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7583170 |
Switching device with switch latch
There is described a switching device whose disconnection cause can be identified, and a method for displaying the disconnection cause of a switching device. The switching device has a switch latch...
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7532096 |
Auxiliary switch including movable slider member and electric power apparatus employing same
A non-contact auxiliary switch for a circuit breaker includes a target having first and second positions corresponding to open and closed positions of separable contacts. A non-contact sensor is...
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7411766 |
Circuit interrupting device with end of life testing functions
The present invention provides a circuit interrupting device which comprises a novel reset mechanism to allow a user to test whether the device is wired properly. The novel reset mechanism includes...
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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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7358838 |
Electrical switching apparatus and trip indicator therefor
A trip indicator is for a circuit breaker having a housing including first and second openings, separable contacts and an operating mechanism having an operating handle protruding from the first...
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7280013 |
Self-contained breaker reset system and method
A system and method for resetting a tripped circuit breaker are provided. The system includes a monitoring mechanism for monitoring a state of at least one electrical circuit breaker and for...
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7135945 |
Trip indicator and electrical switching apparatus employing the same
A trip indicator is for a circuit breaker having a housing including first and second openings, separable contacts and an operating mechanism having an operating handle for opening and closing the...
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7126445 |
Arc-fault detecting circuit-breaker system with status indicator structure
An arc-fault detecting circuit-breaker system is used in conjunction with a protected electrical circuit whose current flow is to be interrupted upon the occurrence of an overcurrent fault or an...
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7113062 |
On-board circuit breaker with reset enable mechanism
An on-board circuit breaker that includes a push-button that enables the circuit breaker to be reset by depressing it, a power supply terminal and distribution terminal, two breaking contacts, and...
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7095302 |
Rotating display device and electrical apparatus employing the same
A rotating display device displays a value in a variable viewing orientation. The value is received from an electrical apparatus, such as a circuit breaker, having a first port. The rotating...
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7064635 |
Circuit breaker including alarm interface lever
A circuit breaker including a housing, separable contacts, a cradle rotatably mounted within the housing, an alarm switch mounted within the housing, and an interface lever disposed between the...
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7034644 |
Non-contact auxiliary switch and electric power apparatus incorporating same
The auxiliary switch includes a non-contact sensor, such as a Hall effect device, that is switched by the condition of a magnetic field. The magnetic field condition is effected by a movable...
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7023303 |
Actuator for auxiliary switch and circuit breaker incorporating the same
A U-shaped accessory actuator clip that snaps onto the crossbar of a multipole circuit breaker is integrally molded of a compliant material with a flexible finger that actuates/deactuates an...
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6943652 |
Signal accessory for a molded case circuit breaker
A signal accessory for a molded case circuit breaker, with the circuit breaker ( 10 ) having an operating mechanism ( 40 ) with a cradle pin ( 41 b ), a cross bar ( 55 ) and a trip bar ( 54 ) and a...
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6933815 |
Electromagnetic relay
An electromagnetic relay, which is excellent in assemblability and includes an indicator which can be operated smoothly, is provided. A coil block and a contact switching mechanism are provided on...
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6903636 |
Shock resistant auxiliary switch mechanism and circuit breaker
An improved shock resistant auxiliary switch mechanism for a circuit breaker includes a common conductor having a conduction plate that is slidably translatable between electrically conductive...
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6903635 |
Circuit breaker interface mechanism for auxiliary switch accessory
An assembly for interacting with a circuit breaker operating mechanism of a circuit breaker including a housing and a pair of contacts within the housing, the operating mechanism arranged to...
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6903289 |
Circuit breaker employing an illuminated operating handle
A circuit breaker includes a housing having an opening, separable contacts within the housing, and an operating mechanism for opening and closing the separable contacts. The operating mechanism...
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6897747 |
Circuit breaker
A microprocessor-based circuit breaker includes a removable chip that defines the current rating or ground fault current for the breaker. The breaker includes mechanical components that trip to...
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6867670 |
Circuit breaker with auxiliary switches and mechanisms for operating same
A subminiature circuit breaker is equipped with an arc fault auxiliary switch actuated by the arc fault trip motor through an indicator actuator that also deploys a pop-up arc fault indicator. An...
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6864447 |
Circuit breaker empolying illuminating indicators for open and closed positions
A circuit breaker includes a housing, a pair of separable contacts within the housing, and an operating mechanism having an operating handle for opening and closing the separable contacts. A...
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6819206 |
Circuit breaker
A circuit breaker includes a switching mechanism, a manual operating handle connected to the switching mechanism, and an instantaneous tripping device for detecting a short circuit current and...
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6803535 |
Circuit breaker with a visual indication of a trip
A trip indicator of a circuit breaker is set to the tripped position through engagement by the cradle, which is unlatched by the trip mechanism. Even though the cradle is automatically reset by a...
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6788172 |
Device for controlling the closing of a power circuit breaker
A device is for controlling the closing of a power circuit breaker according to operational parameters. The device includes an indication element for indicating the readiness for closing and a...
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6778048 |
Circuit breaker interface mechanism for bell alarm switch
An assembly for interacting with a circuit breaker operating mechanism of a circuit breaker including a housing and a pair of contacts within the housing, the operating mechanism arranged to...
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6674348 |
Switch relay with switching status display
A switch relay with a switching status display is described, in which a display element is in operative connection with a switch contact of the switch relay and displays the switch positions in a...
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6642820 |
Protective switch
A protective switch includes a switch housing, a switching mechanism for closing and opening a movable contact, a tripping mechanism instantaneously pulling a plunger upon detection of an instant...
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6633210 |
Switch lever captivation device
A securing member for use in a switch assembly of a circuit breaker includes a support post and a fastener. The securing member assists in mounting an alarm switch onto a bracket of the switch...
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6542056 |
Circuit breaker having a movable and illuminable arc fault indicator
An aircraft circuit breaker includes a housing; separable contacts mounted in the housing; a latchable operating mechanism including a latch member which when unlatched opens the separable...
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6522228 |
Circuit breaker including an arc fault trip actuator having an indicator latch and a trip latch
A circuit breaker includes a housing; separable contacts mounted in the housing; a latchable operating mechanism including a latch lever which when released opens the separable contacts; and an...
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6373355 |
Switch with contacts which can be seen through a window
Switch with at least one set of interacting contacts which is accommodated in the switch housing and can be seen through a transparent window. The contacts are arranged on the free ends of...
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6362711 |
Circuit breaker cover with screw locating feature
A molded circuit breaker cover for providing access to a calibration screw of a thermal trip unit is disclosed. The cover includes an exterior surface having an opening disposed therein and a...
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6351199 |
Position sensor for latching solenoid valve
The invention is directed to an improved position sensor for a latching solenoid ( 15 ). In the preferred embodiment, the solenoid has a permanent magnet ( 16 ), a coil ( 18 ) adapted to be...
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6255615 |
Multiple contact switch
A vacuum switch having a fixed stationary and moveable contact that functions very much like a conventional vacuum circuit interrupter. In addition, an annular stationary contact is positioned on...
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6246304 |
Trip indicating circuit breaker
A circuit breaker having an external trip indicator, having a circuit breaker housing, a trip mechanism within the housing, sensing a trip condition and being responsive thereto to mechanically...
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6229414 |
Make-and-break mechanism for circuit breaker
In a make-and-break mechanism for use in a circuit breaker, an alarm output plate 56, which is disposed so as to be slidable in the vertical direction along the frame (cover plate) 27 of the...
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6222433 |
Circuit breaker thermal magnetic trip unit
A thermal-magnetic trip unit, suitable for use in a circuit breaker, for eliminating the requirement for latching surfaces while still providing the additional force and motion required to trip the...
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6130390 |
Contact position indicator for an industrial-rated circuit breaker
A circuit breaker contact position indicator assembly includes an indicator lever that interacts with the circuit breaker contact carrier through a indicator lever bell crank and a contact arm bell...
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6107902 |
Circuit breaker with visible trip indicator
A circuit breaker including a housing having a window, a line terminal and a load terminal, and a circuit trip assembly. The circuit trip assembly includes a rotatable cradle, a moveable armature...
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6104266 |
Circuit breaker with trip indication arrangement
A visible trip indication arrangement for a circuit breaker. The visible trip indication arrangement comprises a viewing window forming a part of the breaker housing, the viewing window including...
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6104265 |
Miniature circuit breaker with multipurpose auxiliary member
Miniature circuit breaker apparatus is taught which includes side-by-side ganged cases where one of the ganged cases includes the main circuit breaker operating mechanism and contacts and where the...
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5982258 |
Tripping device for a circuit breaker equipped with an electrical fault indication
The trip bar is sub-divided into a first actuating part associated to the trip rod of the actuator and a second actuating part operating in conjunction with the indicating device. A mechanical...
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5939991 |
Circuit breaker with current level indicator
A circuit breaker has line and load terminals and a mechanism which indicates the magnitude of current flowing through the circuit breaker. The mechanism includes a current sensing resistor coupled...
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5936535 |
Circuit breaker bell alarm accessory
An air circuit breaker bell alarm accessory interacts with the circuit breaker operating mechanism to provide local target indication as well as remote signal indication of the separation of the...
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5923261 |
Circuit breaker bell alarm accessory with automatic reset
An air circuit breaker bell alarm accessory interacts with the circuit breaker contact position indicator to provide local and remote indication of the occurrence of a circuit interruption. A drive...
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5917391 |
Transient voltage surge suppressor having a switch with overtravel protection
A transient voltage surge suppressor (TVSS) receptacle having front and rear matable casings including a plurality of through openings for receiving the blades of an electrical plug; an electrical...
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5914664 |
Optically sensing auxiliary switch
An auxiliary switch provides an output or feedback signal indicative of the position or logical state of a contactor, disconnect or other principal device to which it is coupled. The switch is...
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5914663 |
Detection of subsidence current in the determination of circuit breaker status in a power system
The apparatus detects subsidence current from unfiltered as well as filtered secondary current values in the current transformer. A lack of zero crossings during a predetermined period is a...
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5907267 |
Photoelectric auxiliary switch for electromagnetic contactor
Photoelectric reflective object sensors are mounted in an exteriorly mounted auxiliary switch case to detect a member on a movable contact assembly of the contactor to produce logic level output...
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5906271 |
Means of remote charge indication for high ampere-rated circuit breakers
Remote indication of the charge state condition of the circuit breaker closing springs is provided by a remote indicating unit. The indicating unit interfaces with the circuit breaker closing...
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