Hello all,
I'm upgrading a building for a machine shop with three new 225 amp 208/120 volt three phase 42 space panels.
I have over 50 machines to wire up and I'm running out of breaker space in the panels.In one section I have 29
machines that pull 16 amps under full load.I plan on putting them on 20 amp three pole breakers(They are being fed with #12 wire currently with a 30 amp fused disconnect(Allready exisiting on the machines)
I want every machine to have it's own breaker
Since I can only get 14 breakers per panel I'm thinking about adding a secondary panel or extension panel that will feed off of the bus bars from the 225 amp panels to create more space(not a sub).The feeder panel will have a 225 amp mainbreaker in it.While the secondary will be just busbars.I plan on using 3/0 as the jumpers from the main panel to the secondary panel.
All of the machines are not going to be used at one time so there's really no chance of an overload.
I'm pretty sure this is legal.
Any and all advice is appreciated.
Thanks
