Is a pressure switch or a relay a load?

A pressure switch is typically considered a control device rather than a load, as it is used to open or close a circuit based on pressure levels. A relay, on the other hand, can also be classified as a control device that uses a small current to control a larger current, but it operates a load by switching it on or off. Thus, while neither is a load in the traditional sense, a relay is more directly associated with controlling loads in electrical circuits.