Patent ID: 9293275
Filing Date: 2016-03-22
CPC Classification: H01H

Claim Text:
1. A molded case circuit breaker comprising: an upper external box defining a rear space; a lower external box coupled with the upper external box and defining a front space divided from the rear space together with the upper external box; a fixed contact unit provided on one side of the front space and connected to electrically connected to one of a power supply and a load; a movable contact unit installed in the front space to be movable and being in contact with the fixed contact unit or being separated from the fixed contact unit; a switching device installed in the rear space and operating to allow the movable contact unit to be in contact with the fixed contact unit or to be separated from the fixed contact unit; an operation device installed in the front space and the rear space and transferring the movable contact unit according to operation of the switching device; and an electrode shaft installed on one side of the upper external box, corresponding to an outside of the front space, wherein the operation device comprises: wherein the upper external box is provided with a shaft mounting groove formed by denting a part of a top surface of the upper external box downwards to allow the electrode shaft to be mounted thereon, and wherein the upper external box is provided with a link penetration slot formed by cutting a part of the shaft mounting groove to allow the second link element fixed to the electrode shaft to penetrate thereinto.