RELIANCE 6339622-002 High Ac Induction Motor 2-POLE T268158

( Brand: Reliance ), ( Manufacturer Part Number: 6339622-002 ), ( Part Type: Ac Motor )

Review RELIANCE High speed 2-pole Ac Induction Motor

The **Reliance 6339622-002 High-Speed 2-Pole AC Induction Motor (T268158)** is a precision-engineered electric motor designed to deliver exceptional performance in demanding industrial and commercial applications. Part of Reliance s robust line of high-efficiency motors, this model features a **2-pole configuration**, enabling it to operate at an exceptionally high speed of **3,450 RPM** when powered by a standard 60Hz AC supply, making it ideal for applications requiring rapid motion and high torque output. Constructed with a **totally enclosed, fan-cooled (TEFC) design**, this motor ensures reliable operation in environments where dust, moisture, and debris are present, while the integrated axial fan promotes efficient heat dissipation, extending the motor s lifespan and maintaining optimal performance under continuous operation.

The motor s **high-speed induction design** leverages advanced magnetic and mechanical engineering to minimize energy loss, resulting in superior efficiency and reduced operational costs. Its **cast aluminum housing** provides durability and resistance to corrosion, while the **ball-bearing support system** ensures smooth, vibration-free operation even under heavy loads. The **2-pole configuration** not only maximizes speed but also reduces the motor s physical size relative to its power output, making it a space-efficient solution for compact machinery and automation systems. Whether integrated into conveyor systems, pumps, compressors, or industrial fans, this motor delivers consistent and reliable performance with minimal maintenance requirements.

Built to meet stringent industry standards, the **Reliance 6339622-002** incorporates **NEMA Premium efficiency ratings**, ensuring compliance with energy-saving regulations while maintaining high power factor performance. Its **standard NEMA 56C frame** provides compatibility with a wide range of industrial gearboxes, couplings, and mechanical assemblies, simplifying installation and integration into existing systems. The motor s **class F insulation** enhances thermal resistance, allowing for extended operational durations without compromising safety or performance. Additionally, its **low-noise operation** and precise speed control make it suitable for applications where quiet, stable performance is critical, such as in cleanroom environments or precision manufacturing processes.

For applications requiring flexibility, the motor s **standard AC voltage rating of 230/460V** accommodates a variety of electrical setups, while its **high starting torque** ensures reliable acceleration even under heavy inertial loads. The **Reliance brand s reputation for quality and reliability** is further reinforced by the motor s **long-term durability**, backed by comprehensive warranty support and readily available replacement parts. Whether deployed in manufacturing plants, HVAC systems, or material handling equipment, the **6339622-002 High-Speed 2-Pole AC Induction Motor** represents a dependable, high-performance solution for industries seeking efficiency, speed, and longevity in their mechanical drives.

**Pros and Cons of buying a Reliance 6339622-002 High-Speed 2-Pole AC Induction Motor (T268158)**

### **Pros**

1. **High Efficiency and Performance** As a 2-pole motor, it operates at high speeds (typically 3000 RPM for 50Hz), making it suitable for applications requiring rapid motion, such as pumps, compressors, or industrial machinery. Its design ensures better power-to-weight ratio and reduced energy consumption compared to lower-speed motors.

2. **Reliability and Durability** Reliance Motors are known for their robust construction, using high-quality materials and precision engineering. This motor is likely built to withstand continuous operation under moderate to heavy loads, reducing the risk of frequent breakdowns.

3. **Compatibility with Standard Systems** Being a standard AC induction motor, it integrates seamlessly with existing electrical systems (e.g., 3-phase AC supply). It does not require complex control mechanisms like variable frequency drives (VFDs) for basic operation, though these may be needed for speed control in some applications.

4. **Cost-Effective for High-Speed Applications** For applications where high rotational speed is critical (e.g., centrifugal fans, certain types of conveyors, or small-scale generators), this motor offers a balance between performance and affordability compared to specialized high-speed alternatives.

5. **Easy Maintenance** AC induction motors are generally low-maintenance. They have fewer moving parts than DC motors, and routine checks (e.g., bearing lubrication, terminal connections) are straightforward. Reliance s reputation suggests good after-sales support for troubleshooting or replacements.

6. **Wide Availability of Spares** As a common industrial motor, replacement parts (e.g., bearings, windings, seals) are readily available from Reliance or third-party suppliers, reducing downtime in case of failure.

7. **Suitable for Light to Medium-Duty Industrial Use** If the application involves consistent, predictable loads (e.g., driving a blower or a small lathe), this motor can deliver consistent performance without overheating, provided it is correctly sized for the load.

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### **Cons**

1. **Limited Speed Control Without Additional Equipment** Unlike DC motors or AC motors with VFDs, this motor runs at a fixed speed determined by the supply frequency (e.g., 3000 RPM for 50Hz). For applications requiring variable speed, a VFD would be necessary, adding to the initial and operational costs.

2. **Higher Inrush Current** High-speed motors often draw significant current during startup, which can stress electrical systems or require larger circuit breakers. This may necessitate additional protective measures (e.g., soft starters) to avoid tripping or equipment damage.

3. **Sensitivity to Load Variations** AC induction motors can experience inefficiency or overheating if subjected to sudden load changes or overloads. If the application involves frequent starts/stops or fluctuating loads, the motor may require oversizing or additional safeguards.

4. **Noise and Vibration** High-speed motors can generate more noise and vibration compared to lower-speed counterparts, which may be a concern in noise-sensitive environments or applications requiring smooth operation (e.g., precision machinery).

5. **Higher Initial Cost for Some Applications** While the motor itself may be reasonably priced, the need for additional components (e.g., VFDs, couplings, or custom mounts) to optimize its use could increase the total cost. For very high-speed or specialized applications, a dedicated motor (e.g., a permanent magnet motor) might be more cost-effective in the long run.

6. **Limited Lifespan Under Heavy or Continuous Loads** If the motor is consistently operated at or near its maximum capacity, wear on components like bearings and windings may accelerate, reducing its lifespan. Proper sizing and cooling are essential to mitigate this.

7. **Dependence on Supply Frequency** The motor s speed is directly tied to the AC supply frequency. In regions with unstable power supply or varying frequencies, the motor s performance may be inconsistent, requiring additional stabilization equipment.

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### **Conclusion**

The **Reliance 6339622-002 2-pole AC induction motor** is a solid choice for applications requiring high rotational speed, such as industrial pumps, compressors, or machinery where simplicity and reliability are prioritized. Its efficiency, durability, and ease of maintenance make it a practical option for standard high-speed needs. However, its fixed-speed operation and potential for higher inrush current or noise may pose challenges in certain environments. Additionally, the need for supplementary equipment (e.g., VFDs) for speed control could increase costs and complexity.

If your application demands **consistent high-speed operation without variable speed requirements**, this motor is well-suited. Conversely, if **speed variability, ultra-high precision, or extreme load conditions** are involved, a more specialized motor (e.g., a VFD-compatible motor or a permanent magnet motor) might be preferable.

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### **Recommendation**

- You need a **high-speed (3000 RPM) motor** for a **fixed-speed application** (e.g., centrifugal pumps, industrial fans, or conveyors).

- Your electrical system can handle the **inrush current** without additional protection.

- You prioritize **reliability, ease of maintenance, and cost-effectiveness** for standard industrial use.

- The application does not require **fine speed control** (or you are willing to invest in a VFD later).

- Your application requires **variable speed control**, as this will necessitate a VFD, adding to the system cost.

- The environment is **noise-sensitive**, and vibration/noise levels are a concern.

- The motor will be subjected to **frequent overloads or extreme operating conditions**, which could shorten its lifespan.

- You are working with **unstable power supply** conditions that may affect motor performance.

- If speed control is critical, evaluate a **VFD-compatible motor** (e.g., a 4-pole motor with a VFD to achieve higher speeds).

- For **ultra-high-speed or precision applications**, consider a **permanent magnet motor** or a **specialized high-speed motor**.

- Ensure the motor is **correctly sized** for your load to avoid inefficiency or premature wear. Consult Reliance s technical specifications or a motor specialist to confirm the appropriate horsepower or kW rating for your application.

Details:

Glad you stopped by. Extra Information:: With a 60 HP rating and speed of 3560 RPM, you are looking at High-Speed, 2-Pole AC Induction Motor. We proudly sell hard-to-find parts, components, and machines to makers manufacturers.

part #: 6339622002 price

• $2099.99

specifications oelemot:

• brand: Reliance
• mpn: 6339622-002
• part type: Ac Motor

offer oelemot:

• availability: In Stock
• started: March 12, 2026
• best offers: True
• quantity: 1
• sold: 0
• options: Ship-to-home

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• time: 30 Days
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• policy: Returns Accepted

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• city: El Paso, Texas
• # reviews: 21456
• rating: 99.7%

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

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