#10 wire is rated for 30 amp service which is what the trailer will have coming to the fuse/circuit breaker box from the power inlet of the trailer. #6 wire is used for the 50 amp service of trailers with two aircondioners. The run from an inverter to the battery can range from 2-0 to 4-0 copper and can have a 400 amp or larger fuse.
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels