Technical Parameters (Specifications) Parameter Value Unit / Details Manufacturer Emerson Catalog Number CMF025M315H2BZMZZZ HP (Horsepower) 1/4 (0.25) HP RPM (Speed) 3150 Revolutions per Minute (nominal high speed) Voltage 115 Volts Hz 50/60 Hertz (Dual frequency capable) Phase 1 ~ Single Phase (ECM/Brushless DC) Full Load Amps (FLA) 1.5 - 2.0 (typical) Amps (varies by speed tap selection) Frame Size 42 NEMA Frame Service Factor (SF) 1.0 Capacitor Not Required ECM motors do not use capacitors Shaft Diameter 1/4" Inch Shaft Extension 1 1/2" (typical) Inch (verify exact length on nameplate) Shaft Details Flat on shaft For secure fan blade set screw mounting Bearings Ball Bearings Sealed, low-temperature lubricated Rotation Reversible Field reversible (clockwise or counterclockwise) Enclosure Type OAO Open Air-Over Mounting Extended Through-Bolt Standard commercial refrigeration mounting Control Type ECM Constant Torque Multi-tap programmable speed control Number of Speed Taps 3-5 (typical) Field selectable via wire connections Thermal Protection Impedance Protected / Solid State Integral electronic protection Ambient Temperature -30°F to +120°F -34°C to +49°C (low-temperature rated) Insulation Class Class B or Class F Duty Cycle Continuous Rated for continuous operation Efficiency >70% Significantly higher than PSC motors Approximate Weight 5-7 lbs (2.5-3 kg) typical