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View Full Version : Wire size for a 400 amp service

strangeelectric
Mar 17, 2008, 10:26 AM
Anyone know the minimum wire size and conduit I can use for a 400 amp service for my apt building?:confused:
stanfortyman
Mar 17, 2008, 10:40 AM
#2AL or #4CU
stanfortyman
Mar 17, 2008, 10:45 AM
Are you the electrician or the owner?