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Marathon Electric MD311 General Purpose Motor 1/2 hp 3600 RPM 115/208-230 VAC - MD311

Marathon Electric MD311 General Purpose Motor 1/2 hp 3600 RPM 115/208-230 VAC - MD311

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Marathon Electric MD311 General Purpose Motor 1/2 hp 3600 RPM 115/208-230 VAC - MD311

Marathon Electric MD311 is a TEFC General Purpose Motor designed for various applications. This motor delivers a power output of one-half horsepower and operates at three thousand six hundred revolutions per minute. It is suitable for use in environments requiring a single-phase motor with reliable performance at voltages of one hundred fifteen or two hundred eight to two hundred thirty VAC.

  • Power: 1/2 hp
  • Speed: 3600 RPM
  • Voltage: 115/208-230 VAC

This motor features a robust TEFC enclosure, ensuring protection against dust and moisture. It offers a bolt-on base for easy installation and is made from rolled steel for durability.

Specifications
  • Type: General Purpose Motor
  • Frame Size: 56
  • Phase: Single
  • Enclosure: TEFC
  • Bearings: Ball Bearing
  • Motor Voltage: 115/208-230 VAC
  • Horsepower: 0.5 hp
  • Amperage: 8.4/4.0-4.2
  • Diameter: 6.5 inches
  • Dimensions: 12 x 9 x 8.5 inches
  • Motor Speed: 3600 RPM
  • Weight: 22 pounds
What Our Experts Think
  • 1/2 HP general-purpose motor built for reliable industrial and commercial applications.

  • Operates at 3600 RPM for high-speed, efficient performance.

  • Dual-voltage 115/208-230 VAC allows flexible installation.

  • Durable Marathon construction ensures long-lasting service life.

  • Ideal for pumps, fans, compressors, conveyors, and general machinery.

Q&A

Q: What is the horsepower of this motor?
A: 1/2 HP, suitable for light to medium-duty industrial equipment.

Q: What voltage does it support?
A: 115/208-230 VAC for versatile applications.

Q: What is the motor speed?
A: 3600 RPM for fast and consistent operation.

Q: What applications is it used for?
A: Pumps, fans, blowers, conveyors, and general-purpose machinery.

Maintenance Tips
  • Keep motor clean and free of dust or debris.

  • Inspect wiring and electrical connections regularly.

  • Lubricate bearings per manufacturer’s instructions.

  • Monitor load and alignment to prevent premature wear.