DC WIRE SIZING SPECIFICATIONS 

The distance between the battery bank and the Inverter/Charger should be as short as possible to achieve maximum efficiency and to reduce fire hazards. The cables should be as short as possible and the overall length of both cables added together should be less than 10 ft (3m) to comply with code requirements. Keeping your wire runs as short as possible helps to prevent low voltage shutdowns and nuisance tripping of the DC breaker because of increased current draw. The table below shows the recommended DC cable size, fuses/circuit breakers, and DC grounding cable sizes for the IC Series (Note: these values are
correct for cables in free air, not conduit).