NAE PE145TC-1.5-4-RB-AI General Purpose Heavy Duty Cast Iron Electric Motor used for Pumps; Fans; Blowers; Compressors; Conveyors; Material handling equipment; Other industrial machinery; Damp, dusty or dirty environments; Suitable for use with variable frequency drives> 1-30 HP in stock; Service factor: 1.15 @ 60 Hz; 1.0 @ 50 Hz; NEMA Design B Performance/ High starting torque; F1/ F2 reversible; Lifting provision. Class F insulation system; Class B rise at full load; Class H vacuum pressure impregnation (VPI) resin for all windings; Corrosion-resistant epoxy paint and stainless steel nameplate and zinc plated hardware; IP55 protection; Condensation drain with plugs. Sealed bearings through 215T frame, regreasable open bearings on 254T frame and above; 3-year warranty (extended warranty available)