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Mike
Mike, Master Electrician
Category: Electrical
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Experience:  Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer
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I have an empty but hot 200 amp box in one structure. I

Customer Question

I have an empty but hot 200 amp box in one structure. I would like to run a 125 amp sub box underground into another structure 500 feet away. I will need both 120/240 volts in the second structure. What size wire would I run to connect the 2 boxes
Submitted: 1 year ago.
Category: Electrical
Expert:  ProGrade replied 1 year ago.

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4/0 Aluminum ( 4/0 Quadraplex )

Let me know if you need any additional info. If not, please rate my service. Thank you much, Ken

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