Reply by rockindavan

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Posted on Prepping to rewire shed

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299 posts in 2968 days

#1 posted 07-27-2016 09:41 PM

240 is nice to have since most 120 tools are 1.75 hp or less. Might not need extra hp but it is nice to have. I got an old 2hp 240 only air compressor for super cheap since most people don’t have 240 in their garage and the guy couldn’t use it. It opens up possibilities. The other think to think about since you have a relatively small feeder is balancing your panel. If you put all your main 120v circuits on one branch, you are limited to 40 amps total. Splitting it between the legs opens up 80 a of 120. 240 simplifies this by splitting the load between both legs. Switching dual voltage tools to 240 is beneficial here, but generally it’s not worth your time until you over 1 hp. I had a small shop similiar in size that I redid the wiring with a 40a panel. At one time the 5000w heater was running, 2 hp jointer, dc, lights, 2 hp air compressor and small hot tub. That was pretty unlikely to happen, but it did so whatever could be the max, it might happen. Worse case scenario it trips the panel, but think about loads on each leg.

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