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Small cylindrical steel motor, open vents, stud mount

FASCO

FASCO D190 3.3 In 1/40 HP 230V CW Fan Accessory

SKU CH-0SGG-WB6YB

A 3.3 inch, 1/40 HP shaded-pole motor runs at 500 RPM on 230 V AC for fan and blower applications

  • typeClosed Base
  • 1/40 hp motor delivers 20 W output for compact HVAC applications
  • 230 V AC single-phase shaded-pole design runs at 500 RPM
  • Auto thermal protection and Class B insulation handle 40 °C ambient
  • CWSE rotation with stud mounting fits direct-drive fan assemblies
  • 3-inch frame, open air-over enclosure and steel construction for durability

HVAC Shaded-Pole Motor

The FASCO D190 is a single-phase shaded-pole motor rated at 1/40 hp for 230 V AC systems. It suits technicians replacing a direct-drive fan or blower motor in residential or light-commercial HVAC equipment where a compact 3.3 frame fits.

Voltage And Speed Constraints

The motor runs at a fixed 500 RPM on 60 Hz supply and draws 0.60 to 0.70 A at full load. It is not usable at 208 V or 200 V, so the installation must provide a stable 230 V source. Thermal protection is automatic and the insulation class is B with a 40 °C maximum ambient temperature.

Steel Frame With Stud Mounting

A steel frame and open air-over enclosure dissipate heat through the driven airflow. Stud mounting secures the motor to the blower housing, while the clockwise shaft rotation viewed from the shaft end must match the original fan wheel. The 20 W output and 1.0 service factor leave no margin for continuous overload.

Highlights

  • 1/40 hp motor delivers 20 W output for compact HVAC applications
  • 230 V AC single-phase shaded-pole design runs at 500 RPM
  • Auto thermal protection and Class B insulation handle 40 °C ambient
  • CWSE rotation with stud mounting fits direct-drive fan assemblies
  • 3-inch frame, open air-over enclosure and steel construction for durability

Specifications

BrandFASCO
typeClosed Base

Questions about this item

Which FASCO D190 motor capacity matches my replacement needs?

The D190 is offered as a single 1/40 hp shaded-pole motor rated at 20 W output, so there are no alternative capacities to select from.

What does the 1500 RPM nameplate speed mean once the motor is installed in my HVAC unit?

At 60 Hz the motor runs at a fixed 1500 RPM with one speed setting, delivering 1/40 hp directly to the blower wheel without gear reduction.

How does the 230 V AC single-phase supply limit real-world operation?

The motor is rated for 230 V AC only; it is not usable at 208 V or 200 V, and draws 0.60 to 0.70 A at full load on a 60 Hz circuit.

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