| 摘要 |
PROBLEM TO BE SOLVED: To enable to easily stop rotating of a hook or a lower link at a predetermined position without using a new component in a circuit breaker, and to use a space effectively. SOLUTION: A hook 15 of an opening and closing tripping mechanism part 8 is arranged between a fixed frame 13 and an upper link 18. A lower space of the hook 15 can be used by arranging a lower link 19 between the fixed frame 13 and the upper link 18. Stoppers 13A, 13B of the hook and the lower link are provided on the fixed frame 13. COPYRIGHT: (C)2007,JPO&INPIT
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