The 40 total amps of 120v from the sub panel has so far been enough power as we dont normally use more than 2 or 3 tools at once. We dont run all eight 120v outlets from the sub panel at the same time. The shop lights run off the main panel's 120v outlets that were already in the garage. There is a 240v 50 amp breaker feeding a NEMA 6-50R for welders, a 240v 30 amp breaker to a 6-30R for other welders, two 240v 20 amp breakers to two 6-20R's for the compressor and plasma cutter, and two 120v 20 amp breakers feeding two 4-gang boxes of two each 5-20R GFCI's for saws, grinders, drill press, other power tools, etc. The j-boxes come off 3 sides of the panel. In the sub panel, all breakers feed receptacles that are right off the panel, in conduit. The wiring between the panels is either 2 ga or 4 ga, I forget which. The breakers in the main panel had to be re-arraranged to allow for a 100 amp breaker to feed the sub panel. We put in a 100 amp sub panel right next to the main panel. The house has 100 amps to the main panel. Actually, I hired an electrician to do it. I talked to a family friend that does electrical tonight and he said he didn’t think I'd have an issue, just to watch trying to weld with the dryer on, and the range cooking something. Thank you all so much for your input, I really do appreciate it. I just want room to spare if I need it.Īre GFCI breakers and a welder (the GFCI for 120 volt receptacles) play nice together? I have 100 amp service, and I’m adding 100 amp sub panel in the garage, is that safe? I figure I'm only going to run up to 80 amps with the setup I’ll do now.
What do you all think? I mean, you do know more about this than I do, I have the ability just not the knowledge at stuff like this.Īre the tandem breakers safe, if not I won't touch them. I would run a 20 amp for misc tools (im only going to have maybe 6 receptacles on one side of the wall.Īnd then I'll have 20 amps to play with if the need ever arises. I would run another 30 amp for the air compressor. I would wire a 30 amp for my (borrowed - nice friend willing to let me use his machine to learn) millermatic 210. Then I would run I believe it is #4 cable 4 feet into my garage and wire a sub panel in there. Then I would run a 100 amp main breaker into the slots that are now available. Then continue the dryer wiring on to the dryer as normal (I hope these breakers are safe.any thoughts?). Take my 30 amp dryer breaker, and put in a 'tandem' (the space saving breakers, two switches takes up only one slot in the box). I have only one available place for a breaker in the panel. Right outside my garage is my main panel. The deal is I'm going to run a welder in my garage.
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