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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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JP7233125B2 |
To provide a circuit breaker capable of improving responsiveness at the time of blockage.A circuit breaker includes a case 2, a cable way for connection with terminals T1, T2 on the power supply side, and the load side, a contact part 3 ...
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JP2023028349A |
To provide a circuit breaker capable of providing an auxiliary contact while suppressing the increase of the size.A circuit breaker comprises: a plurality of electric power supply side terminals that can be electrically connected to an e...
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JP7229594B2 |
To provide a circuit breaker with a terminal temperature display function that does not require major modification of a circuit breaker and is not easily affected by arc gas at the time of breaking.A circuit breaker having a terminal tem...
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JP7229876B2 |
To provide a circuit breaker having a display structure in which a neutral pole display can be performed on a side surface of a case at a molding stage of the case without adopting any slide structure when the case is molded.A circuit br...
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JP2023026023A |
To provide a distribution board and a breaker in which a work for leading wires into a master breaker and a branch breaker can be easily performed.In a distribution board 1, a primary side terminal 13A of a master breaker 3 and a seconda...
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JP2023024005A |
To increase the contact pressure of a movable contact in a circuit breaker without increasing the size of a product.A circuit breaker 11 includes stators 21, 22, a mover 23, and a fixed permanent magnet 26 for input. The stators 21, 22 i...
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JP2023023429A |
To improve the driving force to extend an arc and the ability to cool the arc and improve the shut-off performance in a circuit breaker.A circuit breaker 11 includes stators 21, 22, a mover 23, multiple arc-extinguishing grids 24, a pair...
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JP2023023625A |
To provide a connection failure detection circuit and a circuit breaker for detecting a poor connection even at voltage value where generated potential difference does not reach operating voltage of a photocoupler and unaffected by elect...
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JP7223633B2 |
To suppress lowering of contact pressure of a contact point of a phase other than a neutral phase.A circuit breaker 1 includes: a fixed contact piece 51 having a fixed contact point 52; a movable contact piece having a movable contact po...
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JP2023009517A |
To provide a circuit breaker which can be downsized by preventing an increase in the size of a housing space for an arc extinguisher.A circuit breaker comprises: a fixed contactor 2 having a fixed contact 21; a movable contactor 3, havin...
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JP2023003451A |
To provide a thermal tripping device capable of high-precision adjustment, a method for adjusting the thermal tripping device, and a circuit breaker having the thermal tripping device.A thermal tripping device 10 includes a trip bar 106 ...
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JP2023001411A |
To provide an erroneous operation prevention device capable of surely preventing erroneous operation of an operation lever by making it impossible to mount the erroneous operation prevention device at any position other than an appropria...
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JP7199049B2 |
To improve insulation performance of a switch device by securing an insulation distance between an L phase conductive wire and an N phase conductive wire.An outlet comprises: an opening/closing unit 70 for performing opening/closing of a...
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JP7195235B2 |
To obtain a quick connection terminal unit which can improve grounding flexibility with a quick connection terminal connected to a ground line.A quick connection terminal unit 2 is detachably attached to a body part 1 of a circuit breake...
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JP7194920B2 |
To improve productivity of an outlet by facilitating a work for accommodating a first unit and a second unit in a case in a switch device.An outlet comprises an opening/closing unit 70 for performing opening/closing of a power supply pat...
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JP2022189229A |
To reduce the burden of work to complete a circuit interrupter.A circuit interrupter 1 that extinguishes an arc that occurs when a contact is opened in a circuit breaker that has a fixed contact with a fixed contact and a movable contact...
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JP7190956B2 |
To provide a circuit breaker in which operation of switching to an open state when an overcurrent occurs can be materialized with a relatively simple configuration without increasing the number of components.A circuit breaker 10 comprise...
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JP7190924B2 |
To provide a circuit breaker which can be easily assembled while reducing a size of the circuit breaker.A circuit breaker 10 comprises: a housing 20; a plurality of loading side terminals 40 arranged in the housing 20; and a plurality of...
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JP2022186194A |
To make it easy to additionally connect a signal line to a terminal part without changing a state in which a main line is connected to the terminal part.A terminal cover 1 includes a signal line connection portion 11 to which a signal li...
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JP7187272B2 |
To provide a circuit breaker that reduces the thermal effect of arc gas generated when a short-circuit current flows.A circuit breaker 10 includes a movable contact 50 provided with a movable contact 51 that moves so as to come into cont...
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JP7187376B2 |
To provide a circuit breaker which does not require a structure for sliding a cover member on a front face of a body case.A guide groove 15 extending in a tilting direction parallel to a front face of a body case 4 is carved on a left fa...
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JP2022177493A |
To provide a terminal cover for a circuit breaker capable of being removed from the circuit breaker with ease.A terminal cover 1 for a circuit breaker 2 that has a measurement function and covers a terminal part 20 of the circuit breaker...
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JP2022175404A |
To comparatively easily enable an attachment of a cover at an appropriate position to a base, and to support a yoke at a position where a tripping function can be sufficiently exerted by attaching the cover to the base at the appropriate...
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JP2022174433A |
To suppress generation of failures caused by movement of a conductive gas from an upper part of a crossbar to a counter-contact part side of the crossbar.A circuit breaker comprises: a contact part consisting of a movable contact 14 prov...
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JP7175572B2 |
To provide a circuit breaker for a wiring, having a working efficiency in assembling of a movable contactor, and capable of preventing the movement of the contactor.A circuit breaker for a wiring, comprises: a movable contactor 18 having...
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JP2022172780A |
To prevent an electrical and electronic device arranged in a predetermined location from falling.A mounting structure for an electrical and electronic device includes: a first engagement part 11 capable of engaging with a first to-be-eng...
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JP7169373B2 |
A disconnecting device interrupts a direct current of a current path containing a hybrid switch which has a current-carrying mechanical contact system and a semiconductor switching system connected in parallel thereto. The contact system...
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JP2022165074A |
To provide a circuit breaker capable of preventing adhesion of soot, grids, and molten metal to a tripping device while suppressing an excessive pressure rise in an arc-extinguishing space.A circuit breaker includes an opening/closing un...
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JP3239651U |
A switchboard having at least a transformer and a plurality of branch breakers, in which the output terminal of the transformer and the input terminals of the plurality of branch breakers can be easily connected to reduce connection erro...
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JP7161034B2 |
This air circuit breaker cover comprises a cover body (20) and two or more engagement pieces (3) that are supported by the cover body (20) in a cantilever manner and engage with an object to be engaged with of an air circuit breaker. Eac...
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JP7158123B2 |
A circuit interrupting device 100 includes line and load terminals 116,118 and an interrupter 104, 106, 108 electrically coupled therebetween, the interrupter having open and closed conditions. The device also includes a fault detector 1...
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JP7149754B2 |
To provide a circuit breaker that suppresses wearing of a contact using a simple structure and extinguishes an arc swiftly.A circuit breaker 10a includes: a pair of main electrodes 28 that are capable of performing an approach and separa...
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JP7150178B2 |
The present disclosure includes: a fixed element (2) having a fixed contactor (1); a movable element (4) having a movable contactor (3) contactable with and separable from the fixed contactor (1); an arc extinguishing chamber (14) in whi...
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JP7149655B2 |
To provide a switch terminal, a switch, and a distribution board capable of reducing a defect in connecting a switch body and a crimp terminal caused by an operator's work.A switch terminal 30 includes a terminal holding member 31 and an...
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JP7143530B2 |
The invention relates to the field of low-voltage electric appliances, and more particularly, to a miniature circuit breaker, which includes a circuit breaker housing, a button mechanism, and an indicating apparatus, wherein the circuit ...
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JP7143531B2 |
The invention relates to the field of low-voltage electric appliances, and more particularly, to a miniature circuit breaker, which includes a circuit breaker housing, a button mechanism, an operating mechanism, a moving contact, and a s...
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JP2022138967A |
To provide a circuit breaker which can more surely extinguish an arc.A circuit breaker 10 includes: a pair of rod-like members 34 which are interlocked to a mover 20 and have mutually approaching tip parts during opening operation; a pla...
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JP7140836B2 |
The present device was conceived in order to resolve the aforementioned problem, and the objective thereof is to provide an arc chamber of a circuit breaker that enhances assemblability and ensures the consistency of the product. An arc ...
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JP7133985B2 |
To provide a circuit breaker capable of suppressing deformation of a separator.A circuit breaker 10 includes a plurality of movable contacts 50 provided to meet each of a plurality of stationary contacts. Contact/separation of the movabl...
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JP7133986B2 |
To provide a circuit breaker capable of facilitating avoiding a contact with any unintended other conductive component of a movable contact while rotatably retaining a movable contact.A circuit breaker 10 can connect and shut down a cabl...
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JP7130315B2 |
To provide a circuit breaker in which a projection is suppressed from being broken without performing special curved surface processing around a pore for the caulking of an arc runner.A circuit breaker includes a fixed contactor 2 includ...
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JP2022538442A |
The present invention is specifically an electrical switching system (24) for a circuit breaker (12) comprising a first contact (36) and longitudinally (26) relative to said first contact (36). A longitudinally (26) extending first bus b...
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