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Patent Searching and Data


Matches 601 - 650 out of 12,215

Document Document Title
JP7345430B2
To obtain a circuit breaker unit that can easily attach and detach a circuit breaker by a connecting component even when a unit member is provided on the load side.A circuit breaker unit 1 includes a circuit breaker 2, a unit member 3, a...  
JP2023127921A
To suppress leakage of generated arc gas.A terminal cover 30 has a two-part structure consisting of a pair of first cover component 31 and second cover component 32, and covers a load side terminal 11 to which electric wires 12 and 13 ar...  
JP2023128756A
To provide a circuit breaker which can improve its cut-off performance by generating sufficient pyrolysis gas through reliable contact between an arc and an insulation part.A circuit breaker comprises: a fixed contact piece 2 having a fi...  
JP2023127417A
To also break a power supply side terminal from a power supply even in which a connection failure occurs in a power supply side terminal.A circuit breaker comprises: overcurrent detection means of detecting an overcurrent of a cable way ...  
JP2023125570A
To provide a waterproof cover for an earth leakage circuit breaker that can maintain waterproof performance and operability over a long period of time.A waterproof cover 18 is attached to an operation lever 16 protruding outwardly from a...  
JP7337569B2
To provide an electromagnetic trip device for a circuit breaker that can be assembled more easily as compared with a prior art.A movable electromagnetic piece 22 is assembled to a joint iron 21 in a state where the movable electromagneti...  
JP7336717B2
To provide a switching unit capable of improving productivity of the switching unit by improving assemblability of a housing of the switching unit, while improving an explosion-proof performance.A switching unit 70 includes fixed termina...  
JP2023121615A
To provide a circuit breaker which can reduce an external arc space.A circuit breaker includes a stator 22 having a stationary contact point 22a, a mover 23 having a movable contact point 23a movable when a circuit on a power supply side...  
JP7333768B2
To provide a circuit breaker capable of further increasing an opening speed and an opening distance of a contact during a breaking operation.A circuit breaker 100 comprises a handlebar 2, an engage pin 3, a first arm 4, a latch 5, a latc...  
JP7331796B2
To provide a circuit breaker capable of changing load of a movable piece spring using no jig for holding and moving a locking unit of a tip of the movable piece spring.A circuit breaker 100 has a tripping device 40 for driving an opening...  
JP7330903B2
To provide a conductive bar for a switch, that hardly comes off from a primary side terminal, and is adaptable without changing design of the switch upon a different amount of current.Both right and left connection parts are molded into ...  
JP2023116293A
To provide a connection failure detection circuit and a circuit breaker, capable of detecting a connection failure even with a voltage value of which generated potential difference does not reach an operation voltage of a photo coupler, ...  
JP7330672B2
To provide a circuit breaker capable of positioning a link member for a separator with simple structure.A circuit breaker 10 includes a separator 60, a handle 70, and a link member 80. The ink member 80 displaces the separator 60 by tran...  
JP7324697B2
To provide a terminal cover that can be locked with the terminal cover attached without providing a lock portion for connecting wires on the main body case side and without attaching the lock member to the terminal cover.A terminal cover...  
JP2023108824A
To provide a switch that can open and close an electric circuit with a simple mechanism.A switch provided in one electric circuit includes a fixed contact, a movable contact that can contact the fixed contact, an operation portion having...  
JP2023104626A
To provide a switch capable of improving current interrupting performance by forming a return passage between the inside and the outside of an arc extinguishing chamber with a simple structure of the arc extinguishing chamber.A switch in...  
JP7313263B2
To provide a circuit breaker that does not disengage a crossbar from a movable contact even when an impact is applied during a trip or when the contact is opened.A circuit breaker includes: a movable contactor 17 provided with a movable ...  
JP2023100148A
To obtain a main circuit conductor capable of securing long-term reliability.A main circuit conductor comprises: a power conduction conductor 5 provided with a penetration hole 5a; and a rivet contact point 20 that is inserted into the p...  
JP2023094823A
To provide a circuit breaker in which a device such as a distribution board to be housed can be reduced in size, and which has excellent operability.A circuit breaker 10 includes: a stator 24 that is connected to a power supply side term...  
JP2023092931A
To provide a detection device for a breaker, a detection unit, a power failure detection system, a detection program, and a detection method that can be used for blackout accidents.A detection device detects the energized state of the sw...  
JP7302498B2
To prevent an accessory device from coming off from a circuit breaker when a wire is pulled out from a spring terminal even when a wire insertion/pull-out direction of the spring terminal provided in the accessory device is the same as a...  
JP2023091166A
To provide an electromagnetic trip device capable of assisting a circuit breaker to quickly open a contact portion when an abnormal current occurs.An electromagnetic trip device 10 includes a bottom portion 12 and a side wall portion 13 ...  
JP7297638B2
To provide a circuit breaker capable of reliably preventing the burning of a coil when reversely connected, without providing a switch to protect the coil.A circuit breaker 10 includes: an electrical circuit opening/closing part 40 that ...  
JP7293509B2
A crossbar assembly and a trip assembly comprising same are disclosed. The crossbar assembly according to an embodiment of the present invention comprises a crossbar and an instant bar. The crossbar and the instant bar can be rotatably c...  
JP2023080717A
To provide a plug-in adapter which is adaptable to a plurality of breakers in different structures and prevents occurrence of an electrical connection defect.A plug-in adapter of the present invention is configured to fix a breaker 4, wh...  
JP7289231B2
To provide a circuit breaker capable of extinguishing an arc more quickly while causing an arc extinguishing device to show its performance more greatly.A circuit breaker 10 includes a stationary contactor 5 provided with a stationary co...  
JP2023077502A
To provide a circuit breaker comprising a protection cover which can surely insulate a movable contactor without dropping even if a tip end side of the movable contactor is deformed without deteriorating a breaking performance.A circuit ...  
JP2023522631A
TECHNICAL FIELD The present invention relates to the technical field of low-voltage terminal-side electrical appliances, particularly to a circuit breaker, and includes a circuit breaker housing, a locking mechanism, a release mechanism,...  
JP2023074910A
To provide a circuit breaker which can easily grip a position of a terminal fitting at the current point.A circuit breaker comprises: a first right electrode display part 34B for displaying that a first terminal member 10 is positioned a...  
JP7282406B2
To provide a circuit breaker having good responsiveness at the time of blockage.A circuit breaker includes a contact part of a circuit, an attraction body becoming an electromagnet by the current of the circuit, and a movable body capabl...  
JP2023073489A
To provide a circuit breaker capable of restraining plastic-deformation of a bimetal.A circuit breaker includes a contact part for opening and closing a circuitry, an attraction body becoming an electromagnet by the electric current of t...  
JP2023521717A
The present invention relates to the technical field of low voltage terminal appliances, in particular circuit breakers. The circuit breaker housing has a switch-on button hole and a switch-off button hole provided thereon, and the butto...  
JP7278490B2
The purpose of the present invention is to achieve an insulating material molded body (10) for arc suppression, said insulating material molded body being capable of suppressing decrease in the surface insulation performance when exposed...  
JP2023069547A
To improve noise resistance of an abnormality detection device.A circuit breaker A1 comprises: a main contact point (fixing contact points 20A and 20B, and movable contacts 21A and 21B); a switch mechanism 4 that switches the main contac...  
JP7274927B2
To provide a circuit breaker capable of reducing the occurrence of wiring defects even when a zero-phase current transformer is housed at the inside thereof.A circuit breaker includes a trip mechanism that cuts off the electric circuit b...  
JP2023066669A
To provide a current interruption part in which an interruption performance is improved.A case 6 is constructed by: a first division case 7 which is detachably divided in a width direction, and having a side wall and peripheral walls 7b ...  
JP7266236B2
To provide a circuit breaker drive system achievable with a simple configuration.A circuit breaker drive system 100 is a circuit breaker drive system that is disposed outside of the circuit breaker 20 to drive the circuit breaker 20. The...  
JP7261500B2
To provide a circuit breaker capable of restraining plastic-deformation of a bimetal.A circuit breaker includes a contact part for opening and closing a circuitry, an attraction body becoming an electromagnet by the electric current of t...  
JP2023056796A
To provide an air circuit breaker capable of preventing breakage of a housing by ensuring a high pressure loss in a flow path where the inflow of blocking gas is assumed to flow into a mechanical portion.In accordance with the rotation o...  
JP7258431B2
To prevent the length of an accessory device from becoming longer in a side where a terminal of one switch extends even when a communication line connected to the one switch of two switches adjacently arranged in a horizontal direction o...  
JP2023051300A
To obtain a current transformer-integrated current sensor capable of suppressing the degradation of detection accuracy of currents due to a coil for current detection.A current transformer-integrated current sensor 3 comprises: a current...  
JP2023051349A
To suppress displacement of a center axis of a screw member with respect to a center of a storage recess in a contact device comprising the storage recess and the screw member which is stored in the storage recess.A contact device compri...  
JP7249688B2
To provide a circuit breaker capable of blocking a cable way quickly when an excessive current flows through the cable way.A circuit breaker includes a case 2, a cable way for connection with terminals T1, T2 on the power supply side and...  
JP7249878B2
To provide a circuit breaker for a wiring which is capable of easily performing an insulation resistance measurement test, etc. even if a load wiring is connected to a load side terminal.An opening of an insertion hole 6 on a front side ...  
JP2023044401A
To provide a circuit breaker capable of reducing the influence of electromagnetic repulsion that slows down the opening speed of a movable contact without requiring an additional component such as a magnetic shield material.A circuit bre...  
JP7248955B2
To provide a circuit breaker comprising an arc-extinguishing device capable of blocking even a large current or a small current.A circuit breaker comprises: a main body case; a stationary contactor 100 extending from a stationary contact...  
JP7247796B2
To provide a bimetal device that can facilitate a mounting work of a heater on a bimetal and eliminate a requirement for strict dimensional control of the winding position of the heater on the bimetal.A bimetal device 25 includes a bimet...  
JP2023511707A
The circuit breaker (10) includes a current sensor (206) having a normal sensor output and an overcurrent detection output, a closed state that allows current to flow through the circuit breaker, and an open state that cuts off the curre...  
JP2023030798A
To satisfactorily suppress the deterioration in interphase insulation resistance.A circuit breaker 1 includes: a circuit breaker body made of an insulating material; a stator independently arranged phase-by-phase on the circuit breaker b...  
JP7233355B2
To obtain an installation terminal stage for a circuit breaker, capable of measuring a current flowing in a cable run.An installation terminal stage 20 for a circuit breaker, comprises: a plurality of power supply side conductors 41a, 41...  

Matches 601 - 650 out of 12,215