General Purpose Motor Three Phase Motor Design 3-Phase 20 HP Nameplate RPM 1 768 No of Speeds 1 Voltage 208-230/460V AC Full Load Amps 53.0-48.5/24.2 A 256T Frame Usable @ 208V Yes Usable @ 200V No Hz 60 Hz Motor Service Factor 1.15 Max Ambient Temp 104 Degrees F Motor Thermal Protection None Duty Cycle Continuous Ins. Class F NEMA Design B Motor Enclosure Design Totally Enclosed Fan-Cooled Motor Shaft Rotation CW/CCW Motor Mounting Type Rigid Base