Circuit breaker

摘要

Circuit breaker comprising a plurality of fixed contacts and a plurality of corresponding movable contacts. An actuating shaft is operatively connected to and actuates the plurality of movable contacts so as to couple with/separate from the corresponding fixed contacts. A supporting device for the actuating shaft is movably connected to a wall of the circuit breaker, with the actuating shaft which is operatively coupled to the supporting device so as to rotate around a rotation axis relative to the wall and the supporting device itself. The circuit breaker further comprises adjustment means for adjusting at least the position of the actuating shaft relative to the wall.