridge support and a spring-loaded locking element. The contact...
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6717090 |
Arc quenching configuration for an electrical switching device
An arc quenching configuration for an electrical switching device has an arcing chamber in which an arc is produced between a stationary contact piece and a moving contact piece during a switching...
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6703575 |
Arc-extinguishing system for a contact switching apparatus
An arc-extinguishing system for a contact switching apparatus having a plurality pieces of grid plate for arc extinction arranged outside the contact switching apparatus so as to be substantially...
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6700087 |
Arc chute assembly
An arc chute including a first side wall having a plurality of holes, a second side wall having a plurality of holes and spaced apart from the first side wall, and a plurality of arc chute plates...
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6624373 |
Arc stack assembly for a circuit breaker
A circuit breaker for interrupting the flow of current upon the detection of excess current or temperature is provided that contains an arc plate assembly which includes a pair of insulative...
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6518530 |
Current-limiting contact arrangement
A current-limiting contact arrangement includes a conductor rail including a stationary contact and including two current loops extending at opposite sides of the conductor rail in respective...
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6313425 |
Cassette assembly with rejection features
A cassette assembly for rotary contact circuit breakers utilizing a first electrically insulative cassette half piece and a second electrically insulative cassette half piece which are arranged to...
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6288354 |
Switching device with an arc extinguishing device
A switching device with an arc extinguishing device includes filigree-shaped arc splitters of an arcing chamber to be mounted and fixed in an operationally reliable manner. Branches and bases of...
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6265685 |
Switchgear apparatus contact assembly including slot and ferromagnetic insert for enhancing arc extinguishing characteristics
A switch comprises a long, slender stationary contact means and a movable contact means moving between an open position and a closed position. The contact zone of the contact means is separated...
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6248970 |
ARC chute for a molded case circuit breaker
A circuit breaker (10) including an electrical arc extinguishing apparatus (105). The electric arc extinguishing arc apparatus (105) includes a first sidewall (106) in a spaced relationship with...
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6222147 |
Circuit breaker arc exhaust baffle with variable aperture
An improved exhaust baffle for a circuit protective device such as a circuit breaker utilizes material having elastomeric characteristics to provide for variable apertures where the cross-sectional...
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6222146 |
Arc extinguishing chamber for low voltage power switches
An arc quenching chamber for low-voltage circuit breakers has a quenching chamber enclosure and a quenching chamber cover, which is detachably attached to the quenching chamber enclosure by...
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6207916 |
Electric arc explosion chamber system
An arcing chamber system having one or more chamber bodies connected in series, wherein one or more arcing chamber modules, are arranged in each chamber body is present. A plurality of arcing...
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6191377 |
Electromagnetic switching device with arcing chambers
An electromagnetic switching device, in particular a high capacity contactor, includes switch contacts which are arranged inside interrupter chambers formed by an interrupter chamber housing. Also...
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6100491 |
Electric current switching apparatus having an arc extinguisher with an electromagnet
An electric switch has an arc extinguishing mechanism that includes a plurality of splitter plates located adjacent to the switch contacts. An electromagnet coil is connected between one of the...
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5945650 |
Polyphase rotary switch including arc chamber system with arc grids, line shields and baffles
A multi-phased switch support base including a molded top cover and a molded bottom base each having interior and exterior walls which divide the interiors. When assembled together the base is...
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5898152 |
ARC chute assembly for circuit breaker
An arc chute assembly for a circuit breaker includes a plurality of U-type grids respectively including an engagement protrusion extended from each side thereof, the engagement protrusion having a...
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5889249 |
Tightly joined wire mesh deionizing device for a current breaker
The invention relates to a gas deionization device and an arc extinguishing chamber notably for a multipole low voltage circuit breaker with a molded case. A porous shield comprising one or more...
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5866864 |
Electric current switching apparatus with arc spinning extinguisher
An electric arc extinguishing mechanism is provided for an electric current switching apparatus of the type having a pair of contacts which selectively engage to complete an electric circuit. The...
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5861596 |
Dual baffle apparatus for electrical switching device
A baffle for use in a circuit breaker includes a first baffle mechanism and a second baffle mechanism. Each of the first and second baffle mechanisms includes a base, a plurality of elongated...
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5763847 |
Electric current switching apparatus with tornadic arc extinguishing mechanism
A contactor for switching electric current has a stationary contact and a movable contact which when driven by a solenoid moves into and away from abutment with the stationary contact. An arc...
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5608198 |
Circuit breaker arrangement for protection against electrical arcs
An arrangement in an electrical switching device for protection against electrical arcs comprises a tripping mechanism, a stationary contact carrier, a movable contact carrier, an exhaust vent, an...
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5589672 |
Circuit breaker with arc quenching device and vent
A circuit breaker is formed of a stationary contact member bent back into a U-shape and having a stationary contact at a bent back portion thereof, a moving contact member situated adjacent to the...
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5539170 |
Arc grid plate for electrical switching device
An arc grid plate for an arc box of a contactor includes a conductive plate having two sides, a rear edge, and a front arc edge. The sides are slidable within a pair of grooves of the side walls of...
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5103198 |
Instantaneous trip device of a circuit breaker
A limiting circuit breaker with a molded case comprises an overpressure actuator which, when an overpressure occurs in the arc extinguishing chamber due to the action of an arc drawn by the...
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5073764 |
Current limiting apparatus
In a twin-contact type current limiting apparatus in which two contacts are electrically connected in series with each other, each of movable contact arms (23a, 23b) is extended in substantially...
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4992634 |
Medium tension gas blast circuit breaker
A medium tension circuit breaker having a dielectric blast gas, the circuit breaker comprising a cylindrical insulating casing filled with dielectric gas under pressure, a fixed main contact, a...
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4959514 |
Fusible electric switch
A Fusible electric switch is herein described for increased ratings within industrial electrical distribution circuits by the provision of an arc exhaust gas controller. The arc gas controller...
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4843194 |
Air break contactor
Access to the arc chutes of a contactor is provided by mounting the arc chutes along with insulating plates on the top surface of a frame which supports the parts of the contactor. A track is...
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4827233 |
Miniature circuit breaker with improved longivity
A circuit breaker device has a chamber in which is disposed a single break contact system using low contact resistance material mounted on movable and stationary supports arranged in a loop...
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4778959 |
Fused disconnect switch
A fused disconnect switch within a metal enclosure provides rapid connection line and load stabs with a minimum degree of arcing. The operating handle is arranged within the switch enclosure and is...
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4764650 |
Molded case circuit breaker with removable arc chutes and disengageable transmission system between the operating mechanism and the poles
A sub-assembly comprising a contact finger support cage and a connection pad of each pole is securedly united to an intermediate insulating partition of the case by a bracket and screw fixing...
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