This site will help you on determining wire size.
DC Cable Sizing Tool - Wire Size Calculator - MM2 & AWG - solar-wind.co.uk
Remember to double the distance from the battery to the frig to take account of the return earth path. Always oversize 12v DC wiring rather than saving a few dollars by going a wire size down.
On the fuse size, I'd suggest 50% above the maximum stated current draw.


I am going to hot wire my waeco fridge direct to the batterys,on my truck,what size wiring would I need to use........also what size fuse..I,ll be useing a in line fuse holder
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