| 摘要 |
<p>The breaker has a knee lever spring clamped between a knee lever pin and an upper end of a handle lever (8). Stationary and movable contacts (2, 3) of a mains supply circuit are switched by ON and OFF operation of a handle. A latch (6) is triggered by detaching an engaging unit (11) with occurrence of overcurrent. An upper hinge (12) and the engaging unit are pivotably and relocatably connected with each other, so that the engaging unit is rotatable with the contact (3) that is welded with the contact (2), during a release operation without being restrained by the hinge in a release position.</p> |
