Marshalling Kiosk

A1) Size.

A2) No, because one would only really expect terminals and connections inside it.

The difference is semantics, but neither are "control panels" in that the concept is not to have "control" devices in them. The concept of "marshalling" areas (boxes, cubicles, cabinets, enclosures, compartments etc.) is to have a single place where field wiring comes into a system in one designated area and is then connected to control elements in ANOTHER area (i.e. your control panels) in a more neat and organized fashion.

So then you get down to the semantics differences of "kiosk", "box", "cabinet", "cubicle" , "compartment" etc. etc.

But if they are being used in the same project, I would conject that a "marshalling cubicle" is an area WITHIN another enclosure or other piece of equipment that is set aside for marshalling of field connections,

whereas a "marshalling box" is a stand alone box dedicated to the task.