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Dayton HVAC motor, cylindrical silver body with mounting lugs

Dayton

Dayton 45912G Definite Purpose HVAC Motor 0.41 hp

SKU CH-AGJA-Y5EW7

A definite-purpose HVAC motor rated at 0.41 hp, 850 RPM, 115 V AC single-phase with auto thermal protection and a totally enclosed air-over enclosure

  • Delivers reliable HVAC performance with 0.41 hp output
  • Runs on standard 115 V AC household power
  • Operates continuously at up to 40 °C ambient
  • Auto thermal protection prevents overheating damage
  • CW/CCW reversible rotation suits multiple installations

Dayton 45912G HVAC Motor Application

The Dayton 45912G is a definite-purpose HVAC motor rated at 0.41 hp for single-phase operation. It runs at 850 RPM nameplate speed and is designed as an OEM replacement in heating, ventilation and air-conditioning equipment. The totally enclosed air-over enclosure suits continuous-duty indoor airflow applications. Builders restoring or servicing compatible units will find it a direct-fit component.

Voltage and Frame Compatibility Check

Verify that the supply is 115 V AC at 60/50 Hz because the motor is not usable at 200 V or 208 V. Confirm the existing mounting uses a lug pattern and that the non-standard frame dimensions match the original housing. The auto thermal protection and Class A insulation require a maximum ambient temperature of 40 degrees C. Full-load current draws 5.19 A, so the circuit and wiring must support that load.

Integration Into HVAC Builds

The motor shaft rotates CW/CCW to match the original blower direction without rewiring. Its service factor of 1 means it delivers rated output continuously without overload margin. The lug mounting secures directly to the equipment frame, freeing installers from fabricating brackets. As a single-speed replacement, it restores factory airflow performance in compatible air-handling systems.

Highlights

  • Delivers reliable HVAC performance with 0.41 hp output
  • Runs on standard 115 V AC household power
  • Operates continuously at up to 40 °C ambient
  • Auto thermal protection prevents overheating damage
  • CW/CCW reversible rotation suits multiple installations

Specifications

BrandDAYTON

Questions about this item

What comes in the box with the Dayton 45912G motor and what must I supply separately?

The motor ships as a single unit with a lug mounting base. You will need to provide the mounting hardware, electrical wiring, a 115 V AC power source, and any driven component such as a fan blade or blower wheel.

Which horsepower version of this motor should I select for my HVAC unit?

This model is offered only in the 0.41 hp (1/24 hp) rating at 850 RPM. Choose it when the original equipment specifies that exact horsepower and speed combination.

What does the 850 RPM nameplate speed mean once the motor is installed in my system?

It indicates the shaft will turn at 850 revolutions per minute under full load on 115 V AC at 60 Hz. The motor draws 5.19 A at full load, is rated for continuous duty, and has automatic thermal protection with Class A insulation for up to 40 °C ambient.

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