I have the same 40' run- 80' round trip.

My Simpson Lawrence windlass can easily pull 100-150A. My Hunter
sailboat was factory wired with 2/0 gauge cable. The diameter of the
wire inside the insulation is about the size of a dime.

It's big, but the benefit is minimal voltage drop in the wire and thus
more power to the windlass motor.

Rich



On Sat, 17 Nov 2007 11:11:26 -0800, Gordon wrote:

Looking at a 1200 watt Lofrans. 80 to 110 amps. 40' from batts to
windlass.
What size wire?
Thanks
Gordon