BREAKER

A supporting movable member is connected to a moving contactor. A lever coupled with the supporting movable member is rotatably supported on a lever shaft. A second coupling link is rotatably coupledwith a first coupling link rotatably coupled with the lever. An electromagnet displaces a plunger rotatably coupled with the second coupling link, and displaces the supporting movable member from a non-insertion position through an insertion start position to an insertion complete position. A holding unit exerts a holding force so as to hold the angle of the second coupling link to the first coupling link at a first set angle. A limiting member limits the rotation of the first coupling link in relation to the lever in the direction in which the angle of the first coupling link to the lever decreases below a second set angle. 支撑可动部件与可动接触件连接。与支撑可动部件连结的杠杆能够旋转地支撑于杠杆轴。在能够旋转地与杠杆连结的第1连结连杆处，将第2连结连杆能够旋转地连结。电磁铁使能够旋转地与第2连结连杆连结的柱塞位移，使支撑可动部件从非接通位置经过接通开始位置而向接通完成位置位移。保持体发挥保持力，以将第2连结连杆相对于第1连结连杆的角度保持为第1设定角度。限制部件对第1连结连杆相对于杠杆的向下述方向的