Dayton
Dayton 4YFJ2 unit bearing motor 1/185 hp 115 V AC 4 W
Compact shaded-pole motor delivers 4 watts at 1,550 rpm on 115 V AC for HVAC fan and blower duty
- ColorTransparent
- Runs on standard 115 V AC power
- Low 4 W output suits light-duty tasks
- Shaded-pole design gives simple, reliable operation
- Impedance thermal protection guards against overheating
- Totally enclosed air-over frame resists dust and moisture
Dayton 4YFJ2 unit bearing motor — purpose and fit
The Dayton 4YFJ2 is a single-phase shaded-pole unit bearing motor rated at 1/185 hp and 4 W output. It runs on 115 V AC at 60/50 Hz and draws 0.34 A at full load. The motor is built for HVAC controls applications where a compact, low-power drive is required.
Electrical and thermal limits
The motor carries a 1.0 service factor and impedance thermal protection with Class A insulation. Maximum ambient temperature is 40 degrees C. The enclosure is totally enclosed air-over and the shaft rotates clockwise from the lead end. Nameplate speed is 550 rpm.
Installation checks before ordering
Verify that the supply voltage matches 115 V AC and that the mounting arrangement suits a rear/foot cast-aluminium frame in a horizontal or vertical shaft-up position. Confirm the driven load does not exceed the 4 W output and that the operating environment stays within the 40 degrees C ambient limit. California Proposition 65 warnings apply.
Highlights
- Runs on standard 115 V AC power
- Low 4 W output suits light-duty tasks
- Shaded-pole design gives simple, reliable operation
- Impedance thermal protection guards against overheating
- Totally enclosed air-over frame resists dust and moisture
Specifications
| Brand | DAYTON |
|---|---|
| Color | Transparent |
Questions about this item
What does the 1/185 hp rating mean for this motor?
The 1/185 hp rating equals 4 W output power, suitable for light-duty HVAC air-over applications such as small fans or blowers.
What does 1,550 RPM deliver in an actual HVAC unit?
At 1,550 RPM the shaded-pole motor moves air quietly at low speed, typical for evaporator or condenser fan duty in refrigeration equipment.
How does the 115 V AC, 60/50 Hz supply affect installation?
The motor runs directly on standard 115 V AC at 60 Hz or 50 Hz, drawing 0.34 A full-load current with impedance thermal protection.
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