Technical Parameters (Specifications) Parameter Value Unit / Details Manufacturer Emerson (formerly US Motors) Catalog Number 5700R15ADFAZZZ HP (Horsepower) 1/4 (0.25) HP RPM (Speed) 1625 Revolutions per Minute (nominal full load speed) Voltage 115 Volts Hz 60 Hertz Phase 1 ~ Single Phase Full Load Amps (FLA) 3.8 (typical) Amps (verify on nameplate) Frame Size 48 NEMA Frame Service Factor (SF) 1.0 Capacitor Required - Run Capacitor Permanent Split Capacitor (PSC) design Capacitor Value 5 MFD (typical) Microfarads (µF) - 370V rating Shaft Diameter 1/2" Inch Shaft Extension 4" (typical) Inch (verify exact length on nameplate) Shaft Details Flat on shaft For secure fan/blower wheel set screw mounting Bearings Sleeve Bearings Quiet operation, oil lubricated Rotation Reversible Field reversible (clockwise or counterclockwise) Enclosure Type OAO Open Air-Over (airflow cooled) Mounting Rigid Base Heavy-duty steel base with slotted holes Speed Taps Multi-speed Typically 3 speeds (High, Medium, Low) via color-coded leads Lead Colors Purple, Yellow, Black, etc. Varies by speed tap configuration Insulation Class Class B (typical) Duty Cycle Continuous Rated for continuous operation Thermal Protection Automatic Reset Protects against overheating Motor Type PSC (Permanent Split Capacitor) Single-phase, capacitor-run design Approximate Weight 12-15 lbs (5.5-7 kg) typical