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US Motors (Nidec) Severe Duty AC Motor 8D3P2C - 3 HP, 1800 RPM, 182T Frame, TEFC, 460V

US Motors (Nidec) Severe Duty AC Motor 8D3P2C - 3 HP, 1800 RPM, 182T Frame, TEFC, 460V

Built for demanding industrial applications, the US Motors (Nidec) 8D3P2C Severe Duty AC Motor delivers reliable 3 HP output at 1800 RPM. With a Totally Enclosed Fan Cooled (TEFC) design and rugged cast iron construction, this motor is engineered for severe-duty performance in challenging environments. Its efficient 89.5% design ensures energy savings while providing a stable, continuous-duty power source. This 3-phase, 460V motor is ideal for heavy-duty applications such as pumps, compressors, conveyors, and other industrial machinery, making it a versatile solution for industrial facilities.

Product Specifications

Model Number: 8D3P2C

Horsepower: 3 HP

Speed: 1800 RPM (synchronous), 1770 RPM (rated)

Enclosure: Totally Enclosed Fan Cooled (TEFC)

Voltage: 460 V

Frame Size: 182T

Duty Cycle: Continuous

Service Factor: 1.15

Insulation Class: F

Motor Design Class: B

Efficiency: 89.5%

Construction: Cast Iron

Bearing Type: 30BC02J3

Rated Input Frequency: 60 Hz

Phase: Three Phase

Full Load Torque: 8.9 lb-ft

Applications and Uses

This 3 HP Severe Duty Motor is perfect for:

  • Industrial Pumps: Supports continuous-duty operations.
  • Conveyor Systems: Handles constant load and heavy-duty operation needs.
  • Manufacturing Equipment: Provides reliable, sustained power for industrial machinery.
  • Compressors: Powers compressors in severe environments, requiring high endurance.

Key Features and Benefits

Severe Duty Design: Built to withstand harsh environments with durable cast iron construction and TEFC enclosure.

High Efficiency: 89.5% efficiency to reduce operational costs.

Continuous Duty: Rated for continuous operation, supported by a service factor of 1.15, ensuring it meets demanding industrial requirements.

Reliable Power Output: Provides a full load torque of 8.9 lb-ft, ideal for applications that need consistent horsepower.

Optimized for Industrial Use: With a stable 460V input, this motor is suited for a range of high-performance applications.

Installation and Maintenance Guidelines

Installation: Mount securely to prevent vibration and connect to a 460V three-phase power supply. Proper grounding is required.

Maintenance: Inspect periodically, focusing on the TEFC enclosure and bearings. Clean any debris and follow manufacturer guidelines for bearing lubrication to maintain efficiency.

Warranty and Support

This motor includes a 3-year manufacturer's warranty covering defects and support needs.

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In-Depth Product Information and Specifications for US Motors (Nidec) Severe Duty AC Motor 8D3P2C - 3 HP, 1800 RPM, 182T Frame, TEFC, 460V

Efficiency Comparison Chart

Applications and Recommended Use Cases

In the 3 HP range, 3-phase motors like this one are commonly used to drive pumps, fans and blowers, compressors, and general material-handling equipment in industrial and commercial facilities.\nThe totally enclosed fan-cooled (TEFC) design keeps dust, dirt, and moisture away from the windings, making it a solid fit for machine shops, manufacturing floors, and other environments where an open frame would let contaminants reach the motor.\nThe severe-duty design adds extra protection against moisture, vibration, and contamination, suiting outdoor, high-vibration, or otherwise demanding installations beyond what a general-purpose motor is rated for.

Energy Cost Savings Over Time

Technical Specifications Breakdown

Horsepower: 3 HP\nSpeed: 1800 RPM\nPoles: 4\nPhase: 3-Phase\nVoltage: 460V\nNEMA Frame: 182T\nEnclosure: TEFC\nSevere duty rated

Maintenance Schedule and Requirements

Task Freq. Details
Lubrication Annually Grease bearings to maintain durability in severe-duty settings.
Insulation Resistance Test Annually Conduct insulation testing to ensure stability in harsh conditions.
Motor Alignment Check Annually Verify alignment to reduce wear on bearings and shaft.
Vibration Analysis Every 6 months Monitor vibrations to detect any potential issues early.
Temperature Monitoring Periodic Monitor motor temperature to prevent overheating in TEFC environments.
Cleaning of Enclosure Quarterly Clean the TEFC enclosure to maintain cooling efficiency in severe conditions.
Electrical Connections Inspection Every 6 months Inspect and secure electrical connections to prevent power interruptions.

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