ABB’s SP4 technology meets the NEMA Super Premium efficiency level in a standard ac induction motor design operating across the line, independently of a variable speed drive. SP4 is designed for a more sustainable and efficient future driven by the need to reduce energy consumption. SP4 motors meet current U.S. Department of Energy efficiency standards, as well as anticipated Medium Electric Motor (MEM) regulations, which take effect on June 1, 2027, in the United States. These regulations mandate that motors up to 100 hp must maintain NEMA Premium efficiency, while motors between 100 and 250 hp must achieve NEMA Super Premium efficiency.