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  3. MARATHON ELECTRIC 8QA56T17D866A

MARATHON ELECTRIC 8QA56T17D866A Motor 208-230/460V

8qa56t17d866a Marathon Electric / 2 208-230/460v Motor

( Brand: Marathon Electric ), ( Manufacturer Part Number: 8QA56T17D866A ), ( Part Type: Motor ), ( Nominal Rated Input Voltage: 460 V )

Review MARATHON ELECTRIC 208-230/460v Motor

The **Marathon Electric 8QA56T17D866A** is a robust, high-performance electric motor designed for demanding industrial applications where reliability, efficiency, and durability are paramount. This **TEFC (Totally Enclosed Fan-Cooled)** motor operates within a versatile voltage range of **208-230/460V**, making it ideal for a wide array of commercial, manufacturing, and process control systems. Built with Marathon s signature **high-quality materials and precision engineering**, this motor delivers exceptional performance in environments where exposure to dust, moisture, or harsh conditions could otherwise compromise performance. The **8QA56 frame size** provides a balanced combination of compact design and substantial torque output, ensuring seamless integration into existing or new mechanical systems without sacrificing efficiency.

Featuring a **NEMA Premium efficiency rating**, the 8QA56T17D866A motor minimizes energy consumption while maximizing output, contributing to lower operational costs and reduced environmental impact. Its **squirrel-cage induction design** ensures smooth, consistent operation with minimal maintenance requirements, making it a cost-effective solution for continuous duty applications. The motor s **high-temperature resistance** and **corrosion-resistant coatings** further enhance its longevity, even in challenging industrial settings where exposure to chemicals, humidity, or temperature fluctuations is common. Whether used in conveyor systems, pumps, compressors, or HVAC equipment, this motor delivers **superior mechanical strength and electrical performance**, ensuring dependable operation under heavy loads.

The **T17D866A designation** indicates a **4-pole, 1725 RPM (at 60Hz) synchronous speed**, providing an optimal balance between speed and torque for a variety of applications. Its **fan-cooled enclosure** facilitates efficient heat dissipation, preventing overheating while maintaining peak performance over extended operating cycles. Additionally, the motor s **compliance with NEMA and IEC standards** ensures seamless integration with global industrial equipment, offering flexibility for manufacturers and engineers working across different regions. With **superior insulation class F** and **Class B bearing protection**, this motor is engineered to withstand prolonged use without degradation, reducing downtime and extending service life. Whether deployed in food processing plants, material handling systems, or industrial automation, the **Marathon Electric 8QA56T17D866A** stands as a testament to reliability, efficiency, and engineering excellence.

**Pros and Cons of buying a Marathon Electric 8QA56T17D866A (208-230/460V) Motor**

### **Pros**

1. **High Efficiency and Reliability** Marathon Electric is a well-established brand known for manufacturing durable, high-performance motors. This model is designed for industrial applications, offering consistent performance under heavy loads.

2. **Wide Voltage Range (208-230V/460V)** The dual-voltage capability makes it versatile for different electrical setups, reducing the need for additional voltage converters in various facilities.

3. **NEMA Premium Efficiency** This motor meets or exceeds NEMA Premium efficiency standards, meaning it consumes less energy while maintaining power output, which can lead to cost savings over time.

4. **Explosion-Proof (Exd) Rating** The motor is designed for hazardous locations (Class I, Division 2, Groups B, C, and D), making it suitable for environments with flammable gases or vapors.

5. **Long Lifespan and Low Maintenance** Built with robust construction, including sealed bearings and corrosion-resistant materials, this motor is designed for extended operational life with minimal upkeep.

6. **Compatibility with Variable Frequency Drives (VFDs)** The motor s design allows for smooth operation with VFDs, enabling energy savings and precise speed control in applications like conveyors, pumps, and compressors.

7. **Good Availability of Spare Parts** As a widely used industrial motor, replacement parts and service support are readily available from Marathon Electric and authorized distributors.

8. **Cost-Effective for Industrial Use** While the upfront cost may be higher than some basic motors, its efficiency and durability often justify the investment in industrial settings.

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### **Cons**

1. **Higher Initial Cost** Compared to standard or non-premium efficiency motors, this model has a higher purchase price, which may be a barrier for smaller businesses or budget-conscious buyers.

2. **Specialized Applications** While versatile, it is optimized for industrial use. For non-industrial or light-duty applications, a less expensive motor may suffice.

3. **Weight and Size** The robust construction means the motor is heavier and bulkier than some smaller, less powerful alternatives, which could complicate installation in space-constrained environments.

4. **Potential Overkill for Light Loads** If the motor is significantly larger than required for the application, it may run inefficiently at lower loads, negating some energy savings benefits.

5. **Dependence on Proper Installation and Maintenance** Like all high-performance motors, its longevity depends on correct installation, wiring, and maintenance. Poor handling can reduce its efficiency and lifespan.

6. **Limited Customization** This is a standard industrial motor with fixed specifications. Buyers requiring highly customized features (e.g., unique mounting options, specialized enclosures) may need additional modifications.

7. **Potential Lead Times** Depending on the distributor or region, stock availability may vary, leading to longer wait times for delivery compared to more common motor models.

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### **Conclusion**

The **Marathon Electric 8QA56T17D866A (208-230/460V) motor** is an excellent choice for industrial applications where efficiency, reliability, and durability are critical. Its NEMA Premium efficiency, explosion-proof rating, and dual-voltage compatibility make it well-suited for demanding environments like manufacturing plants, chemical processing, or hazardous locations. While the upfront cost is higher, the long-term energy savings, reduced maintenance, and extended lifespan often outweigh the initial investment.

However, if the application is lightweight, non-industrial, or operates under ideal conditions with no risk of hazardous materials, a less expensive motor may be a more practical choice. Buyers should carefully assess their specific needs load requirements, voltage availability, and environmental conditions to determine whether this motor is the best fit.

### **Recommendation**

**Buy this motor if:**

- You need a high-efficiency, durable motor for industrial or hazardous-location applications.

- Your facility operates on either 208-230V or 460V, and you want flexibility without additional converters.

- Long-term energy savings and reduced maintenance costs are priorities.

- You require a motor with a proven track record for reliability (e.g., in conveyors, pumps, or compressors).

**Avoid this motor if:**

- Your application is light-duty or non-industrial, and a standard motor would suffice.

- Budget constraints make the higher upfront cost prohibitive without clear long-term benefits.

- You lack the space or infrastructure for proper installation and maintenance.

- You require highly specialized features not offered by this standard model.

Details:

Model: 8QA56T17D866A. Condition: Used.

part #: 8qa56t17d866a price

  • $179.10

specifications oelemot:

  • brand: Marathon Electric
  • mpn: 8qa56t17d866a
  • part type: Motor
  • nominal rated input voltage: 460 V

offer oelemot:

  • options: Ship-to-home
  • availability: In Stock
  • started: April 11, 2026
  • best offers: True
  • sold: 0
  • quantity: 1

payments oelemot:

  • credit card: Discover
  • wallet: Paypal
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returns oelemot:

  • policy: No Returns

seller oelemot:

  • # reviews: 1222
  • city: Gardena, California
  • rating: 99.1%

shipping oelemot:

  • cost: $30.00
  • class: Standard
  • type: Fixed
  • service: Standard
  • transit: 4-9 Days

general oelemot:

  • Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
  • condition: Used
part type: motor, nominal rated input voltage: 460 v,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 21465425419534853,
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1 offer $179.10 USD
  • Used. Offer #1 priced at $179.10 + $30.00 shipping estimate = $209.10* total. Condition: Used. Model: .+$30.00 shipping

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