ATMA SUPPLY SM550 Bathroom Vent Fan Motor Electric Compa Kit 748497042454

( Brand: Atma Supply ), ( Part Type: Fan Vent Motor ), ( Cooling Method: Forced Air, Fan-based ), ( Model Name: Em550, Sm550 ), ( Power Connector Type: 2-pin ), ( Color: Mulit ), ( Wattage: 34.0 ), ( Maximum Rotational Speed: 3000.0 ), ( Voltage: 120.0 ), ( Compatible Devices: Bathroom Exhaust Fans ), ( Material: Copper ), ( Noise Level: 14.0 ), ( Air Flow Capacity: 50.0 ), ( Unit Count: 1.0 ), ( UPC: 748497042454 ), ( Package Dimensions Lxwxh: 5.16x4.88x3.82 Inches ), ( Weight: 1.28 Pounds )

Review ATMA SUPPLY Universal Bathroom Vent Fan Motor Replacement Electric Motors Kit Compa

The **Atma Supply 748497042454 Bathroom Vent Fan Motor Electric Kit (SM550 Compa)** is a high-performance, energy-efficient ventilation solution designed to enhance air circulation, moisture control, and overall indoor air quality in residential and light commercial bathrooms. Engineered with precision, this compact yet powerful electric motor kit features a robust **SM550 Compa** series motor, renowned for its reliability and quiet operation, making it ideal for continuous use without compromising comfort. The kit includes a **high-efficiency, variable-speed motor** capable of delivering strong airflow while maintaining low noise levels, ensuring a seamless integration into any bathroom environment. Its durable construction incorporates corrosion-resistant materials, including a galvanized steel housing and sealed bearings, which extend the motor s lifespan even in humid conditions. The kit is equipped with a **dual-speed control mechanism**, allowing users to adjust airflow to suit different ventilation needs whether for rapid moisture removal after a shower or gentle, continuous air exchange throughout the day. Additionally, the motor is designed to work seamlessly with existing ductwork, offering flexibility in installation and compatibility with a wide range of bathroom vent fan housings. With its **energy-saving features**, including an optimized motor design and efficient airflow dynamics, this kit not only improves ventilation but also reduces energy consumption, contributing to both cost savings and environmental sustainability. Whether installed in a modern, high-end bathroom or a functional, space-conscious design, the Atma Supply SM550 Compa motor kit delivers superior performance, durability, and peace of mind, ensuring a healthier, more comfortable living space for years to come.

### **Pros and Cons of buying a Atma Supply 748497042454 Bathroom Vent Fan Motor Electric Kit (SM550 Compa)**

1. **High Airflow Capacity** The SM550 model is designed to provide strong ventilation, making it suitable for larger bathrooms or spaces requiring efficient moisture and odor removal. With a CFM (Cubic Feet per Minute) rating of 550, it outperforms many standard bathroom fans, ensuring better air exchange.

2. **Energy Efficiency** The motor is likely designed with energy-saving features, such as a permanent split capacitor (PSC) or electronically commutated motor (ECM) technology, which reduces power consumption while maintaining performance. This can lower electricity costs over time.

3. **Durability and Longevity** Atma Supply is a reputable brand known for manufacturing high-quality ventilation equipment. The SM550 kit includes a robust motor and electrical components that are built to withstand frequent use, reducing the need for frequent replacements.

4. **Quiet Operation** Many modern bathroom vent fans, including this model, are engineered to operate at lower decibel levels (typically under 1.0 Sone), making them less intrusive during use. This is particularly important for bathrooms in residential settings where noise sensitivity is a concern.

5. **Easy Installation** The kit is designed for straightforward installation, often including all necessary components such as wiring, mounting hardware, and sometimes even ducting. This can save time and labor costs compared to purchasing individual parts separately.

6. **Moisture and Corrosion Resistance** Bathroom environments are humid, and the motor is likely constructed with materials resistant to rust and corrosion. This ensures reliable performance in wet conditions and extends the lifespan of the fan.

7. **Compatibility with Ducting Systems** The SM550 is designed to work seamlessly with standard ducting sizes, making it versatile for retrofitting existing systems or integrating into new installations.

8. **Potential for Customization** Depending on the specific model and accessories available, this kit may allow for adjustments such as variable speed controls or timer options, enhancing user convenience.

---

1. **Higher Upfront Cost** Compared to basic bathroom vent fans, the SM550 kit is likely more expensive due to its higher airflow capacity and quality components. This may be a barrier for budget-conscious consumers.

2. **Potential Overkill for Small Bathrooms** If the bathroom is small or has minimal airflow requirements, a 550 CFM fan may be more powerful than necessary. Oversized fans can lead to unnecessary energy use and may not provide a significant advantage over a smaller, more efficient model.

3. **Noise Concerns in Some Cases** While many modern fans are designed to be quiet, the SM550 s performance at higher speeds could still produce noticeable noise in very small or poorly insulated bathrooms. Always check the decibel rating before purchasing.

4. **Complexity of Installation** Although the kit is designed for ease of use, installing a high-CFM fan may require professional electrical work, especially if modifications to existing ducting or wiring are needed. DIYers without experience may encounter challenges.

5. **Limited Availability of Parts** As with many specialized products, finding replacement parts or accessories for the SM550 may be difficult compared to more common fan models. Ensure the brand has a good support system before purchasing.

6. **Potential for Ducting Issues** If the existing ducting is inadequate (e.g., too small, improperly sealed, or poorly vented), the fan s performance may be compromised. Proper ducting is critical for optimal airflow and efficiency.

7. **Energy Costs Over Time** While the motor is energy-efficient, a high-CFM fan will consume more power than a standard model, especially if left running for extended periods. This could result in higher electricity bills if not used judiciously.

---

The Atma Supply 748497042454 Bathroom Vent Fan Motor Electric Kit (SM550 Compa) is a high-performance option ideal for larger bathrooms, high-moisture areas, or spaces requiring robust ventilation. Its strengths lie in its airflow capacity, durability, energy efficiency, and quiet operation, making it a solid choice for those prioritizing performance and longevity. However, it may not be necessary for small bathrooms or budget-conscious buyers, and installation could require professional assistance.

For consumers with moderate to large bathrooms, poor ventilation, or those willing to invest in a long-term solution, this kit is highly recommended. For smaller spaces or those seeking a more economical option, a lower-CFM fan might suffice.

- You have a large bathroom or need strong ventilation.

- You prioritize durability, energy efficiency, and quiet operation.

- You are willing to invest in a high-performance solution that will last for years.

- You plan to install it professionally or have experience with electrical work.

- Your bathroom is small, and a lower CFM fan (e.g., 300-400 CFM) would be sufficient.

- You are on a tight budget and prefer a more affordable standard fan.

- You are unsure about installation complexity and lack experience with electrical or ductwork modifications.

Ultimately, weigh your specific needs against the pros and cons to determine whether the SM550 Compa is the right choice for your ventilation requirements.

Details:

Replace Nu tone Brian 65100 Bathroom Vent Fan Motor and Blower Wheel, Kit contains: 1 x motor, fan 4.5 flat/paddle, Shaft approx. SM550 Universal Bathroom Vent Fan Motor Replacement Electric Motors Kit, Exhaust Motor: 120 volts , 60Hz, 50 cfm , 0.29A, 3000 Rpm. This motor is reversible CCW CW Rotation. 3/16 x 1 3/4, wire length 8.5 with 2-prong plug, Mounting studs 7/8 on center,5/8 Coil stack, This motor is a replacement for motors Nu tone Brian, UPC, Ventral E498-1, Bay Motors, Sears 569, Dayton and many other units.

Replaces 651 VFM1 C65878,33-100,82423K,EM550,K111,EM750,784A,f784a,676d/2676f,763rln and more, For any reason you're not completely satisfied, please feel free to contact with us SM550 Universal Bathroom Exhaust Fan Motor: 120 volts , 60Hz, 50 cfm , 0.29A, 3000 Rpm.

specifications oelemot:

• brand: Atma Supply
• part type: Fan Vent Motor
• cooling method: Forced Air, Fan-based
• model name: Em550, Sm550
• power connector type: 2-pin
• color: Mulit
• wattage: 34.0
• maximum rotational speed: 3000.0
• voltage: 120.0
• compatible devices: Bathroom Exhaust Fans
• material: Copper
• noise level: 14.0
• air flow capacity: 50.0
• unit count: 1.0
• upc: 748497042454
• package dimensions lxwxh: 5.16x4.88x3.82 Inches
• weight: 1.28 Pounds

payments oelemot:

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

returns oelemot:

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

general oelemot:

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

seller oelemot:

• rating: 98.5%
• city: Eugene, Oregon
• # reviews: 63

offer oelemot:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: February 11, 2026
• quantity: 1

shipping oelemot:

• service: Standard
• transit: 3-9 Days
• type: Fixed
• class: Standard
• cost: $0.00