To provide a repulsion-type circuit breaker which is excellent in assemblability and maintainability and is capable of cutting down costs.
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.
ASAKAWA KOJI
SATO AKIFUMI
DEISHIRUWAA HEMANTA
YAMAZAKI TOMOO
| JPH0574316A | 1993-03-26 | |||
| JP2009140838A | 2009-06-25 |
Hide Tanaka Tetsu