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7999641 |
Circuit breaker having reduced auxiliary trip requirements
A bimetal in a circuit breaker can deflect in a first direction or a second direction depending upon conditions. If the bimetal deflects in the second direction it can increase the force necessary...
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7986203 |
Multi-pole armature interlock for circuit breakers
A multi-pole circuit breaker and method include at least two breaker modules including circuit breakers therein. The circuit breakers include a moveable arm configured to connect and disconnect...
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7920037 |
Fault interrupter and load break switch
A fault interrupter and load break switch includes a trip assembly configured to automatically open a transformer circuit electrically coupled to stationary contacts of the switch upon the...
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7920365 |
Protective device with an auxiliary switch
The present invention is directed to a protective device that includes a housing having a plurality of line terminals, a plurality of load terminals, and a plurality of user-accessible terminals...
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7683745 |
Ground fault circuit interrupter device
A ground fault circuit interrupter device is described.
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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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7554781 |
Protective device with an auxiliary switch
The present invention is directed to a protective device that includes a plurality of line terminals, a plurality of load terminals, and a fault detection assembly coupled to the plurality of line...
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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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7538644 |
Multi-pole circuit breaker
Disclosed is a multi-pole circuit breaker. The multi-pole circuit breaker includes: a substrate disposed between the single pole breaking unit, spaced relatively far from the switching mechanism as...
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7518475 |
Electrical switching apparatus, circuit interrupter and method of interrupting overcurrents of a power circuit
A circuit interrupter includes a housing, separable contacts, and an operating mechanism including a latch. The operating mechanism opens the contacts responsive to actuation of the latch. A trip...
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7352265 |
Manual trip control method and arrangement for multiple circuit interrupters
A manual trip control method and arrangement is provided to manually trip a plurality of circuit interrupters. Specifically, where the circuit interrupters include magnetic-actuator-driven vacuum...
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7268654 |
Circuit breaker latching mechanism
A latching mechanism for a movable member mounted for movement between first and second positions. The latching mechanism includes a primary latching mechanism mounted for movement between a...
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7132912 |
Moving contact unit for a contact arrangement in a circuit breaker
The moving contact unit (10) is intended for a contact arrangement in a circuit breaker and contains a contact mount (13) and a contact piece (11, 111, 112), which is held by the contact mount...
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6348847 |
Control device for breaker
A making operation preventing device 130 has a releasing trigger 19 for retaining, via a releasing latch 18, a breaking lever 36 to which a torque in a counterclockwise direction is applied by an...
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5872495 |
Variable thermal and magnetic structure for a circuitbreaker trip unit
A thermal and magnetic trip unit for a multi-pole circuit breaker includes a thermal structure having a bimetallic element and one or more heater elements. Each of the heater elements and a portion...
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5142259 |
Molded case circuit breaker with low friction latch arrangement
The secondary latch of a molded case circuit breaker latching arrangement is formed from a latching pin assembly with a solid metal latching sphere rotatably mounted at one end thereof. The...
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5023582 |
Molded case circuit breaker compact latch asssembly
A molded case circuit breaker employs a multiple latch assembly for maintaining the circuit breaker operating mechanism in a closed condition. The multiple latch assembly includes three separate...
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5014025 |
Actuator-accessory reset arrangement for molded case circuit interrupter or electric switch
An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured...
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4740768 |
Manual trip operator for molded case circuit breaker
A manually operated trip operator is inserted within a recess formed in a molded case circuit breaker cover, and extends down within the breaker case to interact with the circuit breaker trip bar....
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4731692 |
Circuit breaker trip solenoid assembly
An electronic circuit breaker having a trip solenoid assembly. The trip solenoid assembly includes a permanent magnet, plunger, trip coil and assist coil and is positioned adjacent to a phase...
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4713636 |
Circuit-breaker
A circuit-breaker which includes a housing, an actuator device positioned in generally upstanding relationship to and centrally of the housing, thermal trippers and magnetic trippers mounted on one...
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4679018 |
Circuit breaker with shock resistant latch trip mechanism
A circuit breaker apparatus characterized by a molded case containing a circuit breaker structure for opening and closing a circuit which structure comprises a releasable lever operable between...
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4639561 |
Mechanical time delay mechanism
A mechanical time delay mechanism is shown which provides a predetermined time delay between the movement of the moving contact blade on a circuit breaker and the activation of a switch. The...
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4639701 |
Circuit breaker with interface flux shunt trip
A circuit breaker characterized by a circuit breaker structure having separable contacts and a releasable mechanism which mechanism is retained in untripped position by a latch including a...
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4550300 |
Latch release mechanism for molded case electric circuit breakers
High speed trip facility is provided within a molded case circuit breaker used within industrial applications. The movable contact arm is pivotally arranged to open independently of the trip...
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4532486 |
Remote controlled circuit breaker
A low voltage circuit breaker in a moulded case comprises a breaker unit (10) and a remote control unit coupled to it that controls the swing of a bistable movable contact (22) housed in the...
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4529951 |
Remote control system circuit breaker
A remote control system circuit breaker which latches a trip link and a latch link by the spring force of return springs so that on- or off-hold of a movable contactor supported from the latch link...
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4524339 |
Contact control arrangement for high amperage molded case circuit breaker
A pair of toggle links in a high amperage molded case circuit breaker are driven over center in response to the discharge of a closing spring for pivoting a plurality of blades and closing the...
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4344054 |
Latch assembly for static trip circuit breakers
A pivotally mounted primary latch lever carries a latch pin for latchingly engaging a cradle to sustain it in a reset position against the bias of the breaker mechanism operating springs. An...
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4342974 |
Multipolar type circuit breaker
A multipolar type circuit breaker has a plurality of breaker element assemblies corresponding to AC source pole number. Each assembly comprises a contact operating mechanism for ON and OFF...
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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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3928826 |
Circuit breaker with improved tripped latch means
A circuit breaker with a trip latch mechanism characterized by relatively movable contacts and a latch member releasable to effect automatic opening of the contacts. The latch member being retained...
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3786382 |
COMPACT CIRCUIT BREAKER
A compact electric circuit breaker with high current carrying ability is disclosed. This circuit breaker utilizes compact means to achieve high contact pressure necessary for high current carrying...
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3731239 |
EXCESS CURRENT SWITCH
An excess current switch has a thermal and/or electromagnetic trip, a pivotally mounted actuating member, a bell crank connecting the actuating member with a movable contact carrier and a locking...
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3671890 |
MANUALLY OPERABLE MOLDED CASE CIRCUIT BREAKER WITH SPECIAL TRIP TESTING MEANS
A molded case circuit breaker with manually operable ON-OFF handle means, and a separate rotatable trip testing button in an opening in the cover of the breaker casing and flush with the surface...
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3430164 |
CIRCUIT BREAKER MECHANISM
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3421129 |
MULTIPOLE CIRCUIT BREAKER WITH SLIDING CONTACT ACTUATOR AND SWINGING LATCH PLATE
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3214537 |
Electrical circuit protector having auxiliary indicating switch contacts
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3179768 |
Circuit breaker with mechanically isolated trip mechanism
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3162740 |
Circuit breaker with latching type auxiliary tripping means
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3105129 |
Recloser mechanism
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3098911 |
Interconnected circuit breakers
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3084236 |
Electric circuit breaker
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2994753 |
Circuit breaker
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2977439 |
Automatic recloser
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2956133 |
Multipole circuit breaker
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2917602 |
Circuit breaker
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2843699 |
Safety lock-out attachment for automatic reclosing circuit breakers
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2828384 |
Circuit breaker
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