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WO/1979/000537A1 |
A blown circuit breaker indicator is used with a conventional circuit breaker (9). The blown circuit breaker indicator includes a circuit including a light emitting diode (50), in series with a second switch (57) and a grounded connectio...
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JP7461237B2 |
To make an arc generated when a short circuit occurs difficult to reach a spring part that energizes a movable contact.A circuit breaker for wiring includes: a fixed contact including a fixed contact 24; a movable contact 22 including a ...
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JP7460804B2 |
This circuit breaker (10) opens a contact part (11) composed of a fixed contact (48a) and a movable contact when a short-circuit current of a load and a power supply is detected. The circuit breaker (10) comprises: an arc extinguishing g...
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JP7446205B2 |
To obtain a circuit breaker that can reduce vibration of an enclosure due to collision of a movable element including a plurality of movable conductors with a movable element holder.A circuit breaker includes a movable element 6 and a mo...
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JP7446254B2 |
To obtain a circuit breaker capable of suppressing reduction of a contact force between a movable contact and a fixed contact during a closing operation.A circuit breaker includes a mover 6, a mover holder 7, and a mover pin receptacle 9...
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JP7446204B2 |
To obtain a circuit breaker that can make contact between a movable contact and a fixed contact stable during a pole closing operation.A circuit breaker includes a movable element 6, including a plurality of movable conductors 60, and a ...
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JP7445524B2 |
To provide a plug-in breaker fixing structure in which there is no operation section at the side of a load-side terminal of the breaker and which cannot be removed in an ON state.A holding part 21 holding a breaker 1 in which a power sou...
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JP7442403B2 |
To provide a circuit breaker in which the positions of terminal fittings can be easily adjusted and the present positions of the terminal fittings can be easily grasped.In a body case 2, there are provided: terminal fittings 10A and 10B;...
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JP7439292B2 |
The present invention relates to an arc extinguishing assembly, including side members which are spaced apart by a certain distance and disposed to face each other; an exhaust which is installed on an upper part of the side member; a plu...
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JP7439294B2 |
The present invention relates to an arc extinguishing assembly, including side members which are spaced apart by a certain distance and disposed to face each other; an exhaust which is installed at an upper part of the side member; a plu...
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JP7437665B2 |
To provide a terminal device and a circuit breaker capable of reducing the amount of a material composing terminal components.A terminal device 4 includes a contact (a fixed contact 41), a first terminal component 5, a second terminal co...
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JP7433156B2 |
To provide a lock cover mounting structure which can suppress the lifting of a lock cover from the upper surface of a main body case even when the lock cover is attached to an operation unit in the ON position or the lock cover is attach...
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JP7432762B2 |
An air circuit breaker is disclosed. The air circuit breaker according to an embodiment of the present invention includes a cover magnet unit. The cover magnet unit is directly coupled to an upper cover which forms the outer appearance o...
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JP7432761B2 |
Disclosed are an arc extinguishing unit and an air circuit breaker comprising same. An arc extinguishing unit, according to an embodiment of the present invention, comprises an extinguishing magnet unit that forms a magnetic field inside...
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JP2024017339A |
An object of the present disclosure is to improve workability in connection work of electric wires. A circuit breaker A1 has a terminal block B1 electrically connected to a conductor of a primary electric wire. Terminal block B1 includes...
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JP2024017341A |
An object of the present invention is to provide a circuit breaker and a distribution board that can reduce the possibility of deformation of an outer case. [Solution] A circuit breaker A1 includes: a terminal block B1 electrically conne...
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JP2024017338A |
An object of the present disclosure is to improve the workability of wire connection work. A circuit breaker A1 has a terminal block B1 electrically connected to a conductor of a primary electric wire. Terminal block B1 includes a first ...
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JP2024017340A |
An object of the present invention is to provide a circuit breaker and a distribution board that allow the connection state of electric wires to be visually confirmed. [Solution] The circuit breaker includes a terminal block B1 electrica...
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JP7427332B2 |
To provide a circuit breaker that prevents the armature from floating or rotating due to the impact force when a handle is operated, and also prevents an unfavorable gap between a cover and a base or between the cover and other parts.A c...
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JP7422891B2 |
The present invention relates to an arc extinguishing assembly including a sealing member and a circuit breaker including same. The sealing member is pressed and elastically deformed between coupling surfaces of the arc extinguishing ass...
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JP7422335B2 |
To provide a detection system capable of detecting power recovery of a power system in a state in which a contact of an electric path is open, a circuit breaker, and a distribution board.A detection system is used for a circuit breaker 1...
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JP7418925B2 |
To suppress a failure caused by not sufficiently securing a contact area with a bus bar.The present invention relates to a plug-in terminal structure in which a bus bar 8 inserted from an introduction part is connected by contacting a fi...
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JP2024008076A |
The present invention provides a branch circuit breaker mounting structure that improves the reliability of fixing the branch circuit breaker to a mounting position. A branch circuit breaker mounting structure 100 includes a mounting mem...
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JP2024008077A |
A branch circuit breaker mounting structure is provided that allows easy removal of a branch circuit breaker mounted at a mounting position. A mounting member 6 releases the mounted state of a branch circuit breaker 4 when a contact port...
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JP2024008079A |
The present invention provides a branch circuit breaker mounting structure that allows the mounting state of the branch circuit breaker to be easily confirmed. [Solution] A branch circuit breaker mounting structure 100 is configured such...
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JP2024008694A |
An object of the present invention is to provide a circuit breaker that can be downsized and can stably rotate a movable contact. A current interrupting section corresponding to each phase of a main circuit is provided with a long plate-...
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JP2024004761A |
[Problem] To enable a different arrangement of copper bars and breakers than before. [Solution] A plug-in adapter 1 includes a breaker connection part connectable to a connection terminal part of a breaker 4 having a connection terminal ...
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JP7411921B2 |
The purpose of the present disclosure is to downsize a circuit breaker while providing a circuit board. A circuit breaker (1) is provided with a circuit board (6) and a body (5). The body (5) houses therein at least the circuit board (6)...
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JP7412600B2 |
To obtain an overcurrent trip device which can realize a reduction in the size of the device and a circuit breaker using the same. An overcurrent trip device (100) includes a conductor (3) connected to a main circuit of a circuit breaker...
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JP2024002573A |
[assignment]To obtain a communication unit for a circuit breaker capable of outputting information indicating the open/closed state of the circuit breaker by wireless communication without using power from a power supply circuit that gen...
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JP7407565B2 |
To provide a tripping device to which a spring can be easily attached and a circuit breaker including the same.A tripping device 100 includes a magnetic attraction unit 130 that generates a magnetic force when an overcurrent is generated...
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JP7405853B2 |
A switching device for guiding and switching of load currents includes: a movable switching component having a first movable contact and a second movable contact; a first fixed contact and a second fixed contact; a supporting device for ...
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JP2023180100A |
To make it possible to maintain an open pole position of a movable contact with a simple structure during current limiting cutoff and to be applicable to a small-sized model in a circuit breaker.At a fixed contact 12, a fixed contact poi...
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JP7399026B2 |
To provide an interlock device capable of improving a degree of freedom in a holding state of another lever while holding one lever of a breaker.The present invention relates to an interlock device 100 for holding ON or OFF of one of a f...
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JP7399308B2 |
Disclosed is an air circuit breaker. The air circuit breaker according to an embodiment of the present invention includes a CT magnet unit. The CT magnet unit is provided in the air circuit breaker to cover a movable contact point expose...
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JP7399276B2 |
A trip device is disclosed. The trip device according to an embodiment of the present invention comprises an adjustment crossbar. The adjustment crossbar is in contact with or is spaced apart from a shooter and can open or close a breake...
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JP2023176575A |
To provide a circuit breaker connector capable of wire connection processing in a large space of a distribution board before assembling a circuit breaker.A circuit breaker connector has a first branch unit 4a that has a terminal fitting ...
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JP2023176577A |
To enable leading and wiring of a wire in a large space before assembling a breaker.A distribution board has a connector 4 for branching that is interposed when connecting a branch circuit breaker 3 to a branch wiring 9. The connector 4 ...
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JP2023176576A |
To provide a circuit breaker connector capable of a wire connection process in a large space in a distribution board before assembling the circuit breaker.A circuit breaker connector comprises a first main unit 5a that has a terminal fit...
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JP7391473B2 |
To provide an electrical device in which a load-side terminal plate having a horizontal surface to which an electric wire is connected and a vertical surface extending in a direction different from the horizontal surface is located on th...
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JP2023170000A |
To provide a terminal seat capable of attaining space saving while appropriately securing a passage in which a gas can be circulated, inside a circuit breaker, and the circuit breaker.A terminal seat electrically connecting a wire which ...
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JP2023170001A |
To provide a release lever capable of enhancing operability relating to a release operation of engagement of a wire, and a circuit breaker.A release lever is used for releasing engagement of a wire in a storage part of a circuit breaker ...
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JP2023169999A |
To provide a circuit breaker in which a release lever for releasing the engagement of electric wires can be easily assembled.A circuit breaker includes a terminal seat that can be engaged with the end of an electric wire, a release lever...
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JP7390202B2 |
To provide a circuit breaker having a pocket cover which can be easily removed but is hardly detached even if internal pressure rises.A circuit breaker has a pocket part 5, for housing an accessory device, on an upper surface of a housin...
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JP2023167700A |
To provide a current measuring device that can ensure reliability of a current measuring section.A current measuring device 40 includes a plurality of current measuring sections 27a to 27c and a self-diagnosis determining section 31c. Th...
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JP7384180B2 |
To provide a circuit breaker that enhances the cooling effect of an arc by increasing the amount of ablation gas generated, maintains a fixing function of a plurality of grids by increasing the tracking resistance and heat resistance, an...
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JP7380275B2 |
To provide an arc runner that enables an arc to run smoothly from a fixed side contact to the arc runner even in a small current region and a circuit breaker using the same.In the arc runner, a fixed contact part 1 and a guide part 2 are...
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JP7378643B2 |
This arc-extinguishing device (100) eliminates an arc generated when a circuit breaker blocks an electric current. The arc-extinguishing device (100) comprises: a lower lid (1) that has a first sidewall and a second sidewall that face ea...
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JP2023160165A |
To obtain a circuit breaker capable of fixing a round crimp terminal without using a crimp terminal tightening screw and reducing restrictions on an insertion direction of the round crimp terminal.A terminal device includes: a terminal f...
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JP2023156739A |
To provide a circuit breaker that improves breaking performance by preventing re-contact or re-ignition of a movable contact and a fixed contact even when the movable contact opens due to small electromagnetic repulsive force.In a circui...
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