{"product_id":"belimo-afb24-sr-s-damper-actuator-180-in-lb-spring-return-24v","title":"Belimo AFB24-SR-S Damper Actuator 180 In-lb Spring Return 24V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BELIMO AFB24-SR-S is a spring-return damper actuator rated at 180 in-lb of torque, designed for modulating control of HVAC dampers in commercial and industrial air-handling systems. It operates on a 24 VAC or 24 VDC power supply, drawing 8.5 VA, and accepts an analog control signal for precise positioning across the full damper stroke. The zinc-coated metal and plastic housing carries a NEMA 2 and IP54 enclosure rating, making it suitable for indoor installations where limited moisture exposure is a concern. Licensed HVAC technicians and building automation contractors are the primary installers of this actuator.\u003c\/p\u003e\u003cp\u003eThe AFB24-SR-S is applied in commercial HVAC systems where modulating damper control is required, such as variable air volume (VAV) boxes, mixed-air plenums, and outdoor air intake dampers. The spring-return function drives the damper to its fail-safe position on loss of power, which is a common code requirement in smoke-control and fresh-air applications. This actuator is suited for both new construction and retrofit installations where a direct-coupled, spring-return design is specified.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e180 in-lb rated torque for reliable damper authority across a range of duct sizes and blade configurations\u003c\/li\u003e\n\u003cli\u003eSpring-return mechanism provides fail-safe damper positioning on power loss\u003c\/li\u003e\n\u003cli\u003eAccepts 24 VAC or 24 VDC power supply for flexible system integration\u003c\/li\u003e\n\u003cli\u003eAnalog modulating control signal for continuous, proportional damper positioning\u003c\/li\u003e\n\u003cli\u003eNEMA 2 and IP54 enclosure rating provides protection against dripping water and dust ingress\u003c\/li\u003e\n\u003cli\u003eZinc-coated metal and plastic casing for durability in mechanical room environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style direct-coupled replacement actuator for commercial HVAC damper assemblies requiring a spring-return, modulating, 24-volt actuator with 180 in-lb of torque.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician or building automation controls contractor. Disconnect and lock out all power to the air-handling unit and control panel before mounting or wiring the actuator. The actuator mounts directly to the damper shaft without a crank arm; verify shaft size and clamp engagement before applying power. Control wiring should comply with applicable local codes and NEMA standards for low-voltage wiring.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque\u003c\/strong\u003e: 180 in-lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply\u003c\/strong\u003e: 24 VAC, 24 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply VA\u003c\/strong\u003e: 8.5 VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Supply Voltage\u003c\/strong\u003e: 24 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Signal\u003c\/strong\u003e: Analog (Modulating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Return\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e: NEMA 2, IP54\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: Zinc Coated Metal and Plastic Casing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BELIMO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: AFB24-SR-S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BELIMO","offers":[{"title":"Default Title","offer_id":51283932021042,"sku":"AFB24-SR-S (SAP#104271)","price":767.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309279022.jpg?v=1781063523","url":"https:\/\/voomisupply.com\/products\/belimo-afb24-sr-s-damper-actuator-180-in-lb-spring-return-24v","provider":"Voomi Supply","version":"1.0","type":"link"}