| 摘要 |
PROBLEM TO BE SOLVED: To improve operation reliability and realize cost reduction by performing mechanically display of operation of the leakage protection plug by interlocking with the reset button. SOLUTION: The trip display board 20 provided inside the trip display aperture 6 of the cover 2 is contacted to a cam 5e formed on a reset button 5 through a slant face 20c and interlocked with the upward and downward movement of the reset button 5, and the trip display board 20 is depressed to the reset button 5 by a return spring 21. When tripping happens, the reset button 5 is released from the latch and goes up by the repulsive force of a main spring 19 and the trip display board 20 moves to the trip display position by the repulsive force of the return spring 21. Compared with the conventional part of electrical trip display using an auxiliary contact, there is no concern of contact failure of the auxiliary contact, and thereby the operation reliability is high.
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