Electronically commutated (EC) direct drive blower HVAC AC motors have a built-in microprocessor controller that allows users to control the motor speed. They are more energy efficient than general purpose AC motors and can replace direct-drive motors in fans and blowers. This listing is for each. Technical Specification Item ECM Direct Drive Blower Motor Motor Application HVAC/R Motor Sub Application Direct Drive Fan/Blower Phase Single Motor Design ECM HP 1/2 Nameplate RPM 1, 075 No. of Speeds 5 Voltage 208-230V AC Full Load Amps 4.0 Frame 48 Usable @ 208V Yes Usable @ 200V No Motor Thermal Protection None Hz 60 Hz Motor Service Factor 1 Ins. Class B Motor Shaft Rotation CW/CCW Max. Ambient Temp. 40 Degrees C Duty Cycle Continuous Lead Length 42 in Motor Enclosure Design Open Air-Over Motor Mounting Type Rigid Base Motor Mounting Position Horizontal Number of Shafts 1 Motor Frame Material Steel Shaft Dia. 1/2 in Shaft Length 4 15/16 in Motor Bearings Ball Motor Shaft Design Flat Overall Length 10 11/16 in Length Less Shaft 5 3/4 in Body Dia. 5 5/8 in Weight 13 lb Plug Type Wiring Harness Standards CSA Certified (MC236833), E27885, E306343), UL Recognized (E46035 Capacitor Required No Includes Wiring Harness