{"product_id":"bf24-sr-belimo-spring-return-damper-actuator-18nm-24vac-dc-modulating-control","title":"BF24-SR | Belimo Spring Return Damper Actuator 18Nm 24VAC DC Modulating Control","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"397\" data-start=\"122\"\u003eThe Belimo BF24-SR is a spring-return damper actuator designed for precise control and reliable fail-safe operation in HVAC air handling systems. The BF24-SR operates on AC\/DC 24 V power and provides accurate modulating control with integrated position feedback for monitoring damper position.\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: 23.8182%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eBelimo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eHVAC Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eBF24-SR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eDamper Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eAC\/DC 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eNominal Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eAC 19.2…28.8 V \/ DC 21.6…28.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003ePower Consumption (Operation)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e7 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003ePower Consumption (Rest)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003ePower Consumption (Wire Sizing)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e10 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eInrush Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e8.3 A @ 5 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eControl Signal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e2…10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e100 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003ePosition Feedback\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e2…10 V, max. 0.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003ePosition Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eMotor Torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e18 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eFail-Safe Torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e12 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eAngle of Rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eMax. 95°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eRunning Time (Motor)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e\u0026lt;120 s \/ 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eRunning Time (Fail-Safe)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e16 s @ 20°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eAmbient Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e-30…50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eAmbient Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eMax. 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eService Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003eMaintenance-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8182%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.8182%;\"\u003e2.6 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 BF24-SR\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe BF24-SR is a spring-return damper actuator from Belimo’s safety-focused actuator range, engineered for applications requiring controlled positioning and automatic movement to a defined safety position during power loss. It combines a robust motor drive with a mechanical spring-return mechanism, ensuring dependable operation under both normal and emergency conditions. The BF24-SR supports modulating control via a 2…10 V input signal and provides a 2…10 V position feedback output for system integration and diagnostics. Dual auxiliary switches, halogen-free cabling, and selectable mounting orientation allow flexible installation in commercial and industrial HVAC damper assemblies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpring-Return Fail-Safe Function: Automatically drives the damper to the safety position in the event of power loss using a high-reliability spring mechanism.\u003c\/li\u003e\n\u003cli\u003eModulating Control Signal: Accepts a 2…10 V control input for precise proportional damper positioning.\u003c\/li\u003e\n\u003cli\u003eHigh Torque Performance: Provides 18 Nm motor torque and 12 Nm fail-safe torque to handle demanding damper loads.\u003c\/li\u003e\n\u003cli\u003eIntegrated Position Feedback: Supplies a 2…10 V feedback signal to indicate actual damper position with ±5% accuracy.\u003c\/li\u003e\n\u003cli\u003eDual Auxiliary Switches: Includes 2x SPDT switches for position indication, interlocking, or system monitoring functions.\u003c\/li\u003e\n\u003cli\u003eManual Override Capability: Features a manual override with position stop for commissioning and maintenance procedures.\u003c\/li\u003e\n\u003cli\u003eWide Environmental Tolerance: Designed for stable operation across broad temperature and humidity ranges in HVAC environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe BF24-SR delivers the reliability and precision required for modulating damper control with fail-safe protection in HVAC systems.\u003c\/p\u003e","brand":"Belimo","offers":[{"title":"Default Title","offer_id":51047786807594,"sku":"BF24-SR","price":967.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/H847abe35474f4afd93618382264a30d8U.png?v=1768209577","url":"https:\/\/iqelectro.com\/products\/bf24-sr-belimo-spring-return-damper-actuator-18nm-24vac-dc-modulating-control","provider":"IQElectro","version":"1.0","type":"link"}