General Electric EPAct Value Line Open Dripproof Totally Enclosed Fan Cooled Totally Enclosed Fan Cooled-Severe Duty Totally Enclosed Fan Cooled-Explosion Proof E$P Open Dripproof NEMA Premium E$P Open Dripproof X$D ULTRA® – Totally Enclosed Fan Cooled X$D ULTRA® 841 X$D ULTRA® 661 Heat Exchanger Adjustable Speed Drive Adjustable Speed Motor – A$D Medium Voltage Medium Voltage Vertical Vertical