Apparatus including a circuit breaker retaining mechanism for use in withdrawable circuit breakers and method of operating the same

摘要

A draw-out type circuit breaker apparatus (1) is provided and includes a base (10) from which a circuit breaker (20) is selectively dismounted and moved along a first portion of a dismounting path (42) into a disconnected position, a plate (40), fixed to the base (10), which is configured to guide the movement of the circuit breaker (20) along the dismounting path, and a toggle link (60), coupled to the plate (40) and biased to remain in a locking position, which is configured to block the circuit breaker (20) from moving along the dismounting path beyond the disconnected position while the toggle link (60) remains in the locking position, and to cause the circuit breaker (20) to freely move from the disconnected position and along a second further portion of the dismounting path (43) upon a temporary defeat of the bias thereof.