3-Phase IEEE 841 NEMA Premium® Energy-Efficient Motors• Frame material: cast-iron Enclosure: IP55 Service factor: 1.25 Insulation: Class F with B temp. rise for longer life 460V Bearings: regreaseable ball and roller Thermal protection: none Inverter rated NEMA MG 1 part 30: 1000:1 variable and 20:1 constant torque Max. ambient: 40°C Rotation: CW/CCW Warranty: 5 yr. Roller bearing models for belt drive applications onlyThese totally enclosed fan-cooled motors are for dusty, dirty, nonhazardous applications, and are especially suited for pulp, paper, and steel mills, petrochemical, and applications requiring severe-duty long-life motors. Internal and external corrosion-resistant finish with stainless steel nameplate. Feature Inpro-seal on drive end, and 50,000-hr. extended bearing life. Nonsparking fan.Meet or exceed IEEE 2001 specification and all NEMA Premium/CEE requirements for energy efficiency. UL Recognized, CSA and CE Certified.