The Belimo AFBUP is a heavy-duty spring return actuator engineered for reliable on/off control in demanding HVAC applications. This 180 in-lb torque actuator provides significant force to handle larger dampers and valves, ensuring positive fail-safe positioning during power loss. Its universal power supply accepts 24 to 240 VAC or 24 to 125 VDC, simplifying inventory for contractors servicing diverse commercial sites. Built with a rugged NEMA 2 rated housing, the AFBUP motor features a mechanical position indicator and a manual override crank for easier commissioning and field adjustments. This fail-safe actuator is designed for high-cycle performance, maintaining precise control over air flow or fluid dynamics in complex building automation systems. By integrating the Belimo AFBUP, technicians can ensure robust linkage connectivity and long-term operational stability without the need for multiple voltage-specific models on the truck. Key Benefits Universal Voltage Compatibility: Operates on any AC voltage from 24V to 240V and DC from 24V to 125V, eliminating the need for dedicated transformers. High Torque Output: Delivers 180 in-lb of torque, sufficient for driving large-scale dampers and high-pressure valve assemblies. True Spring Return: Provides a mechanical fail-safe solution to protect equipment during power interruptions. Flexible Installation: Features a reversible mounting design to accommodate either clockwise or counter-clockwise fail-safe requirements. Manual Override: Includes a built-in crank for manual positioning during installation or emergency maintenance. Common Questions What is the typical run time for the Belimo AFBUP? The motor typically drives the actuator in 75 seconds, while the spring return fail-safe mechanism engages in less than 20 seconds upon power loss. Can the AFBUP be used in outdoor applications? The standard unit is NEMA 2 rated; however, for extreme weather or wash-down environments, a protective NEMA 4X weather shield is recommended. Does this model include auxiliary switches? The base AFBUP is a standard on/off model. For applications requiring end-stop feedback, technicians should verify the specific suffix for integrated auxiliary switches or use add-on kits. This item is not eligible for free shipping. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
