Metric Motor 3-Phase IP55 Enclosure 1/3 HP 0.25 kW Nameplate RPM 3430 Frame D63 Voltage 230/460 60/50 Hz 3 Phase Full Load Amps 1.1/0.55 Rigid Base Mounting Thermal Protection None Insulation Class F Service Factor 1.15 Ball Bearings Frame Material Aluminum Ambient Temperature 40 Degrees C CW/CCW Rotation Nominal Efficiency 72.0 Percent Continuous Duty 3001-3600 UL Recognized CSA Certified CE Certified