I am in the process of laying out a small control panel for a single heated vessel 120VAC 20A electric brewery. I brew primarily 3.5-gallon batches, which start off as 4.5 to 5 gallons of wort, so a limit of 2400W is not a problem. I am able to boil this amount of wort on an portable 1800W induction range, which is not as efficient as an immersed element. I have also installed a 10-gallon 120VAC 20A BoilCoil installed in my PolarWare 361BP 10-gallon Brew Pot (the made in the U.S.A. Polar Ware kettle with factory welded ball valve and thermometer fittings), but I brew 5.5-gallons batches so infrequently that I having to wait a little longer until the wort comes up to a boil is not a problem.
With that said, I have managed to assemble a fairly decent collection of different vintage Greenlee 730BB round punches over the years (1/2", 5/8", 13/16", 7/8", 1", 1-1/16", 1-3/16", 1-3/8", 1-1/2", and 2"). They have been used primarily for the task for which they were originally designed; namely, punching holes in metal chassis for tube sockets and other tube-type-era electronic components (a technology that is is still used in guitar amplifier and radio transmitter linear amplifier design). Most of the work that I have performed in the past has involved punching holes in unfinished/anodized aluminum or cadmium plated steel chassis. I have avoided punching painted chassis because they tend to chip. Has anyone punched powder coated steel? If so, did the punch chip the finish on the die side of the hole? I need to decide if I want to use a punch or a bi-metal hole saw for the larger holes. I will need to use the 2" punch for the flanged NEMA power connectors. That punch is a monster. It requires one to drill or punch a 3/4" hole for the draw stud.