Control mechanism for a circuit breaker

摘要

Circuit breaker mechanism comprising a manually controlled part 40a acted upon by a knob 42 and a part 40c with an electromagnetic overcurrent tripping device 41 and a trip spring 65.The parts 40b, 40c act on a common lever 43 through a connecting rod 62 and a control lever 66 respectively. The part 40b is coupled to a lever 64 onto which the spring 65 exerts a torque, and also applies an opening torque to lever 66.