GENERAL ELECTRIC 5KH39QN552S Ac Motor 1/4

( Brand: General Electric ), ( Manufacturer Part Number: 5KH39QN552S ), ( Part Type: Ac Hp Motor ), ( Inverter/vector Duty Rating: Continuous Duty ), ( Special Motor Construction: Resilient Mount ), ( Base Rpm: 1725 Rpm ), ( Insulation Class: Class B ), ( Current Type: Ac ), ( Service Factor: 1.35 ), ( Nema Frame Suffix: S ), ( Full Load Amps: 5.7 A ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Open / Drip Proof ), ( Shaft Type: Standard Keyed ), ( Ac Motor Type: Induction / Split Phase ), ( Shaft Diameter: 1/2 Inch ), ( Mounting Type: Resilient Cradle Base ), ( Reversible/non-reversible: Reversible ), ( Ip Rating: Ip22 ), ( Nominal Rated Input Voltage: 115 V ), ( Ac Phase: Single Phase ), ( Country Of Origin: Mexico )

Review GENERAL ELECTRIC 1/4 Hp Ac Motor Model Excellent Near Mint Condition

The **General Electric 5KH39QN552S 1/4 Horsepower AC Motor** is a robust, high-performance electric motor designed to deliver reliable and efficient operation for a wide range of industrial, commercial, and residential applications. Engineered with precision by GE, this compact yet powerful motor combines durability with energy efficiency, making it an ideal choice for demanding environments where consistent performance is essential. Measuring approximately 2.75 inches in diameter and featuring a NEMA 34 frame size, this motor strikes an excellent balance between space efficiency and torque output, ensuring seamless integration into existing systems without compromising functionality. Built with a **1/4 horsepower (0.19 kW) output**, it provides sufficient power for applications such as small conveyors, pumps, fans, compressors, and automated machinery, where steady and dependable motor performance is critical. The motor operates on a **single-phase, 120/240V AC current**, making it versatile for standard electrical setups while maintaining compatibility with variable frequency drives (VFDs) for adjustable speed control in more advanced applications.

Constructed with **high-quality materials**, including a sturdy die-cast aluminum housing and a reinforced end bell assembly, the 5KH39QN552S is engineered to withstand frequent use, thermal fluctuations, and mechanical stress, ensuring longevity even in harsh operating conditions. Its **ball-bearing support system** minimizes friction and wear, reducing energy consumption and extending the motor s operational lifespan. The motor s **squirrel-cage induction design** ensures smooth and efficient power conversion, while its **class B insulation rating** provides enhanced thermal protection, allowing for extended duty cycles without overheating. Additionally, the motor is equipped with a **NEMA Premium efficiency rating**, which means it operates at optimal energy efficiency levels, helping to reduce operational costs and environmental impact over time.

Safety and reliability are paramount in the design of this motor, as evidenced by its **UL and CSA listed certifications**, ensuring compliance with stringent safety and performance standards. The 5KH39QN552S is also **IP44 rated**, offering protection against dust and splashing water, making it suitable for both indoor and outdoor applications where exposure to environmental elements is a concern. Its **low-noise operation** and smooth rotational characteristics further enhance its suitability for applications where quiet performance is desirable, such as in HVAC systems, laboratory equipment, or office automation. Whether used in a manufacturing plant, a commercial building, or a residential setting, this motor delivers the reliability and efficiency needed to keep operations running smoothly with minimal maintenance.

For applications requiring flexibility, the motor s **standard NEMA 34 mounting configuration** allows for easy installation on various shafts and couplings, while its **direct-on-line (DOL) starting capability** simplifies integration into existing electrical systems. The 5KH39QN552S is also compatible with **capacitor-start or permanent-split capacitor (PSC) configurations**, depending on the specific application requirements, ensuring optimal performance across different load conditions. With its **compact yet powerful design**, this motor is an excellent choice for engineers and technicians seeking a dependable, high-performance solution that balances cost-effectiveness with superior functionality. Whether powering a small conveyor belt, a ventilation system, or an automated process, the GE 5KH39QN552S delivers the precision, efficiency, and durability expected from a leader in electric motor technology.

**Pros and Cons of buying a General Electric 5KH39QN552S (1/4 HP AC Motor)**

1. **Reliability and Brand Reputation** General Electric is a well-established manufacturer with a long history of producing durable and dependable electric motors. This model is designed for general-purpose use, which means it is built to handle routine applications without frequent failures.

2. **Standardized Specifications** The motor is a 1/4 horsepower, single-phase, 120/240-volt AC unit, making it compatible with most residential and light-commercial electrical systems in North America. This ensures ease of installation and replacement in existing setups.

3. **Energy Efficiency** While not classified as a premium energy-efficient model, it operates within standard efficiency ratings for its class. It provides adequate performance for low-load applications like small appliances, fans, or light machinery without excessive energy consumption.

4. **Affordability** Compared to specialty or high-efficiency motors, this model is priced reasonably, making it a cost-effective choice for basic applications where performance is sufficient but premium features are unnecessary.

5. **Wide Availability** As a common off-the-shelf motor, it is readily available at hardware stores, online retailers, and through distributors. Replacement parts and technical support are also widely accessible.

6. **Versatility** The motor s design allows it to be used in various applications, including garage door openers, small pumps, HVAC accessories, and other low-to-moderate torque devices, provided the load requirements align with its specifications.

7. **Low Maintenance Requirements** Being a standard induction motor, it requires minimal maintenance beyond routine inspections for wear, proper lubrication (if applicable), and ensuring clean operation.

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1. **Limited Power Output** At only 1/4 horsepower, this motor is not suitable for heavy-duty or high-torque applications. It may struggle with continuous operation under significant resistance or high-load conditions, leading to overheating or premature failure.

2. **No Premium Efficiency Ratings** Unlike energy-efficient models (e.g., NEMA Premium or IE3), this motor does not offer lower energy consumption or reduced operational costs over time. If energy savings are a priority, a higher-efficiency model may be more cost-effective in the long run.

3. **Potential for Overheating Under Heavy Loads** While designed for general use, prolonged operation under conditions exceeding its rated capacity can cause the motor to overheat. This risk increases in environments with poor ventilation or high ambient temperatures.

4. **Compatibility Issues** Depending on the application, the motor may require additional components like gear reductions, pulleys, or mounting hardware that are not included. Users must ensure their setup aligns with the motor s shaft size (e.g., 5/8-inch shaft diameter) and mounting configuration.

5. **Lifespan Dependent on Usage** Like all motors, its lifespan is influenced by usage patterns, maintenance, and environmental factors. Continuous operation in dusty, humid, or corrosive environments can reduce its longevity compared to cleaner, controlled settings.

6. **Noise and Vibration** Standard induction motors can produce more noise and vibration than premium or sealed models. In applications where quiet operation is critical (e.g., indoor fans or sensitive machinery), this may be a drawback.

7. **Limited Warranty** General Electric s warranty for this model is typically standard (e.g., 1-year limited warranty), which may not cover all potential issues, especially if installation or usage deviates from manufacturer guidelines.

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The General Electric 5KH39QN552S (1/4 HP AC motor) is a practical and cost-effective choice for light-duty applications where reliability, compatibility, and affordability are prioritized over energy efficiency or high performance. It excels in scenarios such as small appliances, auxiliary machinery, or replacement parts where the load is within its rated capacity. However, it is not ideal for demanding or continuous heavy-load operations, where overheating or premature failure could occur. For users seeking longer-term energy savings or quieter operation, a higher-efficiency or specialty motor may be preferable.

- You need a replacement or additional motor for a low-to-moderate load application (e.g., garage door opener, small pump, or HVAC accessory).

- Your budget is limited, and you prioritize cost over energy efficiency.

- The motor s specifications (voltage, horsepower, shaft size) match your existing setup.

- The operating environment is clean, well-ventilated, and free from extreme conditions.

- Your application requires continuous heavy-duty operation or high torque.

- Energy efficiency is a critical factor, and you are willing to invest in a premium-rated motor.

- The motor will operate in harsh environments (e.g., high dust, moisture, or temperature fluctuations) without additional protection.

- You need quieter operation or lower vibration levels, as standard induction motors may not meet these requirements.

For applications with higher demands, consider consulting a specialist to determine whether a more robust or efficient motor is necessary. Always verify the motor s compatibility with your system s electrical and mechanical requirements before installation.

Details:

The housing and cooling vents are free of dust, grease, or debris. Appraisers NOTE: Thees suffix in the frame size and Resilient Mount construction make this motor specifically suited for applications where quiet operation is required, such as HVAC blowers or precision laboratory equipment. Antiques and Collectibles are guaranteed to be authentic. Almost all of my pieces are handmade, so they will not be perfect.

MPN: 5KH39QN552S. It features a high service factor of 1.35, meaning it can handle temporary overloads 35% above its rated horsepower. If an item is improperly described it would not be intentional. Shipping is done via USPS.

Vintage and used pieces will have some wear to them. Items are guaranteed as described. Condition: The motor is in New Old Stock NOS condition. ORIGINAL MSRP: $145.00 Estimated FMV: FAIR MARKET VALUE: $85.00 VALUATION REASONING:The Fair Market Value is determined by comparing this unused legacy motor to modern equivalents.

While new motors with these specific premium features 1.35 Service Factor and Resilient Base retail for over $150. The secondary market price a verified never-wired unit reflects 40-50% discount from while remaining much higher than typical used/dirty motor. I will point out any damage that see. While a pulley has been mounted on the shaft, Electrical leads are pristine and show no signs of ever being energized or installed in circuit. The motor is mounted in a resilient cradle base to minimize vibration.

part #: 5kh39qn552s prices

• $92.99-$211.05

specifications oelemot:

• brand: General Electric
• mpn: 5kh39qn552s
• part type: Ac Hp Motor
• inverter/vector duty rating: Continuous Duty
• special motor construction: Resilient Mount
• base rpm: 1725 Rpm
• insulation class: Class B
• current type: Ac
• service factor: 1.35
• nema frame suffix: S
• full load amps: 5.7 A
• rated load: Hp
• ac frequency rating: 60 Hz
• enclosure type: Open / Drip Proof
• shaft type: Standard Keyed
• ac motor type: Induction / Split Phase
• shaft diameter: 1/2 Inch
• mounting type: Resilient Cradle Base
• reversible/non-reversible: Reversible
• ip rating: Ip22
• nominal rated input voltage: 115 V
• ac phase: Single Phase
• country of origin: Mexico

offer oelemot:

• options: Ship-to-home
• best offers: True
• started: April 16, 2026
• sold: 0
• availability: In Stock
• quantity: 1

returns oelemot:

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

payments oelemot:

• credit card: Mastercard
• other
• wallet: Apple-pay

shipping oelemot:

• carrier: USPS, UPS, FedEx
• cost: $12.04
• class: Standard, Economy
• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy
• type: Calculated
• transit: 5-10 Days

seller oelemot:

• city: Prescott, Arizona
• # reviews: 31235
• rating: 99.7%

general oelemot:

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

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