| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground-fault interrupter capable of eliminating possibility of reverse connection by an operator while a work of measuring insulation resistance of a load is easy. SOLUTION: There are provided an apparatus body 1 where a pair of plug-in type input terminals T1 and T2, a pair of quick-connection type output terminals 10A and 10B, and a handle 6 are arranged, 2-pole contact parts 2A, 3A, 2B, and 3B opened/closed by the handle, a zero-phase current transformer ZCT, a test switch (78), a leakage detector 51 which, connected to the cable way between the input/output terminals of the poles, outputs a leakage detection signal when the prescribed output of the zero-phase current transformer reaches a prescribed time, and a pull-out devices (5, 41, 42, and 43) which forcedly open the contact. The connection points of the leakage detection device are closer to an input terminal side than to contacts of the poles. COPYRIGHT: (C)2003,JPO
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