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JP2007149528 |
To obtain a structure capable of preventing a slide contact face from instantaneously opening by an electromagnetic repulsive force generated by a large current regardless of a spring load of a compression spring.In a circuit breaker equ...
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JP2007149481 |
To easily confirm the operation of an overcurrent detection circuit, in an electronic circuit breaker.The electronic circuit breaker is structured such that a second coil for executing an operation test of the overcurrent detection circu...
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JP2007149586 |
To provide a circuit breaker 1 facilitating voltage changeover work, and arrangeable in a small space.This circuit breaker is characterized in that three load-side terminals 5 are each formed by using a quick connection terminal; a seali...
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JP2007149584 |
To provide a terminal structure of a circuit breaker allowing a wire to be easily inserted and extracted with a simple structure.The circuit breaker is characterized in that each load-side terminal 5 is formed by using a quick connection...
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JP2007149486 |
To provide a circuit breaker reducible in size having high cutoff performance.This circuit breaker is constituted such that ablation members arranged in a paired form at height positions being positions on both side surface sides of a mo...
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JP2007149585 |
To provide a circuit breaker facilitating voltage changeover work, and arrangeable in a small space.The structure of this circuit breaker is of a type where voltage changeover is executed by forming each of three load-side terminals 5 by...
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JP3966058 |
To make a visual check that a circuit breaker performs an instantaneous tripping operation due to a short circuit current without using an alarm switch of an accessory device and to enhance safety by holding a tripping mechanism to a tri...
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JP2007143242 |
To provide a distribution switchboard wherein, when a service interruption occurs in the nighttime or a circuit breaker is tripped or on other like occasions, the position of the distribution switchboard and the position of the tripped c...
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JP2007141708 |
To provide a breaker which easily carries out reloading operation even in darkness when the breaker is actuated.In the breaker A in which an operation piece 2 is vertically rotated with a fulcrum as the center, and which activates a circ...
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JP2007134072 |
To obtain a circuit breaker driving arc generated between a movable contact and a fixed contact promptly toward an arc extinguishing device, having a high current limiting performance.The circuit breaker is provided with an insulating ca...
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JP2007134148 |
To enhance safety by preventing an operation knob of a handle device from moving to an off-display position in an abnormal state that a contact of a circuit breaker is welded regarding an external operation handle device provided with an...
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JP2007134117 |
To provide a connection display mechanism of a plug-in terminal capable of displaying to which bus bars the plug-in terminal is connected in the case the plug-in terminal is rotated and phase-switched over to the bus bars laminated in th...
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JP3962201 |
To secure safety of an inspection work of an electric circuit so that a lock condition of a trip button cannot be attained in the case an open-close contact point of a circuit breaker is welded. If a keylock plate 51 is drawn out in a st...
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JP3959941 |
To improve the structure of a signal transmitting component, so as to enable a mechanical output signal from a circuit breaker body to be accurately transmitted to an auxiliary switch and an alarm switch, which are installed as attachmen...
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JP3962195 |
To provide a circuit breaker of favorable switching performance with promotion of extinction of arc. A downward notch 2b having an opening at distant position from a switching contact 10 to the direction of an arc extinguishing device is...
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JP3962206 |
To provide a circuit breaker, an auxiliary cover which can be fixed without a tool with ease and reliability when an inner attachment is mounted. A clamp component 8, which has locking legs 9 of elasticity facing each other, is mounted o...
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JP3959677 |
To allow reuse of an insulating vessel material, related to a circuit breaker integrated with an insulating vessel comprising a case and a cover. Insulating vessels 1 and 2 are formed from thermo-plastic resin which can be melted/re-mold...
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JP3959684 |
To prevent coupling by engagement of a lower part housing and an intermediate housing from breaking off because of the increase of inner pressure in a current break. In a circuit breaker in which the intermediate housing 1 and the lower ...
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JP3959888 |
To enhance assemblage property, and productivity of a circuit breaker, and furthermore improve an assembling structure so as to flexibly cope with a rated specification change and the like. A circuit breaker incorporating each phase main...
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JP2007128794 |
To provide an open close mechanism of a circuit breaker capable of properly stopping a movable contact at a prescribed opening position, without directly adding collision load to a mold resin case at off operation and trip action of a ha...
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JP2007127550 |
To simply and safely test a ground leakage breaker built in an electric work drum, using a ground leakage breaker tester.In this method of testing the ground leakage breaker 20 built in the electric work drum, first and second electric p...
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JP2007128795 |
To provide a relay terminal device for a circuit breaker capable of easily coping with use of a round pressure terminal when applied to a power distribution installation wherein several sets of circuit breakers are juxtaposed and used fo...
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JP3958476 |
To provide a circuit breaker for wiring that may simplify the assembling process with reduced mounting errors. A circuit breaker comprises an arc-extinguishing device 2 arranged in the upper region, stationary contact 3 below the arc-ext...
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JP2007122973 |
To provide an engine power generator free from such a risk that a claw holding a protector is broken and the circuit protector comes off from a power distribution panel caused by the inclination of a circuit protector mounted to a power ...
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JP2007122928 |
To provide a circuit breaker capable of connecting a plurality of loads different from one another in necessity and types of remote control.The circuit breaker is provided with input terminals 1 connected to a power supply, two sets of o...
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JP2007122988 |
To provide a dummy unit capable of improving mounting strength of a connection base to a connection mounting plate when the number of using relay units is less than the maximum number of the relay units connectable to the connection base...
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JP3955706 |
To provide a correction method by which measurement results with few errors can be obtained, regardless of the combination of a circuit breaker main part and a measurement display unit. Correction values for errors produced in a measurem...
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JP3952855 |
To improve an auxiliary switching unit of a type incorporating an auxiliary contact mechanism and an alarm contact mechanism so that the alarm contact mechanism can be used as the auxiliary contact mechanism with just a setting change of...
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JP3955702 |
To obtain a compact and low-cost circuit breaker that is superior in the current-limiting property. This breaker rapidly separates electrodes with electromagnetic repulsive force of the current flowing in the arm of moving piece 1 and fi...
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JP2007115572 |
To provide a compact switch for a withstand voltage test of an earth leakage breaker additionally installable in a limited space in a breaker body case without changing the layout of main components.This manual operation type switch 11 f...
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JP2007115539 |
To enhance strength and safety of component parts by avoiding concentration of an impact load added from a movable contactor on a stopper at a pole-opening operation of a circuit breaker and further, improve the stopper so as not to adve...
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JP2007115540 |
To improve a stopper mechanism of a movable contactor provided in an arc-extinguishing chamber so as to enhance strength and safety of component parts by avoiding concentration of an impact load added from the movable contactor on the ch...
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JP2007115411 |
To provide a current breaking device (auto-reset breaker) capable of preventing an overcurrent caused by the occurrence of thunder from flowing into an electric circuit connected to the load side of a circuit breaker.The current breaking...
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JP3948212 |
To increase the displacement amount of a bimetal at a tip part and reduce a heating amount. This bimetal fixing device is used for a circuit breaker having a contact and a bimetal 10 having a base part fixed so that the tip part is displ...
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JP2007103123 |
To provide an electromagnetic tripping device of a circuit breaker capable of responding to a variety of instantaneous tripping current values while minimizing types of push springs when the instantaneous tripping current value is increa...
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JP2007103376 |
To provide a multipole wiring circuit breaker and its deformation prevention apparatus which effectively prevent any deformation of a drive shaft.The multipole wiring circuit breaker contains many single-pole circuit breaker units with s...
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JP2007103269 |
To improve a slit arc-extinguishing plate so as to suppress an excessive increase of an internal pressure of a breaker case by reducing a total generation amount of a pyrolysis gas generated from the slit arc-extinguishing plate at curre...
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JP2007103190 |
To provide breaking performance capable of corresponding to a high current and reducing a restriction of a maximum breaking current caused by mechanical strength of an arc-extinguishing chamber by suppressing an increase of an inner pres...
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JP3944502 |
To enable one display device to display load information of a plurality of circuits, bear and install two communication means previously borne on the measuring device side to the display device side so as to reduce the number, reduce a c...
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JP2007095556 |
To provide a circuit breaker wherein a wire is easily connected to a load side terminal formed by a quick connection terminal even if it is narrowly and thinly formed.The wire inserting part 11 of the load side terminal 2 used as a quick...
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JP3937672 |
To reduce a space for a temperature compensation bimetal and to increase efficiency of transferring an output to a switching device through a differential shifter mechanism from main bimetals. A thermomotive overload elimination device i...
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JP3937848 |
To provide a distribution board capable of improving appearance and safety at points missing a branch switch, and also capable of improving the overall assemblability. A distribution board 1 comprises a master switch 3, a plurality of br...
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JP2007087824 |
To provide a circuit breaker easy to clean while having an improved appearance, wherein dust is not easily accumulated around a handle.In this circuit breaker 1, the operating handle 10 is formed by a main body part 10c having a shaft pa...
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JP3934493 |
To provide an integrated circuit which is mounted with a plurality of modules with different specification revision possibility, performance and power consumption, realizes assignment of optimum processing and is logically reconfigured w...
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JP3933387 |
To provide a circuit breaker to which an auxiliary device is easily fitted. When a trip unit is operated, a latch axis 37 rotates and a trip indication arm 37c protrudes to operate an alarm switch. When a lacked voltage pull-out device i...
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JP3932010 |
To cope flexibly with specification changes by a customer for such attachment units mounted on the side face of the circuit breaker, such as an auxiliary switch, alarm switch or the like. In a common insulated container, consisting of a ...
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JP2007073257 |
To provide a breaker mounting structure capable of simply and firmly mounting a breaker, advantageous in terms of cost, and compatible with both mounting using engagement between synthetic resin members and mounting by a screw.The breake...
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JP2007073256 |
To provide a breaker mounting structure capable of simply and firmly fixing a breaker and advantageous in terms of cost.Insertion holes 17 each allowing insertion of a screw and a hook pin 3 formed of a synthetic resin are formed in a mo...
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JP3928610 |
To provide a method for detecting a spark in which burning of a cord and firing of peripheral objects can be prevented by discriminating between a normal load current and an abnormal current due to a spark occurring upon disconnection of...
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JP2007066791 |
To provide an external operation handle of a switch, which does not become bigger in size, while serving various kinds of operation locks.The external operation handle is provided with lock plates which are fitted removably on a part of ...
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