| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate the manufacture of a multi-circuit switch, for reducing cost, shortening a period up to its delivery time, etc., by making it possible to to use switches of the same current rating for a main circuit switch and branch circuit switches. SOLUTION: The conduction ratio (conduction capacity) is made larger by making the cross sectional areas and surface areas of conductive bus bars 24a, 24b, 35u drawn out from or led into a main circuit switch 1, out of unit-type switches, larger than those of load-side conductive bus bars 36u, 37u, 38u in branch circuit switches 2, 3, 4.</p> |
