| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a repulsion-type circuit breaker which is excellent in assemblability and maintainability and is capable of cutting down costs. <P>SOLUTION: A mold case for housing components comprises: a case body 54; and a cover 55 which is mounted on the case body. The case body 54 comprises: a bottom case 56 which forms a bottom portion of a circuit breaker; and an intermediate case 57 which is mounted on the bottom case and has a partition wall shielding between the bottom case and the intermediate case. A power supply-side terminal plate 3 and a second movable contact 4 are incorporated in the bottom case. A first movable contact 5, a load-side terminal plate 9, a contactor part 52, and an arc-extinguishing chamber 6 are incorporated in the intermediate case. <P>COPYRIGHT: (C)2012,JPO&INPIT |
