Conduit/conductor requirements for 400a meter socket

[Gorak]

I'm new to this stuff and in my research I'm finding conflicting information. What is the minimum NEC requirement for an underground feed to a 400a meter socket? I have a 4/0Al 3 wire single phase in a 2.5" conduit right now (No meter at the moment). Is that going to do it or will I need to upgrade? Plans are to have 2 200a disconnects from the meter with one going to a shop and one to a house. Neither are built yet. I don't know my load requirements yet but want to have it future proof, hence the 400a meter.

 

[iwire]

I'm new to this stuff and in my research I'm finding conflicting information. What is the minimum NEC requirement for an underground feed to a 400a meter socket? I have a 4/0Al 3 wire single phase in a 2.5" conduit right now (No meter at the moment). Is that going to do it or will I need to upgrade? Plans are to have 2 200a disconnects from the meter with one going to a shop and one to a house. Neither are built yet. I don't know my load requirements yet but want to have it future proof, hence the 400a meter.

It depends on the specifics, I recommend you hire an electrical contractor.

I am closing this thread, in accordance with the Forum Rules.

This site is designed for:

• Contractors
• Electricians
• Engineers
• Inspectors
• Instructors
• Other electrically related individuals

* This NEC� Forum is for those in the electrical and related industries. Questions of a "How-To" nature by persons not involved in the electrical industry will be removed without notice.