For a motorized MCCB used as an incomer:
a) The MCCB should be capable of rack-in/rack-out operation with the door closed.
b) The door should not be openable when the MCCB is in the ON position.
One vendor states that for a motorized MCCB, requirement (a) cannot be achieved, but requirement (b) can be achieved. Another vendor states that requirement (a) can be achieved, but requirement (b) cannot be achieved.
What are your thoughts on this?