| 摘要 |
PROBLEM TO BE SOLVED: To attain manufacturing cost reduction by bending a linear strip semiconductor for forming a switch connection part and a bar connection part. SOLUTION: A feed bars 7 is constituted of a strip conductor, and a protective cover 10 is fitted disposed in parallel, so as to keep its width direction perpendicular to the bottom surface of a box body 1, into respective feed bars 7a, b, c so as to cover them from the top box 2 side. For extension of a main switch 4 to its feeder bar side from its load side terminal, it is possible to bend a bending part 13 in the thickness direction and facilitate the bending work of the feed bar 7. Respective feed bars 7a, b, c have a switch connection part 11 connected to the load terminal of the main switch 4 and a bar connection part 12 connected to the feeder bar respectively, and the main switch 4 and the feeder bar are electrically-connected by the switch connection part 11 and the bar connection part 12. By cutting a linear plate-shaped conductive material to a length suitable to respective poles with the same metal mold, it is possible to form the feed bar 7, thereby attaining cost reduction. |
