Patent ID: 9741520
Date: 2017-08-22
CPC Classifications: H01H

Claim:
1. A molded case circuit breaker comprising a shaft configured to rotatably support a movable contactor that is brought into contact with or separated from a fixed contactor, a lower link rotatably connected to a side of the shaft, a lever connected to a side of the lower link, and an upper link rotatably connected to the lower link at an inner side of the lever, wherein the upper link comprises an anti-rotation member, wherein the lever comprises a locking member formed in a shape of a in or a bar at the inner side, wherein the locking member is secured by the anti-rotation member when the lever is rotated toward an OFF position and the fixed contactor contacts the movable contactor such that rotation of the lever to the OFF position is prevented, wherein the anti-rotation member comprises: wherein at least one rigidity-reinforcing plate is provided at a connected portion between the upper link and the supporting plate.