125 amps isn't much of a big deal. My microwave oven draws 100+.
Windlass draws over 80 with peaks beyond that.

Doug
s/v Callista

"Gualtier Malde" wrote in message
news:frEbc.65804$w54.401828@attbi_s01...
Dick Locke wrote:
I am thinking about installing dual electric primary winches, which
are 1500 watt 12 v motors (still waiting on the electric specs to see
breaker size which will define wiring size. I believe that's startup
wattage.)

1500 Watts? Are you sure? The formula P=IE, or I=P/E =
I=1500/12=125Amps.
Thats a whole lot of juice. Do you have water cooled jacketed batteries?