Circuit breaker with a control unit and an interrupting chamber and method for assembling the same

摘要

The circuit breaker has an interruption chamber (6) containing contacts (8,10) which are driven by a toothed shaft (12) and crown (18) within a contact lever (16). The contact lever is driven by rods (28) attached to a driving lever (20) which is connected to a driving shaft (4). The connection is made by a ring (24) with more teeth on the outside than inside which engages both the driving shaft and driving lever Independent claims are also included for the following : 1) A method for assembling and synchronizing the circuit breaker operating mechanism by using an auxiliary ring with radial marks to assist with the correct placement of the permanent ring 2) An auxiliary ring with internal teeth and external radial marks