Marathon Electric K278 Blower/Fan Motor - 3 PH, 1 HP, 1800 RPM, 208-230/460 V - K278

Marathon Electric K278 Blower/Fan Motor - 3 PH, 1 HP, 1800 RPM, 208-230/460 V - K278

The Marathon Electric K278 Blower/Fan Motor is a three-phase motor designed for demanding applications. This motor operates at one horsepower and provides a synchronous speed of one thousand eight hundred RPM. It is suitable for voltages of two hundred eight to two hundred thirty or four hundred sixty volts.

Product Highlights

The K278 motor is built for efficiency and reliability in industrial settings. Its robust construction ensures consistent performance across various applications.

Features

• Durable drip proof (DP) enclosure
• Continuous duty with a service factor of 1.15
• Standard frame size of fifty-six

Specifications

What our Experts Think

• 1 HP Output: Optimized for blower and fan applications requiring consistent airflow and moderate power.

• 1800 RPM Speed: Balanced speed for efficient air movement without excessive noise—great for HVAC and ventilation systems.

• Three-Phase Power (208-230/460V): Compatible with most commercial and industrial setups, ensuring smooth, energy-efficient operation.

• Application-Specific Design: Tailored for blower/fan duties with performance and durability in mind.

• Built to Last: Marathon quality ensures long service life, even in demanding environments.

Q&A

Q: What is the Marathon Electric K278 Motor?
A: The K278 is a 1 HP, 1800 RPM, three-phase blower/fan motor designed for 208-230/460V applications, delivering reliable airflow performance in HVAC and industrial systems.

Q: What are the key features?
A: 1 HP, 1800 RPM, three-phase operation, voltage flexibility (208-230/460V), designed specifically for blowers and fans, and built for continuous-duty cycles.

Q: Where is this motor commonly used?
A: Ideal for HVAC systems, ventilation units, industrial blowers, and fan assemblies requiring consistent, quiet, and efficient air movement.

Q: Why choose the K278 model?
A: Its dependable performance, versatile voltage compatibility, and durable build make it a go-to choice for commercial and industrial airflow applications.

Q: Is the K278 motor energy-efficient?
A: Yes, it's engineered for efficient operation with lower energy draw, helping to reduce overall power consumption in high-usage systems.

Maintenance Tips

• Keep motor and ventilation openings clean to prevent overheating and maintain optimal airflow.

• Lubricate bearings at intervals specified by the manufacturer for smooth, reliable performance.

• Confirm proper voltage supply (208-230/460V) to avoid electrical strain or inefficiency.

• Ensure stable, aligned mounting to reduce vibration and mechanical wear, especially in blower/fan applications.

• Inspect regularly for unusual noise, vibration, or temperature spikes, which may signal internal issues.

• Secure all electrical connections to maintain consistent, safe power delivery.

• Check insulation resistance annually to ensure long-term safety and performance.