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Matches 351 - 400 out of 4,727

Document Document Title
WO/2001/001536A1
An arc fault circuit breaker (10) comprising an electronics portion (22) that is interconnected with a mechanical portion (12) is presented. A plunger arm (50) affixed to the end of a plunger shaft (42) of a solenoid (40) connects the el...  
WO/2001/001426A1
A dual-rated current transformer circuit (10) has a first current line (12) which delivers a first current (IA) and a second current line (14) which delivers a second current (IB). A current transformer (20) is coupled to both the first ...  
WO/2000/074192A1
An electronic test circuit (128) for the self-testing of fault detection devices such as GFCI's, AFCI's and RCD's that enhances the safety of such devices by automatically testing the function of all components of these detection compone...  
WO/2000/072349A1
The invention concerns a protection relay, in particular of the thermal type, recessed relative to its front face (24), a recess acting as through passage for interconnection of the conductors (C) between the terminals of the relay contr...  
WO/2000/070635A1
The invention relates to a housing for electrical apparatus, especially for differential current detectors that can be coupled to automatic switches, comprising a base (1) and a lid (2) defining the location of the corresponding mechanis...  
WO/2000/070636A1
The invention relates to a housing for electrical apparatus, especially for differential current detectors that can be coupled to automatic switches, comprising a base (1) and a lid (2) defining the location of the corresponding mechanis...  
WO/2000/067280A1
The invention relates to a circuit breaker (1) that is designed to be added to an auxiliary device with auxiliary functions, such as a residual current operated device or an undervoltage circuit breaker. Said auxiliary device brings abou...  
WO/2000/067279A1
The aim of the invention is to guarantee a multi-pole, especially three-pole, protection for an low voltage switchgear (3) by means of an undervoltage release (2). A rectifier bridge (4) with a number of rectifier branches (4a, 4b, 4c) f...  
WO/2000/063939A1
An integrated electrically actuable mechanical release mechanism provides three separate fault detectors each arranged to detect a different current-driven fault in an electrical circuit. In a preferred embodiment a bimetallic strip is u...  
WO/2000/063935A2
The invention relates to a low voltage switchgear with a bimetallic actuator, especially to a motor safety switch or a power switch. The aim of the invention is to improve such a low voltage switchgear so that the fabrication and assembl...  
WO/2000/064022A1
A drive circuit for a residual current device comprises a transformer having a first and second primary coil each having n¿1? turns, and a secondary coil having n¿2? turns arranged to output a drive voltage responsive to any current im...  
WO/2000/044078A1
A circuit breaker (10) for use in a power/load circuit formed by a three-phase AC power supply (11) and a load (12) connected to the power supply (11) by means of three live power lines (R-R', S-S' & T-T'). The circuit breaker (10) compr...  
WO/2000/036623A1
A circuit breaker including a switch assembly for initiating one of at least two test conditions. The switch assembly is coupled ot a circuit board, an integrated circuit mounted thereon, and a solenoid, such that upon the initiation of ...  
WO/2000/036624A1
A circuit breaker and method for interrupting the flow of electric current in a line having a load and a source including a first switch connected in series with the line and a first actuating device coupled to the first switch and adapt...  
WO/2000/028560A1
The invention concerns an electromechanical protective relay comprising deformable bimetal switches in the event of overload in power lines. A triggering mechanism acts on a flexible blistering segment (20) which can pivot by means of a ...  
WO/2000/026934A1
The invention relates to a novel residual-current protective switching device. The switch or switches (1, 1') have at least one respective microrelay (3) for the interruption of current or currents in monitored current paths (8, 8').  
WO/2000/019473A1
An electric circuit breaker (1) contains an electronic tripping unit (5) for processing a signal of a current sensor (4) and a rated current plug connector (11) which interacts with the tripping unit (5). According to the invention, a re...  
WO/2000/019474A1
The invention relates to an electric circuit breaker (1) which comprises an electronic overcurrent release (4) for processing a signal emitted by a current sensor (6). A flexible connecting lead (5) is provided to connect the current sen...  
WO1999063563A9
The invention concerns a compact electrical block consisting of two modular elements (D, P) attached along one of their side surfaces, and comprising fixing means maintaining them in contact with each other in said configuration thereby ...  
WO/2000/011696A1
Resettable circuit interrupting devices (10) having a reset lockout and an optional independent trip mechanism (50, 52, 54) are provided. The reset lockout prevents the resetting of the circuit breaker if the fault protection is non-oper...  
WO/1999/065046A1
The battery disconnector has a terminal conductor (10) for a vehicle electric system, whereby said conductor is connected to the positive terminal of the battery and leads directly to the vehicle electric system, in addition to a generat...  
WO/1999/065047A1
The battery master switch has a housing that can be placed on the positive terminal of the battery and a pole terminal (4) that can be jammed tightly onto the positive terminal inside the housing (1,2). A fixed disconnecting contact (8) ...  
WO/1999/063563A1
The invention concerns a compact electrical block consisting of two modular elements (D, P) attached along one of their side surfaces, and comprising fixing means maintaining them in contact with each other in said configuration thereby ...  
WO/1999/060596A1
The potential for an unreliable indication of a tripped overload relay is eliminated in a trip mechanism for an overload relay that includes a housing, and armature mounted in the housing for movement between two contact opening or closi...  
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...  
WO/1999/053587A1
A leakage current interrupter (Fig. 23) comprising a trip mechanism (178) that operates automatically in response to the presence of a shock hazard condition. Actuation of the trip mechanism (178) automatically interrupts the flow of cur...  
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...  
WO/1999/038184A1
The invention relates to a low-voltage power breaker with an auxiliary release or an auxiliary release module. Electrical connection of the auxiliary release is simplified by means of a plug-in connector device (10, 17) for direct connec...  
WO/1999/030340A1
The auxiliary switch (2) has a slide (5) with a gate (14) as an actuating element that engages with the reversing lever (13) acting upon the contact carrier (11). After a first actuation stage, in which the slide (5) pushes the contact c...  
WO/1999/030339A1
The invention relates to a switchgear unit comprising a switching device having a rotating drive (12) and a switch latch and a leading auxiliary switch (1) coupled thereto. The switching device has a gate guide (15) that cooperates with ...  
WO1999010902A3
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...  
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...  
WO/1999/009573A1
A protective switchgear (1), in particular a fault-current protective switchgear, has a sensor circuit (2) for driving a first circuit-breaker (10) for a switch lock mechanism (12) which is coupled to a switching shaft (25) in order to a...  
WO/1998/053473A1
A kinematic system for actuating the movable contact of automatic electric breakers includes an actuation mechanism (5) which includes an external handle (9) which is pivoted to the body (3) of a breaker and is connected to the cross-mem...  
WO/1998/042001A1
A low-cost earth leakage circuit breaker which comprises a less number of parts and can be assembled easily. The earth leakage circuit breaker is highly reliable, has the same external size as those of the same class of wiring circuit br...  
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 ...  
WO/1998/034260A1
The invention relates to a switching device with under-voltage auxiliary switch, characterized in that it enables combining low activating force with a simple structural design. This is achieved by close coupling between the activating e...  
WO/1998/033255A1
A protecting device has a disconnecting contact (13) connected to the load current line (2) and actuated by an electromagnetic system (9). A shunt circuit leads from the side of the disconnecting contact (13) opposite to the battery to a...  
WO/1998/032144A1
The load disconnecting switch is connected with a contact installation (14, 15, 36) between a pole terminal (4) and a main circuit (8). By means of a manually operated switch arm (45), the contact installation can be locked in the closed...  
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 ...  
WO/1998/002896A1
A modular automatic electric breaker with optimization of used spaces, which comprises a flat box-like body (1) which has, on its rear face, couplers (2) for coupling to an omega-shaped guide and, on its front face, a central protrusion ...  
WO/1997/043779A1
A process is disclosed for adjusting thermal overload cut-outs. After bimetal strips (1) are synchronised and a release mechanism (3) is possibly pre-adjusted, a current is applied for a certain time to the bimetal strips (1), and the ac...  
WO/1997/038432A1
The present invention provides an accessory module for monitoring and controlling the status of a circuit breaker. The accessory module attaches to the side of a circuit breaker and has a mechanism similar to the mechanism in a circuit b...  
WO/1997/038431A1
The present invention provides an accessory module for monitoring and controlling the status of a circuit breaker. The accessory module attaches to the side of a circuit breaker and has a mechanism similar to the mechanism in a circuit b...  
WO1997023887A3  
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...  
WO/1997/008725A1
Described is a power circuit-breaker (1) including current transformers (13) and an electronic tripping device (2) with a housing (5), the circuit-breaker also including a data store (14) for characteristic values of current-transformer ...  
WO/1996/033505A1
The invention concerns a current transformer (1) which comprises essentially a torus (2) with a magnetic core, primary windings formed by the active conductors of an electrical installation to be protected, and a secondary winding (3) at...  
WO/1996/028872A1
An electrical differential protection apparatus, particularly a circuit breaker or switch having a test circuit, is disclosed. The apparatus (A) comprises a release (1) with a differential current sensing transformer (12), a relay (16) f...  
WO/1996/020525A1
The electrical circuit breaker has a main line (terminals 41, 42) to be protected, a test circuit (terminals 43, 44), a test key (2) and an electrical signalling device (49). The electrical signalling device (49) is situated in the housi...  

Matches 351 - 400 out of 4,727