Overview
The Dayton 4M211D is a compact, single-phase C-frame shaded pole motor designed for direct-drive fan and blower applications in HVAC and refrigeration systems. Rated 1/150 HP at 2850 RPM, this 120V motor features a non-standard frame size and sleeve bearings for dependable, long-life operation in ventilation equipment. With full impedance protection and Class B insulation, the motor is suitable for continuous-duty applications in commercial and residential settings.
Key Features
- Shaded pole design for reliable single-phase operation without capacitor
- Mechanically reversible rotor for flexible airflow direction
- Impedance-protected motor with Class B insulation rating
- Sleeve bearing construction for economical, quiet operation
- Compact C-frame form factor fits standard mounting arrangements
- Two #8-32 stud mount on 1-7/8″ centers for secure installation
Technical Specifications
- Horsepower: 1/150 HP
- Input Voltage: 120V
- Full Load Amps: 0.61 A
- Phase: Single Phase (1 PH)
- Frequency: 60 Hz
- Nameplate RPM: 2850
- Frame: Non-Standard C-Frame
- Motor Design: Shaded Pole
- Enclosure: Open Air-Over
- Insulation Class: B
- Service Factor: 1.00
- Bearings: Sleeve
- Shaft Diameter: 3/16″
- Length Less Shaft: 1-9/16″
- Rotation: Clockwise (Standard Exit)
- Ambient Operating Temperature: 40°C Max
- Thermal Protection: Impedance
- Mounting Type: Stud Mount (Two #8-32)
Typical Applications
The Dayton 4M211D is engineered for small direct-drive ventilation equipment including:
- Bathroom exhaust fans and ventilators
- Range hood and kitchen exhaust systems
- Electric heaters and space heaters
- Hair dryers and appliance motors
- Air cleaners and air purifiers
- Humidifiers and dehumidifiers
- Refrigeration and freezer fan motors
- Window air conditioner units
Compatibility & Replacements
Compatible With
- 120V single-phase 60 Hz circuits
- Direct-drive fan and blower housings with C-frame motor mounts
- Standard 2-prong electrical plug outlets
- HVAC and refrigeration equipment using 1/150 HP motors
- Ventilation systems requiring 2850 RPM direct-drive operation
Replaces / Drop-In Replacement For
The Dayton 4M211D replaces previous-generation Dayton C-frame shaded pole models in the 1/150 HP range with equivalent 120V ratings and 2850 RPM performance. Verify mounting studs, shaft diameter, and nameplate specifications with your OEM documentation before ordering.
Works With
- Dayton fan blower housings (9-12″ diameter)
- Standard C-frame motor mounting brackets
- Sleeve bearing blower assemblies
- Direct-drive centrifugal and axial fan wheels
- Commercial and residential ventilation ducting systems
