E.F.U.S. is a collection of twenty calculators and utilities designed for the electrical professional. Using an easy to navigate tabbed dialog interface E.F.U.S. provides a host of powerful and useful features, including: • A full suite of ohms law calculators for DC & single and multi phase AC • Conduit fill calculator • Box fill calculator • Grounding conductor calculator • Motor heater and motor conductor sizing • Multiple conductor ampacity calculator • Transformer amperage calculator • Motor amperage and horsepower calculator • Formatted printing for selected functions • Print screen function • Based on 1996 NEC data