Quite interesting. I believe has been the individual components that have been listed in the units I've wired, not the whole package. But consider. When I build a new packaging line at the local potato processing plant I use listed components and I build what is essentially a new machine. The whole machine isn't listed, just the components. I think there is a difference somewhere, I'm just not sure where.
Our AHJ absolutely does require UL or CSA listings for all electrical equipment. I have had to remove restaurant equipment from a job site at final inspection due to non-listing. Anyone else?