{"product_id":"belimo-nfb24-x1-24v-fail-safe-on-off-damper-actuator","title":"Belimo NFB24-X1 24V Fail-Safe On\/Off Damper Actuator","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e   \u003c\/h4\u003e\n\u003cp dir=\"auto\" data-start=\"13\" data-end=\"403\"\u003eThe Belimo NFB24-X1 is a 24 VAC\/DC fail-safe damper actuator designed for on\/off control of HVAC air dampers. It provides 90° rotation with a 75-second motor running time and returns to its fail-safe position in less than 20 seconds under specified conditions. Its reversible fail-safe direction, manual override, and NEMA 2 enclosure provide flexible installation and dependable operation.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003col start=\"2\" data-start=\"285\" data-end=\"305\"\u003e\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBelimo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Damper Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNFB24-X1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFail-Safe Damper Actuators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC\/DC 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 19.2–28.8 V \/ DC 21.6–28.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOn\/Off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption Running\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption Holding\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransformer Sizing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.5 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Running Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75 s \/ 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFail-Safe Running Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;20 s at -20 to 50°C; \u0026lt;60 s at -30°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAngle of Rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRotation Direction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable by CW\/CCW Mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFail-Safe Direction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReversible by CW\/CCW Mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManual Override\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 mm Hex Crank (3\/16 in. Allen), Supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverload Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic, 0–95° Rotation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Power Level Motor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Power Level Fail-Safe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e62 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition Indication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMechanical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDegree of Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNEMA 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL Enclosure Type 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-22°F to 122°F (-30°C to 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°F to 176°F (-40°C to 80°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMax. 95% RH, Non-Condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAir Plenum Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL 2043\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaintenance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaintenance-Free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGalvanized Steel and Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About NFB24-X1\u003c\/h4\u003e\n\u003cp dir=\"auto\" data-start=\"13\" data-end=\"403\"\u003eThe Belimo NFB24-X1 is a 24 VAC\/DC fail-safe damper actuator designed for on\/off control of HVAC air dampers. It provides 90° rotation with a 75-second motor running time and returns to its fail-safe position in less than 20 seconds under specified conditions. Its reversible fail-safe direction, manual override, and NEMA 2 enclosure provide flexible installation and dependable operation.\u003c\/p\u003e\n\u003col start=\"3\" data-start=\"865\" data-end=\"880\"\u003e\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"877\" data-end=\"1577\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"882\" data-end=\"1588\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"898\" data-end=\"1629\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"930\" data-end=\"1652\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"951\" data-end=\"1684\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"844\" data-end=\"1605\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"873\" data-end=\"1604\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1015\" data-end=\"1740\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1114\" data-end=\"1993\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"793\" data-end=\"1520\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"760\" data-end=\"1448\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"897\" data-end=\"1571\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"829\" data-end=\"1519\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"858\" data-end=\"1525\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"974\" data-end=\"1739\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"884\" data-end=\"1783\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"855\" data-end=\"1564\"\u003e\u003c\/ul\u003e\n\u003cul data-spread=\"false\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"938\" data-end=\"1698\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"985\" data-end=\"1739\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"996\" data-end=\"1760\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"986\" data-end=\"1760\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"911\" data-end=\"1622\"\u003e\n\u003cli data-section-id=\"alvr7o\" data-start=\"911\" data-end=\"1000\"\u003e24 VAC\/DC Operation: Accepts 24 VAC or 24 VDC power within the specified voltage range.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"16uriuc\" data-start=\"1001\" data-end=\"1078\"\u003eOn\/Off Control: Provides two-position control for HVAC damper applications.\u003c\/li\u003e\n\u003cli data-section-id=\"nbv5wr\" data-start=\"1079\" data-end=\"1193\"\u003eFail-Safe Return: Returns to the selected fail-safe position in less than 20 seconds under specified conditions.\u003c\/li\u003e\n\u003cli data-section-id=\"4enbx\" data-start=\"1194\" data-end=\"1279\"\u003e90° Rotation: Provides adjustable 90-degree damper rotation with a mechanical stop.\u003c\/li\u003e\n\u003cli data-section-id=\"1sw5dxy\" data-start=\"1280\" data-end=\"1364\"\u003e75-Second Running Time: Completes 90 degrees of motor-driven travel in 75 seconds.\u003c\/li\u003e\n\u003cli data-section-id=\"1v9g7bs\" data-start=\"1365\" data-end=\"1451\"\u003eManual Override: Includes a supplied 5 mm hex crank for manual actuator positioning.\u003c\/li\u003e\n\u003cli data-section-id=\"87sqpz\" data-start=\"1452\" data-end=\"1544\"\u003eElectronic Overload Protection: Protects the actuator throughout the 0–95° rotation range.\u003c\/li\u003e\n\u003cli data-section-id=\"afrzj4\" data-start=\"1545\" data-end=\"1622\"\u003ePlenum Compliance: UL 2043 compliant for suitable air-plenum installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" data-start=\"1624\" data-end=\"1726\"\u003eThe NFB24-X1 delivers the reliability and precision required for fail-safe on\/off HVAC damper control.\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul data-spread=\"false\"\u003e\u003c\/ul\u003e\n\u003cul data-spread=\"false\"\u003e\u003c\/ul\u003e","brand":"Belimo","offers":[{"title":"Default Title","offer_id":52821087060266,"sku":"NFB24-X1","price":435.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/2026-10-03_13.16.16.png?v=1791026245","url":"https:\/\/iqelectro.com\/products\/belimo-nfb24-x1-24v-fail-safe-on-off-damper-actuator","provider":"IQElectro","version":"1.0","type":"link"}