FEATURES: • Class F Insulation, Class B Rise At Full Load On 60 Hertz Sine Wave Power • Corrosion Resistant Mill & Chemical Duty Paint • Cast Iron Frame, Cast Iron End Brackets • Stainless Steel Nameplate & Zinc Plated Hardware • Shaft Slinger On Pulley End For IP54 Protection • Dual Voltage 230/460 Volts (1-100 HP) • 40°C Ambient, NEMA®† Design B Performance On 60 Hz Sine Wave Power • Self-Certified Class I, Division 2, Groups A, B, C, & D Double Shielded Bearings 140-360, Open on 400-440 • Steel Fan Cover & Conduit Box • 1 .15 Service Factor @ 60 Hz • Field Convertible To F2 Mounting • Condensation Drains With Plastic Plugs • Conversion Kits: All Cast Iron Upgrade, C&D Flanges, Canopy Kits • Bearing Caps On 400-440 • Suitable for 20:1 (3-60hz) Variable Torque On Inverter Power • 208v will not be marked on DOE regulated spread-voltage motors