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Small open-frame HVAC motor with ring-stud mounting and 12-inch leads

FASCO

FASCO D128 1/40-1/50-1/80 HP 115V CCW/LE fan accessory

SKU CH-Y17D-Z07X2

Direct-drive shaded-pole blower motor with three speeds, 115 V AC, 1/40–1/50–1/80 HP and 12-inch leads

  • typeClosed Base
  • Three-speed operation matches airflow to demand
  • 1/40-1/50-1/80 HP range fits small HVAC units
  • 115 V AC supply suits standard household circuits
  • Auto thermal protection shuts down motor on overheating
  • All-angle ring-stud mounting simplifies installation in tight spaces

HVAC motor with three-speed shaded-pole design

The FASCO D128 is a direct-drive blower motor built for HVAC applications. It operates on 115V AC single-phase power at 60 Hz. The shaded-pole design delivers three distinct horsepower ratings: 1/40, 1/50 and 1/80 HP. A 3.3 frame and ring/stud mounting allow all-angle installation.

Thermally protected open enclosure runs at 40 °C

Motor thermal protection is automatic and the insulation rating is Class B. The open air-over enclosure relies on airflow from the blower wheel for cooling. Full-load current draws 1.3 A at the highest speed, 0.90 A at the middle speed and 0.70 A at the lowest speed. Maximum ambient temperature is rated at 40 degrees C.

Sustained operation at nameplate 1500 RPM

Nameplate speed is 1500 RPM across the three selectable speeds. The motor is not usable at 200V or 208V. A service factor of 1.0 indicates continuous duty at rated load without overload capacity. Twelve-inch leads provide connection length for typical HVAC wiring.

Highlights

  • Three-speed operation matches airflow to demand
  • 1/40-1/50-1/80 HP range fits small HVAC units
  • 115 V AC supply suits standard household circuits
  • Auto thermal protection shuts down motor on overheating
  • All-angle ring-stud mounting simplifies installation in tight spaces

Specifications

BrandFASCO
typeClosed Base

Questions about this item

How is the FASCO D128 motor mounted and which step is often missed?

Mount using the ring/stud hardware in any orientation; the step often missed is confirming the 12 in leads reach the junction box before securing the motor.

What maintenance does the open air-over enclosure require?

Periodically clean dust from the open ventilation paths so airflow can cool the windings; the auto thermal protection will trip if the 40 Degrees C ambient limit is exceeded.

What is the first limit reached during continuous operation?

The auto thermal protection trips first when winding temperature rises past the Class B insulation limit, especially at the 1.3 A full-load current on the highest speed.

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