The motors would all be on separate circuits. Someone told me that separately disconnected circuits cannot run through one junction box according to NFPA 79.
Our company manufactures industial machinery with 1-4 ac motors ranging from .5 hp to 25 hp. These machines are not currently factory wired. Several customers are requesting that the motor wiring (from all 4 motors) be brought to a terminal block in a central junction box to make it easier for...