The DuroMax XP5050GC is our robust 50-amp 50 ft 6-gauge heavy duty 14-50 generator power cord for home backup. This generator power cord features a 100% copper wire for better power quality, an STW jacket rating for durability, grounded plugs for safe operation, reinforced blades minimize bending of prongs, and standard CS6364 to hook directly to most 50 amp transfer switch types.