.3318OS1PRBOC56 WEG 1/3HP Air Handling Electric Motor, 1800RPMElectric Motors Frame C56 Output 0. 33 HP (0. 25 kW) Number of Poles 4 Frequency 60 Hz Rated speed 1740 rpm Slip 3. 33 % Rated voltage 277 V Rated current 2. 58 A L. R. Amperes 13. 4 A LRC 5. 2x(Code N) No load current 2. 10 A Rated torque 0. 996 ft. lb Locked rotor torque 360 % Breakdown torque 300 % Locked rotor time 10s (cold) 6s (hot) Moment of inertia (J) 0. 0403 sq. ft. lb Insulation Class B Service factor 1. 35 Temperature rise 80 K Duty Cycle