Circuit breaker handle block

摘要

A circuit breaker (10) includes a crank (208) for coupling a rotary arm breaker mechanism to the cradle (210). The crank (208) has a protrusion which cooperates with a handle yoke (88) to restrict movement of the operating handle (44) when the contacts (72, 74) of the circuit breaker (10) are welded. The crank (208) protrusion is arranged such that it does not interfere with the handle (44) under normal operating conditions.