Dayton
Dayton 4YFJ8 Unit Bearing Motor 1/83 hp HVAC control
A 1/83 hp shaded-pole unit bearing motor delivering 9 W at 1,550 rpm for HVAC controls
- ColorTransparent
- Unit bearing design simplifies HVAC installation
- 1/83 hp output delivers 9 W for light-duty airflow
- Auto thermal protection guards against overheating
- 115 V AC single-phase suits standard building power
- Cast aluminium frame resists corrosion in damp environments
Unit Bearing Motor for HVAC Systems
The Dayton 4YFJ8 is a shaded-pole motor rated at 1/83 hp for single-phase 115 V AC supply. It runs at 1,550 RPM with a full-load current of 0.62 A and delivers 9 W output power. The cast-aluminium frame is totally enclosed air-over and mounts via rear foot in horizontal or vertical shaft-up orientation. Thermal protection is automatic and insulation is Class A for a maximum ambient temperature of 40 °C.
Mounting and Electrical Characteristics
The rear-foot mounting and dual-position shaft allow direct replacement in compatible HVAC units without bracket modification. Automatic thermal protection resets without user intervention after an over-temperature event. The motor operates on both 60 Hz and 50 Hz supplies at the same 115 V rating. CCW lead-end rotation is fixed, so the installer must verify the required direction before fitting.
Suitability and Limitations
This motor suits maintenance technicians replacing an exact 1/83 hp shaded-pole unit in residential or light-commercial air-handling equipment. Installers needing higher output, variable speed, or a different rotation direction should look elsewhere. Buyers in restricted states must confirm local compliance before purchase. The Prop 65 notice indicates the presence of listed chemicals.
Highlights
- Unit bearing design simplifies HVAC installation
- 1/83 hp output delivers 9 W for light-duty airflow
- Auto thermal protection guards against overheating
- 115 V AC single-phase suits standard building power
- Cast aluminium frame resists corrosion in damp environments
Specifications
| Brand | DAYTON |
|---|---|
| Color | Transparent |
Questions about this item
How long will the shaded-pole motor last before the bearings need attention?
The unit bearing design integrates the bearing into the motor housing and is lubricated for the life of the motor, so no separate bearing service is required.
What limits continuous operation at the 1/83 hp rating?
Thermal protection is automatic and the insulation is Class A, allowing a maximum ambient temperature of 40 degrees C before the motor shuts down to cool.
How much heat and noise does the motor produce when running all day?
At 9 watts output and 0.62 amps draw on 115V AC, the totally enclosed air-over enclosure keeps surface temperatures moderate and the shaded-pole design runs quietly at 1,550 RPM.
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