
AF120-S-US Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $170.00 | Condition is New, Belimo Spring Return Actuator AF120-S US 120V Adjustable Travel, shipping cost = $11.16 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $221.00 | Top Pick! Condition is For parts or not working, Belimo AF120-S US Spring Return Actuator 120VAC 50/60Hz 11VA 8W - Pls Read Desc., FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $424.00 | Condition is New – Open box, BELIMO AF120-S US CPRING RETURN ACTUATOR (AS PICTURED) NSNP, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $129.99 | Condition is Used, Belimo AF120-S US Open/Close Damper Actuator 6W 120VAC, FREE SHIPPING | 100.0% |
![]() | $144.00 | Condition is Used, Belimo AF120-S US Open/Close Damper Actuator 6W 120VAC See Pics, shipping cost = $7.87 | ![]() |

The Belimo AF120-S-US (AF120SUS) is a top-of-the-line Damper Actuator designed for commercial and industrial HVAC applications. This actuator, manufactured by Belimo, a leading global supplier of automation solutions for heating, ventilation, and air conditioning systems, is renowned for its precision, reliability, and energy efficiency.
The AF120SUS is a two-wire, 2-10VDC actuator, which makes it an excellent choice for applications where power limitations exist. The actuator's compact design with a diameter of approximately 5 inches (123 mm) and a height of around 3 inches (75 mm) makes it suitable for installations with limited space.
The AF120SUS is equipped with Belimo's patented S-Type gear train, which offers superior torque and precise positioning. Its adjustable deadband feature ensures optimal energy savings by minimizing the energy consumption during transition periods. The actuator is also capable of operating in temperatures ranging from -40 F to 176 F (-40 C to 80 C), making it suitable for a wide range of applications.
The AF120SUS is designed with a robust, corrosion-resistant housing made from die-cast aluminum, ensuring the actuator can withstand the rigors of commercial and industrial HVAC environments. The actuator's durable construction and high-quality components contribute to its long lifespan and minimal maintenance requirements.
The AF120SUS is easy to install and commission, with a clear, intuitive display screen that allows for quick configuration of the actuator settings. The actuator also offers a range of communication options, including Modbus RTU, BACnet MS/TP, and BACnet IP, making it an ideal choice for building automation systems that require seamless integration with other control systems.
In summary, the Belimo AF120-S-US (AF120SUS) is a high-performance, compact, and energy-efficient damper actuator that offers superior precision, reliability, and ease of installation. Its advanced features, including the S-Type gear train, adjustable deadband, and robust construction, make it an excellent choice for commercial and industrial HVAC applications.
The Belimo AF120-S-US (AF120US) is an advanced air damper actuator designed for HVAC applications. This actuator offers several advantages and disadvantages when considered for purchase.
Advantages:1. Precision Control: The AF120US provides precise control over damper positions, ensuring optimal energy efficiency and indoor air quality in HVAC systems.
2. Wide Compatibility: This actuator is compatible with various damper types and control systems, making it a versatile option for various HVAC installations.
3. Durability: Belimo actuators are known for their robust design and long-lasting performance, making the AF120US a reliable choice for commercial and industrial applications.
4. Energy Efficiency: With its advanced control capabilities, the AF120US can help reduce energy consumption and save costs on utility bills.
5. Installation Flexibility: The actuator offers various mounting options and can be configured with different wiring schemes, making it adaptable to various installation requirements.
Disadvantages:1. Cost: The AF120US is a premium product and can carry a higher price tag compared to some other air damper actuators.
2. Complexity: The advanced features and flexibility of the AF120US might require additional installation and commissioning time and expertise.
3. Integration: Depending on the specific HVAC control system, some additional work might be required for seamless integration with the Belimo AF120US actuator.
Conclusion:The Belimo AF120-S-US actuator offers several advantages, including precise control, wide compatibility, durability, energy efficiency, and installation flexibility. However, its premium price and potential complexity might be a concern for some buyers. When considering the purchase of an air damper actuator, the AF120US is an excellent option for those seeking advanced control capabilities and a reliable, long-lasting solution.
Recommendation:If the advanced control capabilities, precision, and long-term reliability of the Belimo AF120-S-US actuator align with your HVAC project requirements, it is a highly recommended purchase. However, be prepared for the potential added cost and installation complexity. For simpler installations or smaller budgets, alternative options may be more suitable.
Details:
Sells new and surplus product develops channels to purchase such. All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed.
specifications maxohvac:
- brand: Belimo
- mpn: Af120-s-us
- part type: Hvac
seller maxohvac:
- rating: 96.7%
- city: 1 millennium dr, willingboro, nj 08046
- # reviews: 165740
offer maxohvac:
- availability: in stock
- prices: $129.99–$424.00
- item condition:
- New
- For parts or not working
- New – Open box
- Used
- options: ship-to-home
- in stock #: 5
- sold #: 22
- started: april 21, 2025
shipping maxohvac:
- class: standard
- transit: 12-19 days
- type: fixed
- service: standard
payments maxohvac:
- wallet: paypal
- credit card: discover
- other
returns maxohvac:
- policy: returns accepted
- method: money back
- time: 30 days
- paid by: buyer
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
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