1 to 200 HP

All LEESON stock NEMA three-phase motors, 1 HP and larger, feature the IRIS insulation system. LEESON’s Inverter-Rated Insulation System (IRIS™), provides superior protection against voltage spikes induced by variable frequency drives.
This total insulation system protects better than spike-resistant magnet wire alone. Specially formed phase insulation, cushioned and sleeved connections (from the leads all the way into the turns), and deep-penetrating, nonhygroscopic, high temperature varnish are just a few features contributing to extra protection. All this plus second generation spike-resistant magnet wire. Suitable for use with an inverter at speed ranges of 10:1 for variable torque and 10:1 for constant torque. With blower kit, and proper inverter setup, suitable for use up to 20:1 variable torque and 20:1 constant torque. EPACT motors have efficiencies that meet or exceed EPACT standards.