| 摘要 |
PROBLEM TO BE SOLVED: To obtain a circuit breaker capable of reducing an individual difference in performance.SOLUTION: A connection shaft 34 is inserted to a rotation link 33 which is rotated around an axial line 32a of a link rotation shaft 32. The connection shaft 34 displaces movable contacts 20, 21 while being guided within a guide hole 41 by rotating the rotation link 33. On an inner surface of the guide hole 41, a closed-electrode-side guide surface 41a which guides the connection shaft 34 when rotating the rotation link 33 in such a direction that the movable contacts 20, 21 are brought into contact with fixed contacts 17, 18, and an opened-electrode-side guide surface 41b which guides the connection shaft 34 when rotating the rotation link 33 in such a direction that the movable contacts 20, 21 are separated from the fixed contacts 17, 18, are provided. The axial line 32a of the link rotation shaft 32 is disposed on a virtual plane including either the closed-electrode-side guide surface 41a or the opened-electrode-side guide surface 41b. |
