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JP5166730B2 |
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JP5167698B2 |
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JP5163473B2 |
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JP2013048122A |
To provide a wiring instrument with a leakage detection function that can prevent an entire power failure due to breaking of a master earth leakage breaker from occurring, and a system.The wiring instrument includes: a zero-phase-sequenc...
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JP5155687B2 |
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JP5150432B2 |
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JP5137242B2 |
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JP5140012B2 |
An earth leakage tester (300) generates a test signal for detecting an operation of an earth leakage detector (200) that detects an earth leakage current resulting from insulation resistance to earth from an output of a residual current ...
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JP5137226B2 |
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JP5134640B2 |
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JP5131900B2 |
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JP5117908B2 |
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JP5120982B2 |
The present invention comprises a micro-electromechanical system (MEMS) micro-switch array based current limiting enabled circuit interrupting apparatus. The apparatus comprising an over-current protective component, wherein the over-cur...
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JP5119063B2 |
In a wiring device which detects a leakage current in an electrical path connecting a commercial power supply and a load to interrupt the electrical path, the electrical leakage can reliably be interrupted even when the leakage current h...
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JP5121541B2 |
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JP5113798B2 |
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JP5115955B2 |
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JP5116582B2 |
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JP5115957B2 |
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JP5112196B2 |
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JP5108122B2 |
A circuit breaker comprises a magnetic trip mechanism (34) configured to provide a first mechanical driving force, a low voltage trip mechanism (36) configured to provide a second mechanical driving force, a first micro switch (32) confi...
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JP5109908B2 |
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JP5093642B2 |
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JP5094778B2 |
Disclosed herein is a breaker interlock system. The system includes, a trip unit for a breaker, and a breaker receptive of the trip unit. The breaker is closable when the trip unit is assembled thereto and the breaker is non-closable whe...
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JP2012243666A |
To provide a circuit breaker capable of preventing overheat of a plurality of terminals on a power supply side and a load side.In a power supply side terminal unit 2, detection circuits 24 for detecting contact failure of terminal compon...
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JP5091766B2 |
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JP5091800B2 |
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JP5091799B2 |
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JP2012234652A |
To obtain an electronic circuit breaker for protecting a lead wire while keeping flexibility of the lead wire.The electric circuit breaker comprises: a flexibility protective plate 10 held near a lead-out port 9 of plural lead wires 8 of...
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JP5081466B2 |
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JP5081467B2 |
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JP5073472B2 |
A circuit interrupter for interrupting current on a line conductor is provided. The circuit interrupter includes separable contacts, a trip mechanism, a bimetal, a microprocessor, a series arc detection sequence, a low-pass filter circui...
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JP5070949B2 |
The circuit breaker has an alarm switch (12) to emit a leakage alarm by free activation of a triggering unit (16) when default current circulates along an electric path. A cam type manipulating lever (20) connects a manipulating end elem...
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JP5072086B2 |
To provide an apparatus which can easily determine whether the state of the normal leak current of an electric path is in a range of being able to guarantee the detection accuracy of a requested grounding current for a resistor and also ...
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JP2012209063A |
To provide a plug-in connection device for preventing an effect of an accident in a very simple configuration, which does not affect other electric lines even if a ground fault occurs, without changing electric installation in the conven...
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JP5055387B2 |
A residual current device comprises a circuit (CT, 10, 12) for detecting a current imbalance in an AC supply to a load indicative of a residual current and providing a corresponding output. A relay RLA has contacts SW1 in the AC supply t...
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JP5052405B2 |
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JP5042895B2 |
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JP3178681U |
To provide an earth leakage breaker with a test button by a fire smoke alarm, which can be used automatically and stably without human intervention and can be easily and easily realized. An earth leakage breaker with a test button by a f...
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JP5030733B2 |
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JP5026853B2 |
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JP5026852B2 |
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JP5030894B2 |
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JP5021789B2 |
Disposed herein is an abnormal current detection circuit for circuit breaker, comprising a full-wave amplifier 202, a positive wave-period comparator 203 for comparing a positive wave-period amplification voltage signal with a positive w...
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JP5021420B2 |
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JP5021399B2 |
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JP5021439B2 |
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JP5014717B2 |
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JP5014716B2 |
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JP5014699B2 |
The device has a rectifying circuit to rectify a secondary current supplied by current sensors (T1-T3) and to supply a supply current (la). An electric power supply circuit has a storage capacitor (16) to electrically supply an actuator,...
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