Dayton 3M221 1/2 hp Condenser Fan Motor
A 1/2 hp condenser fan motor running at 1075 RPM on 208-230V AC with auto thermal protection
- Product typeHigh Temperature
- 1/2 hp motor delivers condenser cooling power
- 1,075 RPM single-speed design suits continuous duty
- 208–230 V AC input fits common HVAC supplies
- Auto thermal protection guards against overheating
- Reversible CW/CCW rotation simplifies installation
Motor Purpose
The Dayton 3M221 is a single-phase permanent split capacitor condenser fan motor rated at 1/2 hp for continuous duty. It suits HVAC technicians and maintenance teams replacing OEM condenser fan motors in residential or light-commercial air-conditioning and heat-pump units.
Electrical & Mechanical Traits
The motor runs on 208-230 V AC at 60 Hz, drawing 3.1 A full-load current with a 1.0 service factor. Auto thermal protection and Class B insulation support operation up to 60 °C ambient, while the reversible CW/CCW rotation and open air-over enclosure simplify direct substitution in existing cradle-base mounts.
Installation Checks
Confirm the 48YZ frame and 5 in shaft length match the original motor dimensions. Verify that the mounting orientation — horizontal or vertical shaft-up — fits the unit layout and that the supply voltage falls within the 208-230 V range before wiring.
How it compares
Measured against everything we stock in Indoor & Outdoor Ceiling Fans, at today’s prices. Recalculated every night.
- Price $210.99
- Pricier than about 77% of the 444 comparable items (median $99.99).
Specifications
| Product | |
|---|---|
| Brand name | Dayton |
| Product type | High Temperature |
Questions about this item
Will the motor's thermal protection require manual resetting after it trips?
The motor features automatic thermal protection that resets itself once the temperature drops, so no manual intervention is needed after an overload event.
Does the 1,075 RPM speed limit the airflow I can achieve on a hot day?
The motor runs at a fixed 1,075 RPM with a single speed, so the airflow volume is constant and cannot be increased to compensate for higher ambient temperatures.
How hot does the motor housing get when running continuously at 3.1 amps?
The motor is rated for continuous duty at up to 60 degrees C ambient, and its Class B insulation handles the internal heat rise during all-day operation at full load.
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