Sparky, we are missing some key information if you are in need of some answers. Is it a continuous load? Is it a wet, damp or dry location? How many conductors are in the raceway? We will assume 75° terminations. Basically, if the load is continuous you'd take the load times 125% and pick your conductor gauge out of the 75° column. If you are using conductors that have a 90° insulation you'd start your derating from the 90° column. As long as your derating didn't take you below the actual load at 100% you'd be within code. You'd pick your overcurrent protection at 125% for continuous load and round up if you need to do so. Now if we are talking motors that's handled a little differently. Motors are not considered continuous loads.
