Wire gauge for a 200 ft run on 30 amps or 50 amps?

[map40]

Anybody has a good calculator for wire gauge? I need to do a wire run of 200ft buried wire. I can do 50amps or 30amps. Any advise will be greatly appreciated!

[gbopp]

It's always nice to get good advice, as long as the person giving the advice is qualified to advise you on how to do it properly. 🙂
I agree, use heavy wire and do it right the first time.

[Lynnmor]

2oldman wrote:
advice.

Thank you for that, I cringe whenever I see this and it reminds me of the state of education in America.

[enblethen]

3% for voltage drop.
Hopefully, Old Biscuit is indicating copper wire and not aluminum.
Direct burial or are you going to put in conduit?

[naturist]

I'll second what @Old-Biscuit said. Don't scrimp on wire. As wire is expensive in those sizes, it is none the less the cheapest part of the whole deal, when you consider also the just the hassle of blown fuses/breakers, brown-out damaged gear, etc.

[Boon_Docker]

The grammar gods have struck again. :B

[2oldman]

advice.

[map40]

Old-Biscuit wrote:
3% Max Voltage drop for that 200' run

Otherwise you will have Low Voltage any time the supply voltage drops below 115V


50A #1AWG
30A #3AWG

Do NOT scrimp on the wire size...........

Thanks and thanks for the advise!

[Cummins12V98]

Don't throw away your money!!! Run the 50A and be done with it.

[Old-Biscuit]

3% Max Voltage drop for that 200' run

Otherwise you will have Low Voltage any time the supply voltage drops below 115V


50A #1AWG
30A #3AWG

Do NOT scrimp on the wire size...........

[map40]

Thanks! What would be an acceptable voltage drop? 5%?

[SAR_Tracker]

wire size calculator (dot) net