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WO/1999/060594A1 |
Ease of assembly, inexpensive construction and improved reliability may be achieved in a trip mechanism for an overload relay including a housing (10) containing a bistable armature (18) mounted in the housing (10) on a pivot (16) for pi...
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WO/1999/057742A1 |
A circuit protection apparatus includes a circuit breaker coupled in series with a circuit to be protected. The circuit breaker has a trip input and is responsive to a trip signal at the trip input for changing from a closed circuit cond...
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WO/1999/056371A1 |
The invention relates to a circuit breaker with which it is possible to adjust the nominal current of the switch on the electronic tripping device. The solution is suited for all circuit breakers having an electronic tripping device whic...
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WO/1999/049490A1 |
The invention relates to a circuit-breaker which is activated by rotation and which has a leading auxiliary switch. When the circuit-breaker is switched on, the auxiliary contacts of the auxiliary switch (4) are activated temporally befo...
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WO/1999/036928A1 |
The load lugs electrically connecting circuit breakers employing electronic trip units with associated electrical distribution circuits are shaped to provide magnetic flux concentration to Hall effect current sensors within the electroni...
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WO/1999/037006A1 |
A circuit interrupter of the type including an electronic trip unit for overcurrent determination which includes a small-sized iron core current transformer to power the trip unit electronics along with a giant magnetic resistor semicond...
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WO/1999/031697A1 |
A reverse deflection prevention arrangement is provided for use in a circuit breaker for preventing a bimetal from bending in a direction opposite its normal thermal deflection. The reverse deflection prevention arrangement includes a ta...
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WO/1999/013483A1 |
An electronic switch circuit (10) including an electromagnetic relay device (18) having an electromagnet (20) and at least two contacts (21), a controlled semiconductor device (22), a semiconductor command circuit (24) for controlling th...
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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/1998/038666A1 |
Electro-mechanical switching devices have at least one movable contact and one pertaining drive mechanism in the casing of an appliance. Means for contactless identification of switching status have already been disclosed, wherein magnet...
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WO/1998/035372A1 |
A lockout solenoid is connected with the circuit breaker accessory shunt trip in a high ampere rated circuit breaker and interacts with the circuit breaker accessory lever to prevent the closing of the circuit breaker contacts until the ...
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WO/1998/027633A1 |
A ground fault/rating plug (17B) for molded case circuit breakers is inserted within the circuit breaker cover (42) for electrical connection with the circuit breaker electronic trip unit. A rating resistor (51) within the ground fault/r...
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WO/1998/027564A1 |
Each pole of a multi-pole circuit breaker is equipped to individually separate the circuit breaker contacts within each pole upon overcurrent occurrence. A digital processor within the circuit breaker trip unit determines the occurrence ...
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WO/1998/010455A1 |
A circuit breaker which is assembled by unitizing each part and inserting each unit into a molded case. A method by which the efficiency of the automatic assembly of the breaker is improved by inserting each unit into the molded case fro...
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WO/1998/010456A1 |
An overcurrent circuit breaker is housed in an approximately square housing (1) made of an insulating material and composed of two parts, a chassis (2) and a closure (3). A switching gear which guides the displacement of a contact bridge...
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WO/1998/010451A1 |
The invention concerns a mechanical connection for transmitting switching energy from a drive device to a movable contact carrier (2). Hinged tabs (1) comprise on the side of the movable contact carrier (2) hook-like ends (3) which are o...
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WO/1998/009307A1 |
A mobile switching contact arrangement (7) for a low-voltage power switch (1). Said arrangement presents a support (11) for various contact levers, with contact force springs (17) interacting with the contact levers (10). The contact lev...
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WO/1998/009306A1 |
A mobile switching device (7) for a low-voltage power switch (1). Said device presents a contact lever support (11) accommodating several contact levers (10). The contact lever support (11) comprises a base body (26) and additional parts...
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WO/1998/008240A1 |
The invention concerns a movable contact arrangement (10) for a low-voltage circuit breaker (11). The contact arrangement comprises a contact lever carrier (12) equipped with contact levers (13), and can be moved by a drive device (21) 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/1997/045852A1 |
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/1997/043775A1 |
This invention concerns a circuit breaker (1) for low tension which has a housing (2) consisting of a back wall (25) and a front part (26) in which a circuit contact system (11) with connecting bars (20, 21) is placed. The connecting bar...
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WO/1997/028546A1 |
A circuit breaker having a current transformer (CT) suitable for automatic fitting. The object of the invention is to provide a circuit breaker capable of improving productivity by making it easy to combine the CT with conductors. To acc...
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WO/1997/027602A1 |
The object of the invention is to prevent movable contacts (4) from being welded to fixed contacts (5) of a switching device (1). This object is achieved by an auxiliary magnet system (22, 23, 24) which is arranged in the main conducting...
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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/1997/025730A1 |
The invention concerns a wiring component (11) with which a power switch (1) can be interconnected both with an alternating current contactor (2) as well as with a direct current contactor (3), even when the connecting strips (5, 8) of t...
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WO/1997/023887A2 |
In a thermal triggering system (1) with bimetal strips (2), a slide (3), a switching component (5) to trigger a switching process and a differential lever (4) which is secured to the slide (3) and, when the latter is moved in the pushing...
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WO/1997/018571A2 |
All switching devices which have the purpose of protecting people or objects from the harmful effects of electric current include at least triggering elements which trigger the appropriate switching mechanisms whenever predetermined thre...
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WO/1997/017713A1 |
This invention provides a display unit for the tripping device. Since the prior tripping devices have not display units, a repairman can not judge the cause for the tripping while it occurs. The display unit provided by the invention inc...
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WO/1997/001859A1 |
In an electrical switching device including a stationary contact carrier having a stationary contact mounted thereon, a contact carrier assembly comprises a movable contact carrier and an arc-resistant protective shield. The movable cont...
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WO/1997/001856A1 |
An arrangement in an electrical switching device for protection against electrical arcs comprises a tripping mechanism, a stationary contact carrier, a movable contact carrier, an exhaust vent, an arc runner, and an arc extinguishing bar...
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WO/1996/024941A1 |
A secondary disconnect arrangement, in the form of a plug connector (51) attached to the sides of a high ampere-rated circuit breaker assembly (10), interacts with a receptacle connector (28) attached to the inner side walls (34, 35) of ...
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WO/1996/019007A1 |
A circuit breaker (10) including a sliding connection between a trip unit (12) and associated contact arm (20) is disclosed herein. The sliding connection facilitates assembly of the circuit breaker (10) and also permits a reduction of s...
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WO/1996/012293A1 |
A solid state overload relay mechanism designed for minimizing the forces required to open an electrical contact associated therewith in the event of a current overload in a protected circuit, and further designed for overcoming residual...
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WO/1996/012292A1 |
In a miniaturized automatic circuit breaker with a casing (50) of insulating material forming an arc-extinguishing chamber and a housing for contacts (3, 4) which are closed and opened and for a pair of terminals (57, 58) for connection ...
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WO/1996/001488A1 |
A detent mechanism comprising a support member having a fixed seating member comprising opposite sides; a first spring for exerting a first spring force, disposed between one side of the fixed seating member and a first sliding member, f...
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WO/1996/001484A1 |
An electrical switching device arranged to display the status of said device on a flag significantly larger than the relative movements of any components of said device. In an envisaged embodiment of the invention, this is achieved by ar...
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WO/1996/001489A1 |
This invention relates to a push button residual current device wherein a single pusch button is used to perform setting and testing operations on the device. More specifically, over the first part of the down stroke of the push button a...
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WO/1995/033275A1 |
A high ampere-rated circuit breaker (10) which meets the electrical code requirements of the world market. The circuit breaker electronic trip unit (15) is contained within a trip unit recess (15A) in the circuit breaker cover (14). Acce...
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WO/1995/032512A1 |
This invention relates to a high ampere-rated circuit breaker (10) which meets the electrical code requirements of the world market. The circuit breaker electronic trip unit (17) is contained within a recess (24) in the circuit breaker c...
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WO/1995/032515A1 |
A high ampere-rated circuit breaker (10) which meets the electrical code requirements of the world market. The electronic trip unit (20) is contained within the circuit breaker cover (15) and is configured to prevent access to the access...
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WO/1995/032513A1 |
A combined bell alarm and lock-out accessory (20) is connected with the electronic trip unit (60) that controls a high ampere rated circuit breaker (10). The accessory (20) interacts with the circuit breaker operating mechanism (9) to ac...
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WO/1995/028726A1 |
A low voltage power switch (1) has a switching chamber (2) with a switching contact arrangement (3) and an arc extinguisher (14). The switching chamber (2) is sealed by an apron-like projection (18) on the mobile contact support (6) in a...
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WO/1995/022157A1 |
An arc stack for receiving a circuit breaker blade moveable between a closed position and an open position, comprises a plurality of arc plates positioned substantially parallel to one another and arranged in a plurality of adjacent grou...
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WO/1995/020237A1 |
A circuit breaker (1) comprises a base (20) and cover (21) with rear, front and side wall portions which cooperate on assembly of the base (20) and cover (21) to form an enclosure for the various components of the circuit breaker. An enc...
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WO/1995/019632A1 |
A mid terminal for a double break circuit breaker comprises first and second elongated conductive plates, where each of the plates have first and second ends. The second end of the first plate is longitudinally spaced from the first end ...
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WO/1995/019631A1 |
A double break circuit breaker includes a pair of contact assemblies, an arc stack and an arc extractor. At least one of the contact assemblies interrupts the current by moving from a normally closed position to at least one open positio...
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WO/1995/019635A1 |
A high current capacity blade for a circuit breaker, comprises a conductive blade body having front and rear sections connected to one another, where the rear section includes a surface attachment area for fastening a flexible connector ...
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WO/1995/019629A1 |
An arc stack for receiving a circuit breaker blade moveable between a closed position and an open position comprises a plurality of generally rectangular arc plates having substantially similar length and width dimensions and positioned ...
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