So I find myself making a 100a/208v power supply that while not in use will function for a dual 45A/125v power supply. IN installing the panel mount outlets for this I was also searching for covers for the receptacles. Believe in the NEC I remember some requirement for coving all holes over 1/4" in dia. and both are. These as opposed to Soco and CamLoc type snap covers don't seem to have any covers and I had to modify some GFCI covers to do the trick. Curious in realizing most don't deal with stage pin in this size, thoughts on why there wouldn't be protective covers for such things.