The Belimo TFB120-SR Fail-Safe Actuator is a dependable and high-quality HVAC damper actuator designed for use in heating, ventilation, and air conditioning systems. With a power source of corded electric and a unit type of lb, this actuator is suitable for various applications. This specific model is compatible with the AFB24 and is manufactured in the United States, ensuring top-notch quality and performance. Built to last and provide reliable operation, the Belimo TFB120-SR Fail-Safe Actuator is a crucial component for HVAC systems. **All boxes have labeling of where the item would be installed in a building.