PURPOSE: A molded-case circuit breaker is provided to prevent temperature rise due to contact pressure reduction of a moving contactor by applying an elastic member creating tensile force to a crossbar making maintain the contact pressure of the moving contactor. CONSTITUTION: A fixed contact(200) is fixed and installed within the space unit of a case(100). A first cross passes through from the rear side of the case to the side of the case. A second crossbar is connected with a moving contact(300) and is installed which can be moved upward and downward along the radius of rotation of a specified range. A elastic member(600) regularly makes maintain contact pressure of the moving contact. The elastic member is respectively connected with the first cross bar and the second crossbar.
