Holy crap....I refuse to believe that. That's just straight up impossible.
How the hell do you fuse something like that? Consider this, in your house, you typically run every electrical outlet in an entire room of ONE 15A breaker. I can't even fathom what 480A of draw is like. You must run like dual 0Gauge power wires to something like that.
*runs to go read up on winches*
you have to consider, thats differing between dc voltage, and ac voltage. huge difference.