| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground leakage breaker in which a leakage unit is housed in one part of a main part mold cover, and which is easy in installation of accessory devices and part replacement, and is of low cost and excellent in assembling performance. SOLUTION: The circuit breaker has a structure in which a ground leakage detection/tripping element 100 that includes a leakage detection/tripping circuit 11, a leakage tripping device 13, a leakage display 15, and a leakage testing part 20 or the like can be housed in a housing space 200 inside auxiliary covers 14, 14' provided at a part of the circuit breaker, in one part of a main part mold cover 12 common with the wiring circuit breaker. COPYRIGHT: (C)2006,JPO&NCIPI
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