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
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Manufacturer: Marathon Electric
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MPN: K278
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Horsepower: 1 hp
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Speed: 1800 RPM
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Voltage: 208-230/460 V
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Frame Size: 56
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Enclosure Type: Drip Proof
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Frequency: 60 Hz
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Weight: 27 lbs
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Applications: Blowers, fans
What Our Experts Think
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1 HP, 1800 RPM blower/fan motor designed for reliable industrial airflow.
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3-phase, 208-230/460V operation provides installation flexibility.
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Durable Marathon construction ensures long-lasting performance.
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Ideal for HVAC systems, blowers, fans, and light industrial equipment.
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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
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Keep ventilation openings free from dust and debris.
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Lubricate bearings as recommended by the manufacturer.
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Check alignment and mounting bolts regularly to reduce vibration.
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Monitor motor for unusual noise, heat, or performance issues.
