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JP2010092806 |
To suppress an overcurrent low and improve a current-limiting performance in order to reduce thermal and electromagnetic load to constituting parts in downsizing of a breaker.This circuit breaker is equipped with a fixed contactor furnis...
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JP2010086959 |
To provide a contact arm assembly, and to provide a method for assembling the contact arm assembly.The contact arm assembly (30) includes a first contact arm (56) having a first end portion (140) and a second end portion (142). A first c...
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JP2010080147 |
To improve the guard function by improving a structure to prevent an unexpected change of position of a handle, even if an object or a human being approaching from an open surface of a guard fence collides with a grip of an operation han...
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JP2010078460 |
To provide a power measuring display device capable of providing a measurement result safely only to a normal information confirmer, and to provide a breaker equipped with the same.The device includes a current measuring means 32 for mea...
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JP2010080074 |
To provide a terminal cover for a breaker capable of early specifying a heating source generated in the breaker caused by leakage or the like.This terminal cover 10 for the breaker has a connecting area insulating part 1 for covering and...
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JP2010080414 |
To allow any of an equipment attaching rail or an attaching means using a hooking piece and a plate spring to be applied when attaching a multipole circuit breaker, and for easy removal from an attaching plate, even if there exist a plur...
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JP2010080098 |
To shut off a short-circuit current by one instantaneous shutoff mechanism common to a plurality of lines by constituting an instantaneous shutoff mechanism in a compact shape with a small number of components.In an electronic breaker fo...
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JP2010080444 |
To provide a unitary current path having reduced cost by simplifying a current path structure for a circuit breaker to reduce the number of structural components required for assembly.The unitary current path structure 52 includes a term...
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JP2010073690 |
To provide a circuit breaker having an arc-extinguishing mechanism that improves the arc-extinguishing performance and reduces the manufacturing cost.An arc-extinguishing mechanism for a circuit breaker 20 includes an ablative device 50 ...
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JP2010067514 |
To provide a circuit breaker unit free from wear damage and melting down in a contact point, excellent in current carrying capability, and highly reliable for a long time, by shortening a time required to start breaking out a circuit bre...
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JP2010067550 |
To provide a handle lock device of a breaker which can be removed easily when it becomes unnecessary to lock a handle.The handle lock device mounted from an upper end of a handle 300 of the breaker 200 includes a knob 3 projecting on an ...
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JP2010067481 |
To provide a circuit breaker 1 in which engagement of a plurality of members constructing a case 2 is not broken by screwing a terminal screw 8 with a simple method.At least three continuous faces of the case 2 of the circuit breaker 1 a...
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JP2010061830 |
To improve a case structure of an electric operating device without any problem of visibility and operation at a nameplate and a setting operation part arranged on a front surface of a case of a circuit breaker, while the electric operat...
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JP2010062144 |
To provide a circuit breaker closing actuator and an operation method thereof.The closing actuator 34 is disposed to communicate and receive signals from a trip unit 46. The trip unit 46 includes a communication device to transmit and re...
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JP2010049988 |
To provide an uniterruptive testing device capable of carrying out an overcurrent circuit breaker functional test for a wiring circuit breaker while the wiring circuit breaker is connected with a main circuit.The uninterruptive testing d...
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JP2010044931 |
To provide a connection structure between electric appliances capable of simplifying shapes of linking conductors.The connection structure between electric appliances has: a plurality of belt plate-shaped linking conductors 2 whose respe...
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JP2010045267 |
To regulate variations of starting current value in a current-limiting operation, that occurs as individual difference in a manufactured SN-transition type superconducting current limiter so that they lie within a range from a non-actuat...
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JP2010040471 |
To provide an arc-extinguishing resin processed product capable of generating a thermal decomposition gas which has fewer contribution on internal pressure rise and can effectively arc-extinguish an arc generated at the time of circuit b...
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JP2010040325 |
To provide a handle lock device in which an installation structure is improved so that it can be mounted on a standard circuit breaker unit without adding a screw hole to a case cover of the circuit breaker unit.This is a handle lock dev...
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JP2010040435 |
To provide a simple and easily workable structure for fixing a breaker 1.In this structure for fixing the breaker, a fixing piece 8 for locking the breaker is fixed to a mounting plate. A fixing piece 6 is formed at one end of the mounti...
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JP2010034078 |
To provide a fixing structure on an apparatus fixing board where a plug-in type circuit breaker or the like can be fixed, wiring is not damaged, and a tool is not required for removal.Structures of the circuit breaker and fixing board ar...
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JP2010033792 |
To provide an overcurrent tripping regulation mechanism, with the smaller number of components, doing away with the need of waiting until a circuit breaker heated due to burn-in or the like returns to normal temperature in adjusting time...
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JP2010027334 |
To provide a circuit breaker having insulating barrier attaching structure, capable of fixing firmly an insulating barrier without reducing remarkably a strength of an interlayer wall, even when a wall thickness of the interlayer wall fo...
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JP2010027557 |
To provide a terminal structure for a circuit breaker which can put a quick-connection terminal side by side with a plug-in terminal without increasing the number of part items.In the terminal structure for the circuit breaker, an electr...
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JP2010027556 |
To provide a circuit breaker capable of reducing the number of components and saving time and effort for component management.Members for constituting a case are assembled, and a sealing pin is fixed by crimping the sealing pin so as not...
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JP2010027345 |
To provide a breaker, equipped with a flat handle and a press switch, can carry out raising and lowering operation and a pressing operation easily and surely.The breaker operation tool 10, used at the time of operating handles 51, 61, 71...
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JP2010021081 |
To provide an overcurrent circuit breaker and an interruption method of overcurrent, with sufficient consideration of operating characteristics depending on heat accumulation as being so-called an electronic type, and can surely carry ou...
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JP2010021044 |
To provide a terminal part structure of a circuit breaker, which can improve accuracy of an overcurrent tripping time with a simple structure.The terminal part structure of the circuit breaker includes a terminal seat arranged on an inne...
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JP2010022080 |
To provide a distribution switchboard for lower inlet wires wherein wiring work is facilitated and increase in the dimensions of a cabinet is suppressed.In the distribution switchboard for lower inlet wires, a branched circuit breaker 13...
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JP2010020975 |
To solve problems that if a continuous arc at arc-extinguishing plates does not maintain by effects of pressure gradient of the peripheries of the arc-extinguishing plates, an electromagnetic force or the like from a current path of the ...
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JP2010020953 |
To provide a circuit breaker unit 1 capable of preventing tracking phenomenon while assuring insulation.Relating to the circuit breaker unit 1, an insulating rib 7 formed of the material whose comparative tracking index is higher than a ...
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JP2010015724 |
To provide an arc extinguishing device of a circuit breaker unit in which scattering of metal particles into a space from a tip part of a fixed contactor to a movable contactor is restricted with a simple change and a short circuit break...
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JP2010011548 |
To provide a distribution gear wherein when a circuit breaker connected to a secondary electric circuit for supplying power to electronic equipment constantly requiring power supply is replaced, power supply to the electronic equipment i...
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JP2010009919 |
To easily carry out the electric connection of an earth leakage detecting circuit and a primary conductor penetrating a zero-phase current transformer, to reduce the number of parts for connection and assembling man-hours for electric co...
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JP2010010067 |
To provide a circuit breaker having high dust preventing performance and capable of obtaining a sufficient quantity of discharge air when arc is generated.This circuit breaker comprises a case 1 housing a pair of terminal parts; a fixed ...
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JP2010010015 |
To provide a structure of a circuit breaker 2 with a terminal unit which is surely made conductive with a simple structure.The structure of the circuit breaker 2 with the terminal unit is characterized in that a bottom face part 3 of a c...
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JP2010003609 |
To provide an overcurrent trip adjustment mechanism of fewer parts that can maintain a constant time to break an electrical path, by preventing variation in the position where an adjustment member abuts a load seat when the adjustment me...
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JP2010003420 |
To provide a conductive terminal device of a circuit breaker capable of simply making connection with a beltlike bus wire with small force even if capacity of the circuit breaker becomes large.The beltlike bus wire is held by tensional p...
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JP2009301756 |
To provide an overcurrent adjustment mechanism with the small number of parts capable of improving working efficiency by doing away with waiting time for a circuit breaker heated by electricity testing and the like to return to normal te...
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JP2009303370 |
To provide a home distribution board which is arranged, in such a manner that a primary feed breaker can be installed contiguously to a main breaker, while being separated from a branch breaker, without having to provide extra space in a...
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JP2009301993 |
To provide a handle lock device of a circuit breaker with easy mounting of a lock cover onto a handle of a breaker, and can sufficiently lock the handle with only the lock cover.The handle lock device is provided with a handle lock cover...
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JP2009295375 |
To surely maintain the condition that a lock member is mounted on a switch while avoiding the lost of the condition that a lock pin abuts on the lock member due to aging plastic deformation.The lock member 1 includes an insertion hole 12...
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JP2009295310 |
To provide an overcurrent tripping mechanism in the small number of components capable of obtaining constant time required until an electric path is broken, by installing a structure preventing fear that engagement pieces arranged astrid...
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JP2009295293 |
To provide a circuit breaker capable of reducing cost and achieving high breaking capacity.The circuit breaker is provided with: an insulating housing that is made of a synthetic resin and composed of a base and a cover; a fixed contact ...
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JP2009295419 |
To provide a resin processed article for arc-extinction which can generate a thermal decomposition gas capable of extinguishing efficiently arc generated at the time of circuit breaking and having small contribution to increase in intern...
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JP2009289484 |
To provide an interlock breaking mechanism for circuit breaker with improved durability.The interlocking breaking mechanism of a circuit breaker is structured of a plurality of circuit breakers 1, arranged in adjacency in the width direc...
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JP2009289704 |
To provide a connection board 8 of a circuit breaker unit 1 can reduce an action time lag by limiting an arrangement place and an arrangement angle of a bimetal 7 by a simple structure.In the circuit breaker unit 1, a load seat connectin...
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JP2009289485 |
To provide a remote controlled breaker allowing the off state of a main contact to be discriminated without looking at it directly.The remote controlled breaker includes the main contact turned off at the occurrence of an abnormal curren...
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JP2009289451 |
To obtain a structure having a mold resin case 1 free from damage even with high voltage generated due to arc at short circuit large-current break, in a circuit breaker equipped with the mold resin case 1.Arraying intervals of movable co...
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JP2009283324 |
To provide a protection element capable of properly protecting a protected equipment used under a direct current from excess current by eliminating migration of a low melting point alloy.The protection element has a resistor 8 and a pair...
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