Bearings: Regreasable Ball , Duty: Continuous , Efficiency Group: NEMA Premium , Enclosure: Totally Enclosed Fan-Cooled , Frame Material: Cast Iron , Hz: 60 , Insulation Class: F , Inverter Rated: 1000:1 Variable, 20:1 Constant Torque , Max. Ambient Temp.: 40 Degrees C , Motor Application: Pumps , Motor Design: 3-Phase , Motor Enclosure Design: Totally Enclosed Fan-Cooled , Motor Shaft Design: JP Threaded , Motor Sub Application: Waste Water , Motor Thermal Protection: None , Motor Type: 3-Phase , Mounting: Face/Base , Phase: 3 , Rotation: CW/CCW , Service Factor: 1.25 , Shaft Type: JP Threaded , Thermal Protection: None