| 摘要 |
A power circuit-switching device is proposed, which includes: a frame body; at least an electric control unit having a control member, provided with a plurality of first positioning portions and first coupling portions; and at least an operative element having an operating face and a coupling face opposite to the operating face, the coupling face having a plurality of second positioning portions and second coupling portions formed thereon in an corresponding manner, such that each of the second coupling portions can be coupled to first coupling portions, and each of the second positioning portions can be coupled to first positioning portions respectively, thereby providing for easy alignment in installation and avoiding misalignments and misuse that would otherwise cause damage to the components or electrical hazards.
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