vashonz Posted May 25, 2010 Share Posted May 25, 2010 I have a detached 30x40 shop, and want to run 220vac out there. This is what I have right now: 200A main panel in house Shop has its own 60A (double pole) breaker that runs to a feeder panel in the shop. There is a spare 50A (double pole) breaker that ends in a 220vac outlet in the garage attached to the house. What I want to do is replace the 50A breaker with a higher rated breaker (60A? 100A?), run new cable (4ga? 6ga? its only about 40ft to the shop) add another feeder panel in the shop, and install 2 220vac outlets. One for a welder/table saw (50A) and one for an air compressor (30A) My questions are: What size breaker should I run to the new feeder panel? Can I get away with the 60A breaker feeding 50A and 30A cicuits? I understand that I would not be able to run both welder and compressor at the same time at max amp. Do I need to have a breaker at both ends of the new cable, I.E. 60A breaker in main panel, and another 60A breaker in the feeder panel, both isolating just the new cable. main panel in house. current feeder panel in shop Quote Link to comment Share on other sites More sharing options...
zxtoy Posted May 25, 2010 Share Posted May 25, 2010 You must live in an area with a very lax building code. Quote Link to comment Share on other sites More sharing options...
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