ESP-OL50EM1B1 Motor Type: Shaded Pole Enclosure: Open H.P. (Max.): 50 Watt Voltage: 230 Hz: 60 Speeds: 1 Rotation: CW RPM Range: 1550 NEMA Frame Size: 51 Phase: Single Standards: UL/CSA FLA: 1.7 Mount: Unit Bearing Bearing: Cast Iron Unit Bearing Shaft Length Inches: 3 Shaft Dia Inches: 5/16 Thermal Protection: Yes Ambient Deg C: 40 Ins. Class: Class B Capacitor Included: No