DAYTON LR-15561 Ac Induction Blower Motor 2N879J 1/3HP 1140/950RPM

( Brand: Dayton ), ( Manufacturer Part Number: LR-15561 ), ( Model: 2N879-J ), ( Part Type: Ac Blower Motor ), ( Rated Load: Hp ), ( Nema Design Letter: Design B ), ( Base Rpm: 1140 ), ( Ac Motor Type: Induction/asynchronous )

Review DAYTON Lr15561 Industrial Ac Induction Blower Motor 1/3hp 1140/950rpm

The **Dayton LR-15561 2N879J AC Induction Blower Motor** is a high-performance, durable, and versatile electric motor designed for demanding applications requiring reliable airflow and consistent operation. Part of Dayton s trusted line of industrial-grade motors, this **1/3 horsepower (0.33 hp)** unit delivers efficient performance with a robust construction tailored for continuous use in HVAC systems, ventilation units, exhaust fans, and other air-moving applications. Engineered with precision, the motor features a **split-phase induction design**, ensuring smooth startup and stable operation under varying load conditions. Its **1140 RPM (at 120V) / 950 RPM (at 240V)** speed rating provides optimal airflow while maintaining energy efficiency, making it an ideal choice for both residential and light commercial setups where precise airflow control is essential.

Built to withstand the rigors of daily operation, the Dayton LR-15561 incorporates a **cast iron housing** for enhanced durability and resistance to thermal expansion, while its **ball-bearing construction** ensures smooth, low-vibration performance over extended periods. The motor s **AC induction design** eliminates the need for brushes or complex maintenance, reducing wear and tear while extending its operational lifespan. With a **NEMA 1 (drip-proof) enclosure**, it is well-suited for indoor applications where protection against dust and light moisture is required, though it is not rated for outdoor or harsh environmental conditions. The motor s **universal voltage compatibility (120V or 240V)** further enhances its flexibility, allowing for easy integration into existing electrical systems without the need for additional voltage conversion.

Ideal for applications such as **furnace blowers, attic ventilation fans, exhaust systems, and small commercial HVAC units**, this motor delivers a reliable balance of power and efficiency. Its compact yet sturdy design allows for easy installation in tight spaces, while its **standard NEMA 56C frame** ensures compatibility with a wide range of fan blades and ductwork configurations. Whether used in a residential attic fan, a small commercial kitchen exhaust system, or a space heating/cooling setup, the Dayton LR-15561 provides the consistent airflow and dependable performance required to maintain optimal indoor air quality and system efficiency. With its reputation for quality and longevity, this motor is a dependable choice for professionals and DIY enthusiasts alike seeking a high-performance, low-maintenance solution for their air-moving needs.

### **Pros and Cons of buying a Dayton LR-15561 (2N879J) AC Induction Blower Motor (1/3 HP, 1140/950 RPM)**

1. **Reliable Performance** Dayton is a well-known brand in the HVAC and industrial motor market, offering durable and dependable motors for long-term use. This motor is designed for consistent operation in applications like furnaces, air handlers, and ventilation systems.

2. **High Efficiency** As an AC induction motor, it provides smooth, efficient airflow without the complexity of brushes or commutators, reducing maintenance needs compared to DC motors.

3. **Dual-Speed Capability** The motor operates at **1140 RPM at 60 Hz** and **950 RPM at 50 Hz**, making it versatile for global use where power frequencies differ. This flexibility ensures compatibility with different electrical systems.

4. **1/3 Horsepower Rating** Suitable for moderate airflow applications, such as small furnaces, exhaust fans, or air circulation systems, without excessive power consumption.

5. **Compact and Lightweight** The design is optimized for space efficiency, making it easier to install in tight or confined areas.

6. **Low Maintenance** AC induction motors generally require minimal upkeep, primarily involving occasional lubrication of bearings (if applicable) and ensuring clean airflow to prevent overheating.

7. **Compatibility with Standard Systems** Fits common HVAC setups and can be easily integrated into existing ductwork or ventilation systems with minimal modifications.

8. **Cost-Effective for Its Class** While not the cheapest motor on the market, it offers a balance between performance and affordability for its intended applications.

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1. **Limited Power for Heavy-Duty Use** At only **1/3 HP**, this motor may struggle with high-resistance airflow (e.g., clogged ducts, excessive static pressure) or large-scale ventilation needs. Larger applications may require a higher horsepower motor.

2. **No Built-In Overload Protection** Unlike some motors with thermal overload protection, this model relies on external safeguards (e.g., circuit breakers or relays) to prevent damage from overloads or short circuits.

3. **Potential Noise and Vibration** Induction motors can produce some noise and vibration, especially if the motor or mounting surface is not perfectly balanced or if the motor is overloaded.

4. **Dependence on Electrical Supply** Performance is directly tied to the quality of the power supply. Voltage fluctuations, harmonics, or poor wiring can reduce efficiency or lifespan.

5. **Not Ideal for High-Speed Precision Applications** While it operates at two speeds, it is not designed for applications requiring precise speed control (e.g., variable-speed fans). A variable-frequency drive (VFD) would be needed for such uses.

6. **Limited Availability of Replacement Parts** As a discontinued or less common model, finding replacement parts (e.g., bearings, seals) may be challenging compared to more widely used motors.

7. **No Built-In Enclosure Protection** The motor lacks a sealed or weatherproof enclosure, which could be a concern if used in dusty, humid, or corrosive environments. Additional protection (e.g., a guard or enclosure) may be required.

8. **Potential for Overheating in Poor Ventilation** If installed in a confined space without adequate airflow around the motor, it may overheat, reducing efficiency or lifespan.

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The **Dayton LR-15561 (2N879J) AC Induction Blower Motor** is a solid choice for **moderate-duty, general-purpose airflow applications** such as small furnaces, exhaust fans, or ventilation systems where reliability and dual-speed operation are valued. Its **durability, efficiency, and compatibility with 50/60 Hz systems** make it a practical option for many HVAC and industrial uses. However, it is **not ideal for high-load, high-precision, or harsh-environment applications** without additional modifications.

For **light to medium airflow needs** where cost and simplicity are priorities, this motor is a **good recommendation**. If the application involves **high resistance, extreme conditions, or variable speed requirements**, a higher horsepower motor or one with additional protections (e.g., sealed enclosure, VFD compatibility) would be more appropriate.

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- You need a **reliable, dual-speed (1140/950 RPM) blower motor** for standard HVAC or ventilation tasks.

- Your application involves **moderate airflow resistance** and does not require extreme precision or high power.

- You prefer a **well-known brand** with a track record of durability.

- Budget and space constraints favor a **compact, 1/3 HP solution**.

- Your system requires **high airflow resistance** (e.g., long ducts, heavy filters).

- You need **precise speed control** or variable-frequency operation.

- The environment is **dusty, corrosive, or extremely humid** without additional protection.

- You anticipate **frequent overloads** without external safeguards.

For most **residential or light commercial HVAC setups**, this motor is a **sound purchase**. For heavier or more demanding applications, consider upgrading to a **higher HP motor or one with enhanced protections**.

Details:

Dayton 2N879J LR15561 Industrial AC Induction Blower Motor 1/3HP 1140/950RPM. The model number 2N879-J indicates a specific design and performance profile, making it reliable choice for various business industrial settings requiring efficient dependable motor operation. With a base RPM of 1140, this induction motor from Dayton is suitable for industrial automation and motion control applications. Untested but presumed to be working well.

part #: lr15561 prices

• $79.99-$189.99

specifications oelemot:

• brand: Dayton
• mpn: Lr-15561
• model: 2n879-j
• part type: Ac Blower Motor
• rated load: Hp
• nema design letter: Design B
• base rpm: 1140
• ac motor type: Induction/asynchronous

shipping oelemot:

• transit: 3-6 Days
• cost: $0.00
• service: UPS Ground
• type: Calculated
• class: Standard
• carrier: UPS

seller oelemot:

• # reviews: 5665
• city: Chicago, Illinois
• rating: 99.8%

general oelemot:

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

returns oelemot:

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

offer oelemot:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1
• best offers: True
• started: February 6, 2026

payments oelemot:

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

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