Quote Originally Posted by Tom M King View Post
This thread saved me a bunch of money. I had forgotten that the largest bus bar breaker you could get was 125. I was going to run 200 down there, just in case I needed that much later. Doing some refiguring, 125 is plenty, so I'm saving almost 7,000 dollars by only needing 500-500-500-350 MCM instead of 750 MCM. The cost is almost double for 500 feet. It needs to be that large because there will be a 65 amp subpanel another 300 feet away.

I wasn't going to be able to pick up that spool of 750 with my tractor, but can easily handle the spool of 500, so it saves more than money.
65A subpanel? 65A is not a standard size fuse or circuit breaker, it jumps from 60A to 70A.