RELIANCE P21482C Master Ac Motor Shaft 3HP 865RPM 1-3/8

( Brand: Reliance ), ( Manufacturer Part Number: P21482C ), ( Model: P21482C-WC ), ( Part Type: Ac Motor Shaft ), ( Nema Design Letter: Design B ), ( Ac Frequency Rating: 60 Hz ), ( Shaft Type: Keyed ), ( Shaft Diameter: 1 3/8 In ), ( Insulation Class: B ), ( Current Type: Ac ), ( Service Factor: 1.00 ), ( Ac Phase: Three Phase )

Review RELIANCE Duty Master Ac Motor 3hp 865rpm 1-3/8 Inch Shaft Dia

The **Reliance P21482C Master AC Motor** is a robust, high-performance electric motor designed to deliver reliable and efficient power for a wide range of industrial, commercial, and mechanical applications. Engineered with precision, this **3 Horsepower (HP) single-phase alternating current (AC) motor** operates at a nominal speed of **865 RPM**, making it ideal for applications requiring moderate to high torque while maintaining smooth and consistent operation. The motor features a **1-3/8-inch (35mm) shaft diameter**, providing ample strength and stability for driving belts, pulleys, or direct-coupled machinery without excessive wear or vibration. Built with a **cast iron endbell and frame**, this motor offers superior durability and resistance to thermal stress, ensuring longevity even under demanding operating conditions. Its **squirrel cage induction design** guarantees efficient energy conversion, minimizing power loss and reducing operational costs over time. The **Master series** designation underscores its premium quality, featuring high-grade insulation materials that enhance thermal performance and extend the motor s lifespan. Whether integrated into conveyor systems, compressors, pumps, or other mechanical assemblies, this motor excels in delivering consistent power with minimal maintenance requirements. Its compact yet sturdy construction, combined with reliable performance, makes it a versatile choice for engineers and operators seeking a dependable workhorse in their industrial setups.

### **Pros and Cons of buying a Reliance P21482C Master AC Motor (3HP, 865 RPM, 1-3/8" Shaft)**

1. **Reliable Brand Reputation** Reliance is a well-established manufacturer in India with a strong track record in producing durable industrial motors. Their products are widely used in various applications, ensuring availability of spare parts and technical support.

2. **High Power Output (3HP)** The 3HP rating makes this motor suitable for medium-duty applications such as pumps, compressors, fans, and small industrial machinery. It provides sufficient torque for efficient operation in moderate workloads.

3. **Standardized Performance (865 RPM)** The motor operates at a standard speed (865 RPM), which is compatible with many existing mechanical systems without requiring additional gearing or speed reducers. This simplifies installation and reduces maintenance complexity.

4. **Durable Construction** As a "Master" series motor, it likely incorporates robust materials and quality control measures, ensuring longevity and resistance to wear and tear in typical industrial environments.

5. **Affordable Cost** Compared to some international brands, Reliance motors offer competitive pricing while maintaining decent performance. This makes it a cost-effective choice for budget-conscious buyers without compromising on essential reliability.

6. **Easy Availability** Being a locally manufactured product, spare parts and replacements are readily available in India, reducing downtime and repair costs.

7. **Compatibility with Common Shaft Sizes** The 1-3/8" shaft diameter is a standard size, making it easier to integrate with existing machinery or find compatible couplings and pulleys.

8. **Energy Efficiency (Relative to Older Models)** While not classified as a premium energy-efficient motor (like IE3 or IE4), it performs better than older, less efficient models, helping reduce operational costs over time.

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1. **Limited Energy Efficiency Standards** Unlike newer international motors (e.g., IE3 or IE4 rated), this motor may not meet the latest energy efficiency regulations. Over time, this could lead to higher electricity consumption, increasing operational costs.

2. **Potential for Higher Noise and Vibration** Some users report that Reliance motors, while durable, can generate more noise and vibration compared to premium brands. This may require additional soundproofing or vibration dampening in sensitive applications.

3. **Dependence on After-Sales Support** While spare parts are available, the quality of after-sales service can vary depending on the distributor or service center. In remote areas, response times for repairs or replacements might be slower.

4. **Smaller Market Presence Abroad** If you require international support or certifications (e.g., for export), Reliance motors may not be as recognized or easily adaptable to global standards compared to brands like Siemens, ABB, or WEG.

5. **Durability Concerns in Harsh Environments** While robust, prolonged exposure to extreme dust, moisture, or temperature fluctuations (without proper protection) could accelerate wear. Additional sealing or enclosure upgrades may be necessary for such conditions.

6. **Limited Customization Options** Unlike some international brands, Reliance offers fewer options for customization in terms of enclosures (e.g., explosion-proof, totally enclosed fan-cooled), which may restrict its use in specialized applications.

7. **Potential for Higher Maintenance Over Time** While initially durable, some users report that Reliance motors may require more frequent maintenance (e.g., bearing lubrication, brush replacement in DC variants if applicable) compared to premium brands.

8. **No Warranty on Spare Parts** The warranty typically covers the motor itself but may not extend to spare parts or labor costs for repairs, which could add to the total cost of ownership.

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The **Reliance P21482C 3HP AC motor** is a **practical and cost-effective choice** for applications requiring a **reliable, medium-duty motor** in India or similar markets. Its **durability, widespread availability, and compatibility with standard shaft sizes** make it a strong option for **pumps, fans, compressors, and small industrial machinery**. However, buyers should be aware of its **lower energy efficiency compared to modern standards**, potential for **higher noise/vibration**, and **dependence on local after-sales support**.

If **energy efficiency, noise reduction, or long-term reliability** are critical, investing in a **premium IE3/IE4-rated motor** (e.g., from WEG, Siemens, or ABB) may be justified despite the higher upfront cost. For **budget-conscious buyers in India** who prioritize **durability and local support**, the Reliance motor remains a **sound, practical purchase**.

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- You need a **cost-effective, reliable motor** for **standard industrial applications** in India.

- **Spare parts availability and quick replacements** are priorities.

- Your system **does not require ultra-low noise or high energy efficiency**.

- You are operating in a **moderate environment** (not extreme dust, moisture, or temperature).

- **Energy efficiency** is a key concern (look for IE3/IE4 ratings).

- Your application demands **lower noise and vibration levels**.

- You require **international certifications or global support**.

- The motor will operate in **harsh or corrosive environments** (explosion-proof or specialized enclosures may be needed).

For most **general-purpose industrial uses in India**, the Reliance motor strikes a **good balance between cost and performance**, making it a **recommended choice** for the right applications.

Details:

May show minor imperfections but nothing that will impact performance. Will come as shown and with what is pictured. Motor, For sale is a Reliance P21482C Duty Master AC Motor 3HP 865RPM 1-3/8 Shaft Dia. Etch Surplus Rochester, NY, Shipping: Shipping costs will depend on location.

For sale is a Reliance P21482C Duty Master AC Motor 3HP 865RPM 1-3/8 Shaft Dia.Item appears used and in good condition.

part #: p21482c price

• $499.99

specifications oelemot:

• brand: Reliance
• mpn: P21482c
• model: P21482c-wc
• part type: Ac Motor Shaft
• nema design letter: Design B
• ac frequency rating: 60 Hz
• shaft type: Keyed
• shaft diameter: 1 3/8 In
• insulation class: B
• current type: Ac
• service factor: 1.00
• ac phase: Three Phase

offer oelemot:

• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: May 5, 2026

payments oelemot:

• other
• wallet: Google-pay
• credit card: Discover

seller oelemot:

• rating: 100.0%
• # reviews: 14426
• city: Rochester, New York

returns oelemot:

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

shipping oelemot:

general oelemot:

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

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