RELIANCE P21G311G Frame Master Phase Ac Motor 7.5HP 230/460V 213T

( Brand: Reliance ), ( Manufacturer Part Number: P21G311G ), ( Part Type: Ac 5hp Frame Motor )

Review RELIANCE 7.5hp 230/460v Frame Duty Master Phase Ac Motor Foot

The Reliance P21G311G 7.5HP AC Motor is a powerhouse of efficiency and reliability, designed to deliver optimal performance in a wide range of industrial applications. This motor, with its 7.5 horsepower rating, is well-suited for heavy-duty tasks that require robust and consistent power.

The motor operates on a dual voltage system, capable of functioning with both 230V and 460V power supplies, offering flexibility in various work environments. Its frame size of 213T is a standard in the industry, ensuring compatibility with numerous drive systems.

The Reliance P21G311G is a master phase motor, meaning it has a single-phase winding and a squirrel cage rotor. This design provides excellent starting torque and good running efficiency, making it an ideal choice for pumping, fan, and compressor applications.

The motor is built with high-quality materials and precision engineering, ensuring longevity and reliability. It features a robust construction, with a cast iron frame and sleeve, and a copper rotor for enhanced durability and heat resistance. The motor's fully enclosed design protects it from dust and debris, extending its lifespan and reducing maintenance requirements.

In terms of performance, the Reliance P21G311G motor offers a high power factor, reducing energy consumption and improving overall system efficiency. Its high efficiency rating not only helps in cost savings but also contributes to a greener and more sustainable industrial environment.

In conclusion, the Reliance P21G311G 7.5HP AC Motor is a reliable and efficient workhorse, designed to handle heavy-duty tasks in various industrial settings. Its dual voltage capability, standard frame size, and master phase design make it a versatile and practical choice for a wide range of applications. With its robust construction, high power factor, and energy-efficient operation, this motor is a valuable asset for any industrial operation seeking dependable performance and long-term value.

The Reliance P21G311G 7.5hp AC Motor is a heavy-duty electrical machine designed for industrial applications. Here are some pros and cons to consider before making a purchase:

1. High Power: With a 7.5 horsepower rating, this motor can handle demanding tasks.

2. Voltage Range: It offers a versatile voltage range of 230V/460V, making it suitable for various industrial settings.

3. Frame Size: The 213T frame size indicates a large motor, capable of handling heavy loads.

4. Master Phase: The Master Phase design ensures that the motor has a high starting torque, which is beneficial in many industrial applications.

1. Price: Given its high power and industrial-grade features, this motor is typically more expensive compared to smaller, single-phase motors.

2. Complexity: AC motors can be more complex to maintain and troubleshoot compared to DC motors.

3. Energy Consumption: AC motors, in general, can consume more energy compared to DC motors.

In conclusion, the Reliance P21G311G 7.5hp AC Motor is a robust and capable machine suitable for industrial applications requiring high power and heavy-duty operation. However, its high cost, energy consumption, and potential maintenance complexity should be carefully considered before making a purchase.

If you're looking for a heavy-duty motor for industrial applications and have the budget and resources to maintain it, this motor could be a good fit. On the other hand, if you're looking for a more cost-effective solution or a motor for lighter-duty applications, you might want to consider other options or smaller-sized motors.

Details:

This motor is in fair cosmetic condition. Manufacturer: Reliance Electric Company. ID No: P21G311G SJ. We applied 208V power and it spun smoothly quietly.

Notes: This motor is in good working condition. Dock or forklift. Model: P21G311G. No other testing was done.

Foot mounted. Buyer pays for all shipping costs. Specifications. Comes in non-original packaging.

Reliance P21G311G 7.5HP 230/460V 213T Frame Duty Master 3 Phase AC Motor Foot. This item is guaranteed to be as described. Totally-enclosed, fan-cooled TEFC. There are residues and dings on the output shaft.

It was a spare for the previous owner and they were not gentle with poor darling, so there are lots of scuffs/scratches small dents all over. Condition: Used.

part #: p21g311g prices

• $375.00-$699.00

specifications oelemot:

• brand: Reliance
• mpn: P21g311g
• part type: Ac 5hp Frame Motor

offer oelemot:

• quantity: 1
• availability: In Stock
• sold: 0
• best offers: True
• options: Ship-to-home
• started: November 12, 2025

seller oelemot:

• # reviews: 89732
• rating: 99.9%
• city: Leander, TX

payments oelemot:

• wallet: Paypal
• credit card: Discover
• other

returns oelemot:

• time: 30 Days
• paid by: Buyer
• method: Money back
• policy: Returns Accepted

general oelemot:

• condition: Used
• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors

shipping oelemot:

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