| 摘要 |
PROBLEM TO BE SOLVED: To provide a breaker containing a representable function indicating meaning of each ON- or OFF-switched state. SOLUTION: The breaker containing a ON-OFF switching means is characterized by that it is provided with a display section given near the ON-OFF switching means, a display storing means storing the content displayed on the display section, and a display selecting means allowing one desired display content to be selected from the display selecting means.
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