{"product_id":"nfbup-s-n4-belimo-spring-return-damper-actuator-90-in-lb-24-240-vac-nema-4x","title":"NFBUP-S N4 | Belimo Spring Return Damper Actuator 90 In Lb 24–240 VAC NEMA 4X","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"397\" data-start=\"122\"\u003eThe Belimo NFBUP-S N4 is a spring return damper actuator designed to provide reliable fail-safe operation with 90 in-lb of constant torque. It operates across a wide 24–240 VAC voltage range and features a sealed NEMA 4X enclosure for demanding indoor and outdoor HVAC applications.\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: 24.4846%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eBelimo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eDampers \u0026amp; Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eNFBUP-S N4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eDamper Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eAC 24…240 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eNominal Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003ePower Consumption (Running)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003e6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003ePower Consumption (Holding)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eTorque Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003e90 in-lb (10 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eControl Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eOn\/Off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eSpring Return\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eAuxiliary Switch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003e2x SPDT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eElectrical Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eTwo 18 AWG cables, 3 ft, 1\/2\" conduit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003e-30…50°C [-22…122°F]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eHousing Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eIP66 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eElectrical Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eDouble insulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003eUL Type 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.4846%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.1517%;\"\u003e9.2 lb\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 NFBUP-S N4\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe NFBUP-S N4 is part of Belimo’s NFB spring return actuator series engineered for dependable damper control in HVAC systems requiring positive close-off. It delivers constant torque whether power is applied or not, ensuring stable damper positioning and secure fail-safe response during power loss. The actuator can be stalled at any point within its normal rotation without the need for mechanical end switches, reducing wear and simplifying system design. Its rugged IP66 \/ NEMA 4X enclosure supports use in harsh environments where moisture, dust, or washdown conditions are present.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTrue Spring Return Fail-Safe Operation: Provides automatic return to the safety position upon power loss, ensuring reliable damper closure in critical airflow applications.\u003c\/li\u003e\n\u003cli\u003eConstant Torque Performance: Maintains full 90 in-lb torque with or without power applied, supporting consistent damper control and positive sealing.\u003c\/li\u003e\n\u003cli\u003eWide Voltage Range Capability: Operates on AC 24–240 V at 50\/60 Hz, reducing the need for multiple actuator variants across installations.\u003c\/li\u003e\n\u003cli\u003eStall Protection By Design: Can be stalled anywhere in its rotation range without mechanical end switches, preventing damage and simplifying installation.\u003c\/li\u003e\n\u003cli\u003eDual Auxiliary Switches: Includes two SPDT switches for position indication, interlocking, and system monitoring functions.\u003c\/li\u003e\n\u003cli\u003eRugged Sealed Housing: IP66 and NEMA 4X rated enclosure protects internal components from water, dust, and corrosive environments.\u003c\/li\u003e\n\u003cli\u003eDouble Insulated Construction: Enhances electrical safety and long-term reliability in demanding HVAC installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe NFBUP-S N4 delivers the reliability and precision required for fail-safe damper control and positive air shutoff in commercial and industrial HVAC systems.\u003c\/p\u003e","brand":"Belimo","offers":[{"title":"Default Title","offer_id":51048815755562,"sku":"NFBUP-S N4","price":869.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/nfb24-sr-s20n4h_51l50wte5k77trpp.jpg?v=1768248961","url":"https:\/\/iqelectro.com\/products\/nfbup-s-n4-belimo-spring-return-damper-actuator-90-in-lb-24-240-vac-nema-4x","provider":"IQElectro","version":"1.0","type":"link"}