I'm trying to put together a wiring design for the new shop. I already have a separate circuit dedicated to lighting. I'm trying to decide what to do about the circuits to run the tools. I figure on running two 120V/20A circuits for the smaller stuff. Additionally, I figure on running two
240V/30A circuits. I plan to put the dust collector on one, and the other tools on the other. The dust collector is packed away in a box at the moment, so I can't take the specs off the motor (and I can't find them online), but I'm quite sure a 30A circuit will handle it. I was able to take the motor specs off the other devices: table saw (230V/8.6A), jointer (230V/7.1A), and band saw (230V/6A). I don't plan to run more than one of these other units at the same time. Frankly, I could probably do 20A on the 240V circuits, but I just think 30A would give me more flexibility in the future if I ever needed to plug in something that needed extra current. The longest run would be no more than 45 feet. I'm open to comments on the above.As for the wiring itself, I think I'm looking at running 3 - #12 wires for the 120V circuits (2 hots and a shared neutral) and 4 - #10 wires for the
240V circuits (4 hots). No ground as we are required to use metal conduit around these here parts. Based on the conduit fill chart, I'm looking at roughly 25% fill with 3/4" EMT. Any reason to bump that to 1"?Any comments on this plan?
todd