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Document Title |
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7586395 |
Electrical switching apparatus and trip actuator assembly therefor
A trip actuator assembly is provided for a circuit breaker including a housing having a mounting surface, separable contacts enclosed by the housing, and an operating mechanism structured to open...
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7558034 |
Bi-directional ground fault circuit interrupter
The present invention relates to a family of resettable circuit interrupting devices that eliminates the need to rewire a resettable circuit interrupting device after it is installed and powered up...
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7541899 |
Multi-pole circuit breaker and apparatus for preventing deformation of driving shaft thereof
Disclosed are a multi-pole circuit breaker and an apparatus for preventing deformation of a driving shaft thereof. The multi-pole circuit breaker includes: a plurality of single pole breaking units...
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7515022 |
Circuit breaker common trip lever
A trip lever for a shared tripping device, wherein the shared tripping device is structured to operatively couple at least two circuit breakers, a primary circuit breaker and a secondary circuit...
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7268652 |
Cradle assembly with opening assist mechanism and electrical switching apparatus employing the same
An opening assist mechanism is for the cradle assembly of a circuit breaker including a housing enclosing separable contacts, and an operating mechanism for opening and closing the separable...
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7130173 |
Direct force armature for a trip assembly
The invention relates to a trip assembly for use in an electro-mechanical device, such as a circuit breaker. The trip assembly is used for interrupting the flow of current upon the detection of...
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6366187 |
Support and alignment structure for magnetic trip device
A plunger assembly support structure for a molded case circuit breaker magnetic trip mechanism for aligning a trip mechanism plunger assembly. The plunger assembly support structure includes a base...
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6353377 |
Trip assembly for circuit breakers with shock absorbing components
The present invention provides a spring for a tripping mechanism in a circuit breaker for connection to a circuit. The tripping mechanism has a first component which is accelerated along a...
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6317019 |
Low-voltage multipole circuit breaker with high electrodynamic resistance, whereof the pole shaft is arranged in the compartment housing the poles
A low-voltage multipole circuit breaker with high electrodynamic strength comprises a case made of insulating material, subdivided into a front compartment housing an operating mechanism commanding...
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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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6064012 |
Common trip bar and trip levers for electric circuit breakers
A crossbar or trip bar for spanning the poles of a multi-pole electric circuit breaker and a plurality of trip levers each having a slot formed by interior walls with a plurality of tapered ribs...
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6031437 |
Switch with electromagnetic command
A switching apparatus including an electromagnetic command device fitted with a magnetic circuit made up of a main circuit polarized by a permanent magnet and linked to a depolarizing coil and...
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5912604 |
Molded pole automatic circuit recloser with bistable electromagnetic actuator
An electromagnetic actuator and an automatic recloser incorporating such actuator are disclosed. The actuator is shown to include a housing, a permanent magnet member, a coil, an armature, mounted...
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5910757 |
Phase barrier for use in a multiphase circuit breaker
A method and apparatus for interrupting the flow of electrical current in a multiphase circuit path between at least one source and at least one load including a circuit breaker having an...
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5898351 |
Multipolar circuit breaker
A multipolar circuit breaker is provided for securely operating tripping sections of other poles when the tripping section of any pole operates. In the case of a first embodiment, a protrusion 5...
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5831499 |
Selective trip unit for a multipole circuit breaker
A selective magnetic trip unit comprises a fixed magnetic armature located facing a movable magnetic armature and a damping device with a blade mounted on the movable magnetic armature. The damping...
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5557082 |
Circuit breaker with common trip mechanism
A circuit breaker mechanism is provided with a U-shaped tripping lever which has a base and first and second parallel legs. The tripping lever is arranged around the magnetic frame of the circuit...
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5124678 |
Interrupter actuator
An interrupter actuator comprising a frame, a pivot lever mounted on the frame for pivotal movement relative thereto about a first axis and between first and second positions, an operating lever...
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5057806 |
Crossbar assembly
A crossbar assembly is formed from an elongated metal bar. A pair of contact arm carriers are slid onto the metal bar and welded in place. Molded electrically insulated sleeves are sliding received...
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4882557 |
Multipole circuit breaker system with differential pole operation
A multiple circuit breaker system wherein each single pole breaker within the multiple breaker system have very similar structure and dimensions, except that at least one of the breakers (e.g. the...
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4713635 |
Multi-phase circuit breaker with interphase barrier retention
A multi-phase circuit breaker characterized by a plurality of phase compartments separated by spaced barriers, a circuit breaker structure within compartment and having separable contacts, manually...
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4679016 |
Interchangeable mechanism for molded case circuit breaker
An interchangeable operating mechanism assembly for molded case circuit breakers having a detachable movable contact arm and trip unit assembly allows the same mechanism assembly to be employed...
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4347488 |
Multi-pole circuit breaker
An arrangement is provided for interconnecting a set of two or more circuit breakers such that tripping of one will cause concurrent tripping of the others. A coupler adapted to be placed in a...
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4288768 |
Electrical full protection circuit breaker
An electrical full protection circuit breaker for interrupting a current circuit in response to an overload current, or a short circuit current, or in response to an earth leakage or fault current,...
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4179675 |
Trip bar means subassembly
A multi-pole circuit breaker is provided with a trip bar subassembly including a molded bar having integrally formed bearings defining a pivot axis for the subassembly remote from the bar. The bar...
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4166988 |
Compact three-pole circuit breaker
A compact three-pole circuit breaker is modularly constructed utilizing two identical operating mechanisms in controllably articulating three movable contact arms. The operating mechanisms are...
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4128822 |
Polyphase circuit breaker having improved trip crossbar assembly
The following specification describes a circuit breaker trip crossbar having diverging radial surfaces receiving a tapered rail therebetween. The rail extends from the bottom edge of the...
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4123734 |
Circuit breaker with improved latch mechanism
A three pole molded case circuit breaker including a push-to-trip button, a flux transfer shunt trip mechanism, an undervoltage trip mechanism, and an improved latch mechanism. The latch mechanism...
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4066989 |
Trip unit tie bar having integral flexibly connected links
A multi-pole circuit breaker is provided with a molded common trip bar means including a bar having integrally formed bearings defining a pivot axis remote from the bar, integrally formed links...
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4042894 |
Multi-pole circuit breaker system with common trip means
A multi-pole circuit breaker system includes a plurality of individual circuit breakers and at least one tripping action transfer device disposed between adjacent circuit breakers. The tripping...
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3946345 |
Narrow multi-pole circuit breaker having inertia actuated overtravel for latch release
A plurality of single pole circuit breakers stacked side-by-side are interconnected by a tie rod connecting the magnetic armatures of their respective instantaneous trip means. When one pole is...
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3786380 |
MULTI-POLE CIRCUIT BREAKER
A multi-pole circuit breaker is disclosed which allows selective manual making and breaking of contacts within the breaker and automatic simultaneous breaking of all breaker contacts whenever a...
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3774126 |
MULTI-POLE TYPE FUSELESS CIRCUIT BREAKER
A multi-pole type fuseless circuit breaker comprising a molded casing made of insulating material, a plurality of switching mechanisms mounted in the casing and having a common manually operable...
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3771081 |
INTERPOLE TRIP SYSTEM FOR MULTI-POLE CIRCUIT BREAKER
A multipole circuit breaker having an individual spring powered overcenter toggle operating mechanism with a releasable cradle is provided with an interpole trip system in which there is a common...
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3742401 |
MULTI-POLE LATCH SYSTEM HAVING MEANS TO DEFEAT SINGLE POLE LATCHING
A multi-pole circuit breaker having an individual spring powered overcenter toggle operating mechanism with a releasable cradle is provided with a defeater means, independent of the cradle latches,...
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3530413 |
FORCE MULTIPLYING MEANS FOR CIRCUIT BREAKER TRIP UNIT
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3526735 |
REPEATING CIRCUIT INTERRUPTER
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3517354 |
HIGH SENSITIVITY MAGNETIC TRIP UNIT
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3460075 |
CIRCUIT BREAKER WITH IMPROVED LATCH AND TRIP STRUCTURES
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3436695 |
ELECTRIC CIRCUIT BREAKER WITH SHUNT TRIP COIL
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3422381 |
MULTI-POLE CIRCUIT BREAKER WITH COMMON TRIP BAR
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3412349 |
Current-limiting electric circuit breaker
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3353127 |
Multipole circuit breaker with individual breakers coupled by slides therebetween
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3329912 |
Multipole circuit breaker with interconnected toggle locks and contact members
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3290627 |
Circuit breaker
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3258561 |
Circuit breaker having improved trip unit
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3233063 |
Multi-pole circuit breaker
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3222475 |
Operating mechanism for multipole electrical circuit breaker
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3214556 |
Circuit breaker operating mechanism for rapid contact opening and closing
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3211955 |
Circuit interrupting device
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