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JP2011065809 |
To obtain a compact circuit breaker with excellent current-limiting performance by enabling to effectively utilize a plurality of arc-extinguishing plates installed for generation of high arc voltage, through improvement of degradation o...
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JP2011060441 |
To provide a circuit breaker capable of enhancing current limiting performance and breaking performance without adjusting biasing force of a contact pressure spring which makes a second movable contactor return to a closed pole position....
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JP2011054401 |
To provide a circuit breaker which can rapidly discharge high-temperature gas generated in short-circuit break from the vicinity of a contact to an outside of a body, and a distribution board using the circuit breaker.The circuit breaker...
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JP2011054569 |
To provide a slide-type movable contactor assembly of a circuit breaker capable of suppressing resistance and heat generation to a minimum by increasing the contact pressure with the movable contactor in an energized state.The slide-type...
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JP2011048907 |
To provide a circuit breaker which can minimize structural changes including casing, even in case a stud material (thermal conductivity) is changed.The stud 20 has a base portion 21 accommodated inside a case 2, and a protrusion 22 proje...
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JP2011048906 |
To provide a circuit breaker capable of preventing malfunctioning of bimetal even when and in case studs are changed to those with different thermal conductivities, as well as an adjusting method of the same.A plurality of grooves 35 are...
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JP2011040204 |
To solve the following problem: first and second frame bodies have to be secured by a screw, for example, so as not to cause them to come off discretely, and it is necessary to separately equip a structure for limiting spread thereof by ...
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JP2011029083 |
To provide a breaker unit of two circuits mounting type, which can be mounted on mounting rails of the same width as that of a breaker unit of one circuit mounting type.The breaker unit 1 of the two circuits mounting type is composed of ...
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JP2011027679 |
To solve the following problems: when fixing on a bottom plate of a distribution board, a conventional current detector needs to secure a space for attachment thereof, and a wiring attachment work thereof takes time and effort.A magnetic...
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JP2011023372 |
To provide a circuit breaker which has a function to prevent opening and closing of an accessory cover in an On state, secures a housing space of an internal accessory device, and has a high design freedom.The circuit breaker includes a ...
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JP2011018610 |
To obtain a mounting device of an electric apparatus capable of elongating an effective length of an elastic body, and forming a space-saving structure.A mounting hole 1f in the electric apparatus for a mounting screw 4 to fix the electr...
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JP2011014350 |
To provide a circuit breaker with a structure which introduces arc generated in a pair of contacts to a grid by running by runner conductors, wherein the arc is moved efficiently.The circuit breaker includes: a fixed contactor 3A having ...
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JP2011014522 |
To provide a multipolar circuit breaker causing no problem such as instability of tripping operation, even when deviations are produced in the deformation speeds of bimetals in tripping mechanisms adjacent to each other.In this multipola...
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JP2011014246 |
To provide a circuit breaker with strength of a case secured through a simple structure.The circuit breaker 1 includes a fixed contactor 50 with a fixed contact 60 fitted, a movable contactor 30 with a movable contact 40 fitted and for d...
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JP2011014431 |
To provide an externally-operated handle unit that is improved such that the handle can be locked or released by adding only a simple lock pin to the interior of a handle knob and pushing an alternate operation mode lock plate, which is ...
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JP2011008915 |
To provide a molding method for improving a yield of conductive material to be used in the molding method for a moving member receptacle for a movable contact apparatus of a circuit breaker for an electronic circuit.The moving member rec...
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JP2011009152 |
To provide an electronic circuit breaker capable of normally renewing timing characteristics even when supply of power from a current transformer to detect a current flowing in a circuit stops while renewing the timing characteristics.Th...
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JP2011009113 |
To provide a circuit breaker with a terminal device wherein which the circuit breaker is chosen and connected to which conductor is easily grasped when the terminal device of the circuit breaker and an external conductor are selectively ...
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JP2011009161 |
To provide a circuit breaker having improved breaking performance by suppressing bouncing action of a movable contact.This circuit breaker includes: a movable contact 4 brought into contact with and separated from a stationary contact 3;...
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JP2011003431 |
To provide a circuit breaker in which the angle of a trigger lever to be rotated by a bimetal required for triggering action can be smaller than those of conventional types to reduce the transmission loss of rotating force from the trigg...
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JP2011003419 |
To provide an overcurrent trip mechanism which meets a JIS standard needed for a breaker admitting a small rated current and a safety standard for a motor protective switch as well.The overcurrent trip mechanism includes a bimetal 5 whic...
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JP2010287376 |
To provide a circuit breaker preventing itself from falling off due to shock of a movable contact point firmly fixed to a movable contactor in stopping the movable contactor at an open-pole terminal position.A pair of movable contact poi...
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JP2010287423 |
To provide an insertion terminal device for a switch, in which a switch body and the insertion terminal device are connected by a clip terminal on a switch body side pinching a blade terminal on an insertion terminal device side, and whi...
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JP2010287375 |
To provide a circuit breaker preventing itself from falling off due to shock of a movable contact point firmly fixed to a movable contactor in stopping the movable contactor at an open-pole terminal position.At a tip-side lower part of a...
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JP2010287374 |
To provide a circuit breaker preventing itself from falling off due to shock of a movable contact point firmly fixed to a movable contactor in stopping the movable contactor at an open-pole terminal position.At a tip-side lower part of a...
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JP2010287331 |
To provide a circuit breaker capable of not only reducing a size but also reducing the component costs while ensuring the phase-to-phase insulation performance.A handle arm is formed of a metal plate and has a rotation center portion for...
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JP2010287377 |
To provide a circuit breaker preventing a movable contact of a movable contactor from falling off in stopping the contactor at an open-pole terminal position.The circuit breaker is provided with a first fixed contact 6a, a second fixed c...
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JP2010287620 |
To provide an electromagnetic coil device such that even coil winding formed of a thin strand includes a highly reliable reinforced winding terminal portion and a reinforcing operation is easily performed even for coil winding formed of ...
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JP2010282919 |
To attain a circuit breaker with a compact instantaneous tripping electromagnet device having an action for strengthening contact opening force at the time of a tripping operation caused by overcurrent.The instantaneous tripping electrom...
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JP2010282814 |
To provide an electrical appliance wherein it is easy to directly comprehend which electrical appliance is selectively connected to which conductor, which improves workability such as switching and confirmation of a terminal device when ...
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JP2010282912 |
To provide an electromagnetic device of a circuit breaker, the electromagnetic device miniaturizing the circuit breaker by lessening an arrangement space of the electromagnetic device, and improving assembling workability.The electromagn...
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JP2010282745 |
To provide a circuit breaker in which an excess current trip element is set closer to a power supply without changing a volume of the excess current trip element.The circuit breaker includes a handle having a grip that is fixed to a hand...
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JP2010282787 |
To provide a thermal tripping device for preventing a change in the curving characteristics of a bimetal when assembled.The thermal tripping device includes the bimetal 11 to be heated by an overcurrent, and a conductive extension member...
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JP2010278011 |
To generate an electric signal using a circuit breaker 1 equipped with a manual operation toggle 11 rotatable around a single axis and an extension module 2 of an exchangeable plug-in type, the circuit breaker 1 including a locking means...
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JP2010272326 |
To provide a circuit breaker in which it is easy to take in an arc into an arc extinguishing device, a space for the arc extinguishing device is increased, and which is superior in arc enlargement effect to utilize a magnetic attracting ...
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JP2010272482 |
To provide a circuit breaker in which a high current limiting effect is obtained as an arc is extended at the time of open circuit and damages of contacts are suppressed.The circuit breaker 1 is provided with a first fixed contactor 1 ha...
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JP2010272451 |
To provide a circuit breaker in which a current limiting effect is enhanced by extending arc at circuit-opening and damages of contacts are suppressed.The circuit breaker 1 is provided with a first fixed contactor 1 having a first fixed ...
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JP2010257581 |
To provide an energizing information measuring and displaying device of a circuit breaker improved so that an existing measuring unit and an existing display unit can be used even for a circuit breaker of a model having a large frame siz...
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JP2010251121 |
To simplify an electrical relationship between secondary side terminals and conductive bars for voltage electrode.A branch breaker 1 includes: a body 11 that is attachable to each of both sides of the conductive bars in the direction int...
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JP2010251299 |
To provide a circuit breaker with improved current limiting performance even when an exhaust port is provided only on one side of a traveling conductor.The circuit breaker includes: a grid 3 provided inside an arc-extinguishing chamber 4...
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JP2010251049 |
To provide an electromagnet structure of an instantaneous tripping device which uses parts same as conventional ones except for an overcurrent tripping device in the circuit breaker, secures a predetermined stroke necessary for tripping,...
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JP2010251157 |
To obtain a circuit breaker in which a width of a conductor connectable to a terminal is widened and maintenance and repair of the inside are enabled by removing a cover even with the conductor in a mounted state.In order to mount a circ...
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JP2010251035 |
To provide an arc-gas exhaust structure for a circuit breaker capable of reducing the number of components and man-hours for assembling compared with existing structures, and reducing cost and securing high security.The circuit breaker h...
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JP2010244701 |
To provide a circuit breaker for performing overcurrent adjustment without passage of electricity.The breaker includes a mechanism of shutting off the circuit as a bimetal strikes an engagement piece acting on a handle operating a movabl...
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JP2010225504 |
To effectively exhaust an arc gas outside a breaker case without making foreign matters invade inside the breaker case.A separator 9 for supporting a movable contact is arranged inside the breaker case 2, and the separator 9 moves up and...
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JP2010225445 |
To provide a circuit breaker for easily and safely carrying out connection and removal of an external connection line of a main circuit terminal, and further screwing work of terminal screws, even with the external connection line connec...
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JP2010218765 |
To provide an overcurrent tripping device of a circuit breaker which prevents a delay in overcurrent tripping action to improve current-breaking performance.Between a heater 9c disposed on a current path and a trip bar 24 of a switching ...
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JP2010219033 |
To provide a circuit breaker capable of enhancing a flow-limiting performance without adjusting a biasing force of a contact-pressure spring which returns a movable contact to a closed pole position.The circuit breaker is provided with a...
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JP2010212015 |
To prevent wear of a contact point of a second movable contact in a repulsion type circuit breaker caused by an arc without increasing the number of parts.An end of a terminal conductor 20 having a terminal part 20a at another end is arr...
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JP2010205624 |
To provide a switch for preventing a decrease in gas exhaust efficiency and a gas backflow on the upper side of a circuit interrupter to thereby prevent uneven pressure.The switch includes, within a housing 2 thereof, a fixed contact 3; ...
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