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Can I install a 50amp sub panel to a detached garage if I only have 3 wires running? Just bought the house and wire is already there.

  • Hello, and welcome to Home Improvement. What kind/gauge wire are we talking here? – Daniel Griscom Apr 11 at 23:20
  • What loads do you want to run off this subpanel? – ThreePhaseEel Apr 11 at 23:21
  • What are the colors of the 3 wires? What do you want to run? – Harper Apr 12 at 1:24
  • It is 2 Black 2 gauge and 1 yellow 4 gauge. It’s a pretty long run I’d say over 200 ft. Looking to run a couple 20 amp breakers and one 220. – Terry S Apr 13 at 13:49

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