This gets a little tricky. 370-23(c) says two conduits screwed into threaded hubs are permitted to support enclosures 100 cubic inches or less without devices or fixtures in the enclosure. The exception tells us that conduit of the same trade size as the conduit body can support the conduit body even if the volume exceeds 100 cu. in.
It is now my opinion that is the volume of the 2" T is less than 100 cu. in. then the 3/4 conduits are permitted to support it.
Don(resqcapt19)
