Operating mechanism with adjustment of contact force

摘要

Operating mechanism for operating a multi-pole circuit breaker assembly. For each circuit breaker (18) in the multi-pole circuit breaker assembly, the following elements are provided: a connection assembly for connection to an operating shaft (109) of the circuit breaker (18), an actuator (4) for changing between an ON and OFF state of the operating mechanism, a translation assembly for transferring a movement of the actuator (4) to the connection assembly, and a compression spring (103) exerting a force on the operating shaft (109) in the ON state of the operating mechanism. The force exerted by the compression spring (103) is adjustable by a force setting assembly (100, 104) in a continuous manner.