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.

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

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

Specifications

• Manufacturer: Marathon Electric
• MPN: K278
• Horsepower: 1 hp
• Speed: 1800 RPM
• Voltage: 208-230/460 V
• Frame Size: 56
• Enclosure Type: Drip Proof
• Frequency: 60 Hz
• Weight: 27 lbs
• Applications: Blowers, fans

What Our Experts Think

• 1 HP, 1800 RPM blower/fan motor designed for reliable industrial airflow.

• 3-phase, 208-230/460V operation provides installation flexibility.

• Durable Marathon construction ensures long-lasting performance.

• Ideal for HVAC systems, blowers, fans, and light industrial equipment.

• Compact, efficient motor for continuous-duty operation.

Q&A

Q: What is the horsepower and speed of this motor?
A: 1 HP with 1800 RPM, perfect for fans and blowers.

Q: What voltage does it support?
A: Dual voltage — 208-230V or 460V, 3-phase.

Q: Where is this motor commonly used?
A: HVAC systems, blowers, fans, and industrial machinery requiring steady airflow.

Maintenance Tips

• Keep ventilation openings free from dust and debris.

• Lubricate bearings as recommended by the manufacturer.

• Check alignment and mounting bolts regularly to reduce vibration.

• Monitor motor for unusual noise, heat, or performance issues.