{"product_id":"af24-sr-us-belimo-spring-return-proportional-damper-actuator-24v-15-nm","title":"AF24-SR US | Belimo Spring Return Proportional Damper Actuator 24V 15 Nm","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"397\" data-start=\"122\"\u003eThe Belimo AF24-SR US is a proportional spring-return damper actuator designed to deliver 15 Nm of constant torque for accurate airflow control in HVAC systems. It operates on AC\/DC 24 V power and supports both 2–10 VDC and 4–20 mA control signals with integrated position feedback.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003eBelimo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003eDampers \u0026amp; Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003eAF24-SR US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003eDamper Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e24 VAC ±20% \/ 24 VDC ±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eNominal Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003ePower Consumption (Running)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003ePower Consumption (Holding)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eTransformer Sizing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e10 VA, Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eControl Signal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e2…10 VDC, 4…20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e100 kΩ (0.1 mA), 500 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eFeedback Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e2…10 VDC, max. 0.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eTorque Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e133 in-lb (15 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eAngle of Rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e0…95°, mechanically limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eRunning Time (Motor)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e150 s constant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eRunning Time (Spring Return)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e\u0026lt;20 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eElectrical Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e18 GA cable, 3 ft, 1\/2\" conduit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eHousing Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003eNEMA 2 \/ IP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eAmbient Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e-30…50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eNoise Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003eMax. 45 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.2989%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3375%;\"\u003e6.0 lb (2.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About\u003cspan data-sheets-root=\"1\"\u003e AF24-SR US\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe AF24-SR US is part of Belimo’s AF series of spring-return actuators engineered for reliable proportional damper control in commercial HVAC installations. It features a zinc-coated metal housing with electronic overload protection throughout the full 0–95° rotation range, ensuring consistent torque and long operational life. The actuator accepts both voltage and current control signals, allowing flexible integration with a wide range of building automation systems. Reversible motor and spring rotation, visual position indication, and maintenance-free design support efficient installation and dependable long-term operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpring Return Fail-Safe Operation: Integrated spring mechanism automatically drives the damper to a defined safety position upon power loss, supporting system protection and code compliance.\u003c\/li\u003e\n\u003cli\u003eProportional Control Capability: Supports both 2…10 VDC and 4…20 mA control signals, enabling precise modulation of damper position in response to control demands.\u003c\/li\u003e\n\u003cli\u003eConstant 15 Nm Torque Output: Delivers stable 133 in-lb torque across the entire operating range, ensuring reliable damper movement regardless of load variations.\u003c\/li\u003e\n\u003cli\u003eIntegrated Position Feedback: Provides a 2…10 VDC output signal for continuous damper position monitoring and closed-loop control applications.\u003c\/li\u003e\n\u003cli\u003eReversible Direction of Rotation: Motor direction is selectable via built-in switch, while spring return direction is configurable through CW or CCW mounting.\u003c\/li\u003e\n\u003cli\u003eManual Override Function: Supplied with a hex crank to allow manual damper positioning during commissioning, testing, or power interruptions.\u003c\/li\u003e\n\u003cli\u003eDurable Enclosed Construction: Zinc-coated metal housing rated NEMA 2 \/ IP54 protects internal components in mechanical room and air-handling environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AF24-SR US delivers the reliability and precision required for proportional airflow control and dependable fail-safe damper operation in HVAC systems.\u003c\/p\u003e","brand":"Belimo","offers":[{"title":"Default Title","offer_id":51047963918634,"sku":"AF24-SR US","price":754.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_4606b584-a7dd-401b-977b-140ec3949830.webp?v=1768220898","url":"https:\/\/iqelectro.com\/products\/af24-sr-us-belimo-spring-return-proportional-damper-actuator-24v-15-nm","provider":"IQElectro","version":"1.0","type":"link"}