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US20150055260 Fast Switch Fault Current Limiter  
A fault current limiter circuit including a fast switch fault current limiter (FSFCL) and a voltage control reactor (VCR) operative to conduct load current during a steady state operation and...
US20140043116 Switch Linkage Mechanism and Large Current Breaker Switch Using The Same  
A switch linkage mechanism includes a self-holding solenoid, at least a linkage shaft, at least a twist bar and at least a copper strip set. When the twist bar is at a circuit-closed position, the...
US20080012668 Redundant trip activation  
A redundant trip activation scheme whereby at least one pre-trip condition must be satisfied before a trip signal is sent to a trip solenoid of a motor circuit protector. To provide a layer of...
US20130187735 ELECTRICAL SWITCH  
An electrical switch, in particular an electrical circuit breaker, is disclosed including an overcurrent trip device which cuts off the flow of current through the switch in the event of an...
US20110084785 CIRCUIT INTERRUPTING DEVICE WITH REVERSE WIRING PROTECTION  
Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The...
US20080122563 INSTANTANEOUS TRIP MECHANISM FOR MOULD CASED CIRCUIT BREAKER  
An instantaneous trip mechanism for a mould cased circuit breaker in a trip mechanism of a mould cased circuit breaker, the instantaneous trip mechanism capable of easily adjusting a trip current...
US20140035372 REMOTE CONTROL AND OPERATION OF LV DISTRIBUTION NETWORKS  
A Low Voltage, “LV”, network automation system is provided which enables utilities to remotely identify location of LV faults on their networks, isolate these faults and re-energising the healthy...
US20090058574 Electronic circuit breaker and method  
An electronic circuit breaker has an input, an output, and a switch electrically connected between the input and the output. The electronic circuit breaker monitors the energy dissipated by the...
US20120001707 OVERLOAD RELAY SWITCH WITHOUT SPRINGS  
The disclosed concept relates to an overload relay and, more specifically, to an overload relay switch having a reduced number of components and less complex components. The reduced number of...
US20100026426 Impact Solenoid Assembly For An Electrical Receptacle  
An impact solenoid assembly for an electrical receptacle includes an armature having first and second ends. A resilient member is disposed between a latch and the second end of the armature. The...
US20120256712 INCORRECT-CIRCUIT DEACTIVATION DEVICE OF MAGNETIC GFCI OUTLET  
An incorrect-circuit deactivation device of a magnetic GFCI outlet includes an electromagnetic coil seat, a magneto-conductive core driven by the electromagnetic coil seat to displace, and two...
US20140347149 Air Circuit Breaker Coil Adapter  
Air circuit breaker coil adapter for adapting an air circuit breaker, comprises: a coil unit housing for releasably receiving an air circuit breaker coil unit, the coil unit housing having a coil...
US20050140476 Circuit interrupter with reset lockout and reverse wiring protection  
A ground fault circuit interrupter (GFCI) with a reset lockout mechanism and reverse wiring protection is applicable to various appliance, instruments, equipments, devices or systems. Its...
US20130120091 RESIDUAL-CURRENT CIRCUIT BREAKER  
A residual-current circuit breaker includes a core-balance transformer, a first conductor and a second conductor of an electrical supply system which is to be protected being routed through the...
US20090256661 DISCONNECT MECHANISM IN A POWER RECEPTACLE WITH GROUND-FAULT CIRCUIT INTERRUPTION FUNCTIONS  
A disconnect mechanism for a power receptacle, which includes a disconnect block, a locking member slidably coupled to the disconnect block, and an electromagnetic device moveably coupled to the...
US20090195337 MANUALLY SELECTABLE INSTANTANEOUS CURRENT SETTINGS FOR A TRIP UNIT AND ELECTRICAL SWITCHING APPARATUS INCLUDING THE SAME  
A circuit breaker includes separable contacts, an operating mechanism structured to open and close the separable contacts, and a trip mechanism cooperating with the operating mechanism to trip...
US20080048806 Electronic Switching Device, In Particular Circuit-Breaker And Associated Operating Method  
An anti-serial cascade circuit including two silicon carbide JFETs and two silicon MOSFETs is known. Disclosed is a combination of a JFET, a smart power MOSFET SPM and a thyristor with an...
US20130241678 Reinstallable Circuit Interrupting Device with Vibration Resistant Miswire Protection  
A GFCI device includes a latch assembly provided with a rigid electrically conducting bar connected thereto such that when a user presses a reset button the latch assembly is moved toward a pair...
US20100201466 Ground Fault Circuit Interrupter Device  
A ground fault circuit interrupter device is described.
US20130162378 POWER CIRCUIT BREAKER  
A power circuit breaker is disclosed wherein an electric current is monitored by an electronic trip unit in order to detect an electrical fault. In an embodiment, a first magnetic device of the...
US20130250459 PROTECTION DEVICE WITH A SANDWICHED CANTILEVER BREAKER MECHANISM  
The present invention is directed to a protective electrical wiring device that includes at least one first stop member disposed proximate at least one first conductor. The at least one first stop...
US20070132531 Two pole circuit interrupter employing a single arc fault or ground fault trip circuit  
An arc fault circuit breaker includes a housing and two poles therein. Each of the poles includes separable contacts, an operating mechanism structured to open and close the separable contacts,...
US20080012666 Method and system of current transformer output magnitude compensation in a circuit breaker system  
A method and system to detect currents in the saturation region of a current transformer for a circuit breaker is disclosed. An example method is sensing a fault condition with a current...
US20150109078 DIRECT CURRENT SENSING CIRCUIT AND CIRCUIT INTERRUPTER INCLUDING THE SAME  
A circuit for sensing a direct current includes a first resistance and a second resistance. A first portion of the direct current flows through the first resistance and a second portion of the...
US20130093541 SHORT-CIRCUIT RELEASE HAVING AN OPTIMIZED COIL CONNECTION  
A short-circuit release is disclosed, in particular for a power circuit-breaker, including an armature and a pole, that are located inside of a coil element; and a yoke plate and a terminal...
US20130009732 SHORT-CIRCUIT RELEASE HAVING AN OPTIMIZED COIL CONNECTION  
A short-circuit release is disclosed, in particular for a power circuit-breaker, including an armature and a pole, that are located inside of a coil element; and a yoke plate and a terminal...
US20120182095 INSTALLATION SWITCHING DEVICE  
An installation switching device which rapidly disconnects short-circuit currents is provided. A contact lever is arranged at least partially in an air gap in a magnetic circuit such that, in case...
US20120182096 INSTALLATION SWITCHING DEVICE  
A current path in an installation switching device includes first and second contact points, which respectively include first and second levers. The second lever is arranged in an air gap in a...
US20090315652 LOCKING MECHANISM FOR PROTECTING A GROUND FAULT CIRCUIT INTERRUPTER FROM FAULTY RESETTING  
A locking mechanism for protecting a ground fault circuit interrupter (GFCI) from being faultily reset. In one embodiment, the locking mechanism has a blocking member secured onto a lateral side...
US20150002246 REMOVABLE DEVICE FOR AN ELECTRONIC TRIP UNIT, POWER SUPPLY METHOD OF SUCH A DEVICE AND ASSEMBLY COMPRISING AN ELECTRONIC TRIP UNIT AND ONE SUCH REMOVABLE DEVICE  
The removable device (20) according to the invention is designed to be connected to an electronic trip unit (10). The trip unit (10) comprises an internal electrical power supply bus (55) and the...
US20080309437 Fault Interrupting and Reclosing Device  
A fault interrupting and reclosing device includes a circuit interrupter coupled to an actuator. The actuator includes at least one force generating element for generating an opening force for...
US20080284548 Method for Sectioning With a Section Switch a Medium-Voltage Electric Power Distribution Line Exhibiting a Disturbance, Section Switch for Medium-Voltage Electric Power Distribution Line Applicable Thereon and Electronic Circuit for Detecting a Fault Current and Comprised by Said Section Switch  
The present invention discloses a method for sectioning a medium-voltage distribution electric line evidencing a disturbance, wherein said method comprises the stages of: (a) evaluating a current...
US20060119456 Electric leakage protection socket  
This invention relates to an electric leakage protection socket, comprising a case in which a pin, a stationary contact chip, a movable contact chip, a magnetic ring, a circuit board, a trip coil,...
US20100001819 CIRCUIT INTERRUPTING DEVICE WITH REVERSE WIRING PROTECTION  
Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The...
US20070279160 Securing means for an access control device  
A securing means is used for keeping closed and releasing, as well as monitoring the state of a part which clears or blocks access to a hazard space. The securing means comprises an electromagnet...
US20130043963 OVERCURRENT SWITCHING DEVICE  
An overcurrent switching device for an electric circuit to be monitored, which has interrupter contact means (14) constructed in such a manner that an interruption of the electric circuit is...
US20100134222 RESIDUAL-CURRENT CIRCUIT BREAKER  
A residual-current circuit breaker includes a summation current transformer having a core, a first secondary winding wound onto the core, and at least one second secondary winding wound onto the...
US20080315980 MEMS MICRO-SWITCH ARRAY BASED ON CURRENT LIMITING ENABLED CIRCUIT INTERRUPTING APPARATUS  
The present invention comprises a micro-electromechanical system (MEMS) micro-switch array based current limiting enabled circuit interrupting apparatus. The apparatus comprising an over-current...
US20130021120 RECEPTACLE TYPE GROUND FAULT CIRCUIT INTERRUPTER WITH REVERSE WIRE PROTECTION  
A ground fault circuit interrupter comprises a reset key, a reset locking mechanism, a reset mechanism, a reset bracket, a bracket reset mechanism, a bracket homing mechanism, a reset linkage...
US20080012667 Method and system for time synchronized trip algorithms for breaker self protection  
A time-synchronized trip implementation for a motor circuit protector (MCP) having a reconfigurable microcontroller. The microcontroller causes a power supply to, be charged for an initial time...
US20140002215 ELECTRICAL CONTACT APPARATUS, ASSEMBLIES, AND METHODS OF OPERATION  
An electrical contact apparatus is disclosed. The contact apparatus has first contact member having a first contact, a movable contact member received adjacent to the first contact member, the...
US20130241676 CIRCUIT PROTECTION DEVICE AND TRIP UNIT FOR USE WITH A CIRCUIT PROTECTION DEVICE  
A trip unit for use with a circuit protection device including a trip mechanism includes a support bracket and a magnet member coupled to the support bracket. The magnet member is configured to...
US20130241677 Compact Latching Mechanism for Switched Electrical Device  
A resettable switching apparatus, useful in a GFCI receptacle, has a space-efficient coaxial configuration in which a mechanical latching arrangement for resetting (i.e., closing) main switch...
US20150084721 LINE PROTECTION SWITCH  
The invention relates to a line protection switch (1) for protecting an electrical load circuit from an over-current which exceeds a permissible load current. In order to provide a structurally...
US20120075043 CIRCUIT BREAKER WITH A DIGITAL DATA PROCESSING DEVICE  
In a circuit breaker with a digital data processing device, triggering can be effected on the basis of the direction of an energy flow, that is to say whether energy flows from a current source to...
US20130162377 CIRCUIT BREAKER  
A molded case housing each part is configured of a case main body (54) and a cover (55) placed on an upper portion of the case main body, the case main body (54) is configured of a bottom portion...
US20170148599 GROUND FAULT CIRCUIT INTERRUPTER  
A ground fault circuit interrupter includes a reset key, a reset mechanism, a conductive assembly configured to connect a power supply input side to a load side, a leakage signal detection...
US20160379789 Circuit Breaker with Current Limiting and High Speed Fault Capability  
A circuit breaker arraignment including at least two trip mechanisms the first trip mechanism acting to immediately trip to open contacts of the circuit breaker upon reaching a first threshold...
US20160358733 GROUND FAULT CIRCUIT INTERRUPTER  
A ground fault circuit interrupter includes a reset key, a reset mechanism, a conductive assembly configured to connect a power supply input side to a load side, a leakage signal detection...
US20160240341 PROTECTIVE DEVICE HAVING A THIN CONSTRUCTION  
The present invention is directed to an electrical wiring device that includes a circuit interrupter assembly coupled to a solenoid actuator and configured to move along an assembly axis in a...
Matches 1 - 50 out of 53 1 2 >