Marathon K277 Blower Motor
The Marathon K277 Blower Motor is a high-performance, three-phase HVAC motor engineered for commercial fan and blower applications. Delivering 3/4 HP at a rated 1725 RPM, this 56-frame unit is the direct replacement for E119361.00 and Marathon model 5K46KN4085. Built with a rolled steel frame and a resilient base, it minimizes vibration transfer in belt-drive or direct-drive air handlers. The open drip-proof (ODP) enclosure allows for efficient cooling during continuous duty cycles, while the ball bearing construction ensures longevity under radial loads. This motor is versatile for multi-voltage setups, operating on 208-230/460Vac with a service factor of 1.25. Technicians will find the 5/8-inch keyed shaft and 10.88-inch overall length compatible with standard NEMA 56 mounting requirements. Whether you are servicing industrial exhaust fans or central air handling units, the K277 provides the reliable torque and thermal stability required for demanding commercial ventilation systems.
Key Benefits- Direct Interchangeability: Seamlessly replaces legacy E119361.00 and 5K46KN4085 models without field modifications.
- Three-Phase Efficiency: Optimized for 208-230/460V power supplies, providing balanced loads and higher starting torque for heavy blowers.
- Vibration Dampening: The resilient base mount isolates mechanical noise, essential for indoor air handling applications.
- Durable Construction: Features ball bearings and a NEMA 56 frame for superior shaft alignment and wear resistance.
- Flexible Rotation: Supports CCW/CW rotation to match specific fan blade pitches and blower wheel orientations.
Is the Marathon K277 suitable for outdoor condensing fans?
As an Open Drip Proof (ODP) motor, it is designed for indoor use or protected environments. For direct exposure to rain or heavy debris, a TEFC motor is typically preferred.
What are the wiring requirements for the dual voltage rating?
This 3/4 HP blower motor features a standard lead configuration for 208-230V or 460V wiring. Always refer to the nameplate diagram to ensure the 3.3-3.0/1.5 Amps draw matches your circuit protection.
Does this motor include internal thermal overload protection?
Specifications for the K277 indicate no internal automatic reset protection; therefore, it should be paired with a properly sized motor starter or external overloads to prevent winding damage.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Marathon K277 Blower Motor
The Marathon K277 Blower Motor is a high-performance, three-phase HVAC motor engineered for commercial fan and blower applications. Delivering 3/4 HP at a rated 1725 RPM, this 56-frame unit is the direct replacement for E119361.00 and Marathon model 5K46KN4085. Built with a rolled steel frame and a resilient base, it minimizes vibration transfer in belt-drive or direct-drive air handlers. The open drip-proof (ODP) enclosure allows for efficient cooling during continuous duty cycles, while the ball bearing construction ensures longevity under radial loads. This motor is versatile for multi-voltage setups, operating on 208-230/460Vac with a service factor of 1.25. Technicians will find the 5/8-inch keyed shaft and 10.88-inch overall length compatible with standard NEMA 56 mounting requirements. Whether you are servicing industrial exhaust fans or central air handling units, the K277 provides the reliable torque and thermal stability required for demanding commercial ventilation systems.
Key Benefits- Direct Interchangeability: Seamlessly replaces legacy E119361.00 and 5K46KN4085 models without field modifications.
- Three-Phase Efficiency: Optimized for 208-230/460V power supplies, providing balanced loads and higher starting torque for heavy blowers.
- Vibration Dampening: The resilient base mount isolates mechanical noise, essential for indoor air handling applications.
- Durable Construction: Features ball bearings and a NEMA 56 frame for superior shaft alignment and wear resistance.
- Flexible Rotation: Supports CCW/CW rotation to match specific fan blade pitches and blower wheel orientations.
Is the Marathon K277 suitable for outdoor condensing fans?
As an Open Drip Proof (ODP) motor, it is designed for indoor use or protected environments. For direct exposure to rain or heavy debris, a TEFC motor is typically preferred.
What are the wiring requirements for the dual voltage rating?
This 3/4 HP blower motor features a standard lead configuration for 208-230V or 460V wiring. Always refer to the nameplate diagram to ensure the 3.3-3.0/1.5 Amps draw matches your circuit protection.
Does this motor include internal thermal overload protection?
Specifications for the K277 indicate no internal automatic reset protection; therefore, it should be paired with a properly sized motor starter or external overloads to prevent winding damage.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Marathon K277 Blower Motor is a high-performance, three-phase HVAC motor engineered for commercial fan and blower applications. Delivering 3/4 HP at a rated 1725 RPM, this 56-frame unit is the direct replacement for E119361.00 and Marathon model 5K46KN4085. Built with a rolled steel frame and a resilient base, it minimizes vibration transfer in belt-drive or direct-drive air handlers. The open drip-proof (ODP) enclosure allows for efficient cooling during continuous duty cycles, while the ball bearing construction ensures longevity under radial loads. This motor is versatile for multi-voltage setups, operating on 208-230/460Vac with a service factor of 1.25. Technicians will find the 5/8-inch keyed shaft and 10.88-inch overall length compatible with standard NEMA 56 mounting requirements. Whether you are servicing industrial exhaust fans or central air handling units, the K277 provides the reliable torque and thermal stability required for demanding commercial ventilation systems.
Key Benefits- Direct Interchangeability: Seamlessly replaces legacy E119361.00 and 5K46KN4085 models without field modifications.
- Three-Phase Efficiency: Optimized for 208-230/460V power supplies, providing balanced loads and higher starting torque for heavy blowers.
- Vibration Dampening: The resilient base mount isolates mechanical noise, essential for indoor air handling applications.
- Durable Construction: Features ball bearings and a NEMA 56 frame for superior shaft alignment and wear resistance.
- Flexible Rotation: Supports CCW/CW rotation to match specific fan blade pitches and blower wheel orientations.
Is the Marathon K277 suitable for outdoor condensing fans?
As an Open Drip Proof (ODP) motor, it is designed for indoor use or protected environments. For direct exposure to rain or heavy debris, a TEFC motor is typically preferred.
What are the wiring requirements for the dual voltage rating?
This 3/4 HP blower motor features a standard lead configuration for 208-230V or 460V wiring. Always refer to the nameplate diagram to ensure the 3.3-3.0/1.5 Amps draw matches your circuit protection.
Does this motor include internal thermal overload protection?
Specifications for the K277 indicate no internal automatic reset protection; therefore, it should be paired with a properly sized motor starter or external overloads to prevent winding damage.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
