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WO2006075232A9 |
A moving contact assembly for high-current interruption electric power switching apparatus has an inner carrier for the contact fingers that is rigidly held in a withstand position in an outer carrier by a spring biased cam follower pin ...
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WO/2007/088080A1 |
The aim of the invention is to allow a contact system (1) with at least two contacts (3, 5) to be reliably opened. For this purpose, the contact system (1) for electrical switchgear comprises a first contact (3), arranged on a first cont...
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WO/2007/036282A1 |
The invention proposes an electrical switching device, comprising a contact lever (13), which is mounted approximately centrally such that it can rotate, wherein a movable contact piece (12) is arranged at the free end of the first arm (...
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WO/2007/012569A1 |
The invention relates to a selective main line breaker switch, in which a subsidiary current path branches off from a main current path at a first node point (KN1) after a switch and returns to the main current path at a second node poin...
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WO/2006/053619A1 |
This invention pertains to an automatic single- or multi-pole circuit breaker (1) for use in lowvoltage applications. The circuit breaker (1) includes at least a first fixed contact (10) that is coupled/uncoupled with a first moving cont...
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WO/2005/059941A1 |
The invention relates to an electrodynamically tilting contact system for power circuit breakers, whereby an actuating shaft segment (14), a rotary contact bridge (6) pivotally mounted therein and contact force springs (24) form componen...
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WO/2005/034162A1 |
Disclosed is a power switch comprising a current path, in addition to at least one moving contact and at least one fixed contact. The current path is guided between the moving contact and the fixed contact in the form of a narrow loop. A...
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WO/2005/031779A1 |
The invention relates to a drivetrain, for at least one moving contact (6) in an electrical switch (1), comprising a switch shaft (9), a first coupling module, coupling the switch shaft to a drive (19) and at least one second coupling mo...
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WO/2005/029526A1 |
The invention relates to an electrical switch (1) comprising a moving contact (6), which, via a drive train (8, 9, 14), can be transferred against the force of a contact force spring (7) out of an OFF position and into an ON position, an...
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WO/2005/006375A2 |
The invention relates to a current limiting method, a current limiting device (1), and a switchgear comprising such a device (1). According to the invention, liquid metal (3) is directed along a resistor element (5) for the current limit...
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WO/2005/006373A1 |
The invention relates to a method and a device (1) for combined current limitation and power breaking and to a switchgear having said device (1). In a combined current limiter/power braker (1) according to the invention, a movable electr...
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WO/2003/102991A1 |
The invention relates to a protection device against overvoltages, comprising a fixed electrode (12) and a movable electrode (22), arranged facing an arc extinguishing chamber (54). The movable electrode (22) is operated by an electromec...
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WO/2003/052784A1 |
A current-limiting low-voltage circuit breaker comprising a contact system which is latched by a switch latch, said contact system being provided with at least one movable switch contact (4) for each phase, said contact being able to be ...
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WO/2003/041105A1 |
A low-voltage circuit breaker, comprising: a rotating contact supporting shaft, is provided with a seat that accomodates the central body of a moving contact so that the first arm protrudes externally from the seat, at least one first sp...
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WO/2003/041106A1 |
A low-voltage circuit breaker, comprising: - at least one first fixed contact, which is electrically connected to a terminal for connection to an electric circuit; - a rotating moving contact, which comprises a central body from which at...
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WO/2003/015115A1 |
The invention relates to a self-recovering current-limiting device (10) with liquid metal. Electrodes are arranged in the region of the base of the chamber and one or several insulating separating walls are arranged between the electrode...
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WO/2003/012812A1 |
A Circuit breaker comprising: a case (1); terminals (2,3) for connection to an electric circuit; separable contact means (4,5); an actuating knob (6) which rotates about a first pivot (7) that is rigidly coupled to the case (1) between a...
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WO/2002/054431A1 |
An automatic current limiting circuit breaker, which comprises an insulating enclosure that accommodates fixed contact means and movable contact means, actuation means for actuating the movable contact means between open-circuit conditio...
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WO/2002/041347A1 |
The invention relates to a contact arrangement for current-limiting protective circuit breakers for use in the low voltage range, especially for current-limiting power circuit breakers. According to the invention, a rotary contact bridge...
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WO/2002/041345A1 |
The invention relates to a contact arrangement for current-limiting protective circuit breakers for use in the low voltage range, especially for current-limiting power circuit breakers. The aim of the invention is to simplify a contact a...
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WO/2002/041346A1 |
The invention relates to a contact arrangement for current-limiting protective circuit breakers for use in the low voltage range, especially for current-limiting power circuit breakers. The aim of the invention is to achieve a more favor...
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WO/2002/035571A1 |
A circuit breaker with a line terminal (12) and load terminal (14), having an operating mechanism with a main, movable contact arm (30) coupled to a load terminal and an auxiliary contact apparatus (40) coupled in series with the main mo...
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WO/2002/035570A1 |
The invention relates to a low-voltage power circuit breaker (1) comprising a current-limiting opening of a mobile switching contact (8). The force-transmitting connection between the actuating shaft lever (12) and the mobile switching c...
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WO/2002/027743A1 |
The invention relates to a drivetrain for a moving contact (2), associated with a second contact (11) and provided with a pivoting drive lever (4), a pivotably mounted contact support (6), for the moving contact (2), and a coupling sub-a...
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WO/2001/084579A1 |
The invention relates to a magnetic release for opening a contact system, containing a coil winding (21) connected in series with the contact system (10) and a magnet armature (22) surrounded by the coil winding, which is magnetically im...
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WO/2001/071742A2 |
A circuit breaker cassette (10) comprises a housing (14) having a fixed contact (24), and a movable contact (26) on a contact arm (30). The contact arm (30) is positionable in a closed position and an open position, wherein the contact a...
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WO/2001/069637A1 |
The invention relates to a tripping device for a circuit-breaker comprising contacts that are located in a housing (50) and that can be disconnected by the actuation of a tripping shaft (2) of an interrupting device (40). Said tripping d...
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WO/2001/069638A2 |
A circuit breaker assembly (10) includes first and second rotary contact assemblies (12) mountable to a base member, a circuit breaker operating mechanism (13) mounted to the first rotary contact assembly (12), and a trip bar (54) in mec...
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WO/2001/016989A1 |
A circuit interrupter including a housing, separable main contacts within the housing and rotatable between a contact open position and a contact closed position, and an operating mechanism within the housing and interconnected with the ...
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WO/2001/016984A1 |
A circuit interrupter with an accessory case socket into which an accessory bell alarm member is disposed. A two-piece lever arrangement is provided in the bell alarm accessory case between the micro-switch button thereof and the operati...
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WO/2001/016988A1 |
A circuit interrupter handle mechanism is disposed on the face of a molded case circuit breaker. The handle mechanism has a rotary handle, which may be rotated through approximately 90° of rotation from a disposition of circuit interrup...
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WO/2001/016985A1 |
A circuit interrupter including a housing, separable main contacts disposed in the housing, and an operating mechanism disposed in the housing and interconnected with the contacts. The operating mechanism includes a cradle for moving fro...
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WO/2001/006530A1 |
The invention relates to a displaceable contact (10), especially for a circuit-breaker which is rotatably mounted with a rotor in a concentric manner, which connects two fixed contacts to one another when in a closed position, and which ...
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WO/2000/041202A1 |
A current limiter having an excellent current-limiting function and produced at low cost and a circuit breaker comprising the same and having a small impedance are provided so as to prevent the case from being damaged because of an unwan...
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WO/2000/034971A1 |
The invention relates to a circuit breaker protecting electric circuits especially in motor vehicles. Said circuit breaker comprises a flat housing consisting of an insulating material with two juxtaposed flat plugs. The flat plugs are c...
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WO/1999/062092A1 |
A circuit breaker rotary contact assembly employs a common pivot between the rotor assembly and the rotary contact arm. A pair of off-center expansion springs directly engage the rotor at one end and engage the rotary contact arm via a l...
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WO/1999/010902A2 |
A Positive Temperature Coefficient Resistivity (PTC) element has a resistivity that increases as the temperature increases. Circuit breakers having PTC elements can achieve better overload and short circuit protection than existing produ...
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WO/1998/048436A1 |
The invention relates to an electromagnetic switching device (1) having an electromagnetic driving device (3) that acts as an auxiliary magnetic system, with which, on occurrence of a short-circuit current, the contact force is increased...
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WO/1998/035419A1 |
The invention relates to a circuit breaker, which is in a fault situation arranged to disconnect an electrical apparatus, such as a distribution transformer, from an average voltage network or a high voltage network at each terminal. At ...
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WO/1998/005053A1 |
The invention concerns a current-limiting power circuit-breaker with a contact arrangement including two or more fixed contact members (8, 9) and containing one or more two-armed contact members (11) that can rotate about an axle (10), a...
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WO/1998/001883A1 |
An electrical circuit breaker includes a moveable contact piece connected to an actuating means and provided with a contact face arranged to make contact with a contact face of a second contact piece by movement generally in a first dire...
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WO/1997/045853A1 |
An electrical contact assembly (10) for use with an electrical switching device (17) associated with an electrical circuit (27) is constructed to directly utilize the magnetic force generated by an overload current in order to drive a mo...
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WO/1997/045852A1 |
An electrical switching device (10) which includes a latchable contact carrier (14) carrying one or more electrical contacts (13) that can move between positions wherein an associated electrical circuit (11) is closed and open, an actuat...
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WO/1997/027605A1 |
The invention concerns an electrical switching device where destructive loading of the contact support (5) on appearance of short circuit forces in the on position is avoided. This is achieved by stops (8) in the extinction chamber which...
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WO/1997/000531A1 |
A device for protection against overload of switching contacts (22, 23) of a switching device (6) is provided with an energy converter (5) situated in the vicinity of the switching contacts (22, 23) and exposed to electromagnetic radiati...
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WO/1996/038851A1 |
An electromagnetic switch for switching currents in a load operation range has a high-speed circuit breaker connected in series to protect the contacts (6) from melting in the overload range. The electromagnetic switch is highly reliable...
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WO/1995/034931A1 |
A device for protection against overcurrents in electric circuits. The device comprises at least one electrically conductive elastomeric body (10) and two electrodes (12, 14) which are intended to supply circuit current through said body...
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WO/1995/026586A1 |
A fault current safety switch has a thyristor (1) which when ignited simulates a fault current in a summing current transformer (5). An ohmic resistance (2) and a PTC resistance (3) interconnected in series are connected in parallel to t...
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WO/1995/022831A1 |
The device for switching electric current comprises a compressed gas switch, at least one vacuum switch (14) and two terminals (2, 3). In this switching device, a first consumable contact (10) of the compressed gas switch is electrically...
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WO/1995/022166A1 |
A blow-off terminal includes a flat conductive tang, a flat conductive input section, and a flat conductive output section. The input section includes a pair of generally parallel U-shaped strips. Each of the pair of strips includes firs...
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