{"product_id":"h3dt521cu110-lutron-hi-lume-3d-fluorescent-dimming-ballast-120-277v-21w-t5","title":"H3DT521CU110 | Lutron Hi-Lume 3D Fluorescent Dimming Ballast 120–277V 21W T5","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Lutron H3DT521CU110 Hi-Lume 3D Fluorescent Dimming Ballast is a high-frequency electronic ballast designed for T5 linear fluorescent lamps. Operating on 120–277 VAC, it provides smooth, flicker-free continuous dimming from 100% to 1%, ensuring precise light control and energy efficiency in commercial and architectural lighting systems.\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%; height: 411.47px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eLutron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eLighting Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eH3DT521CU110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eDimming Ballasts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eHi-Lume 3D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eBallast Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eElectronic, High Frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eLamp Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eT5 Linear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eLamp Wattage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e21 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eNumber of Lamps Supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eStarting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eProgrammed Rapid Start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eDimming Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e100% to 1% Continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eDimming Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eProprietary Flicker-Free Continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e120\/240\/277 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eInput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e0.22 A (120V), 0.11 A (240V), 0.10 A (277V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eInput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e26.3 W @ 120\/240V, 26.6 W @ 277V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003ePower Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e0.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eTotal Harmonic Distortion (THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e≤10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eBallast Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eWiring Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eParallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eOperating Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e42 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eMinimum Starting Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e50°F (10°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eMaximum Case Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e75°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eInrush Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e7 A @ 120V \/ 3 A @ 277V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eSound Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eClass A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e18 in × 1.18 in × 1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eUL935, CSA, FCC Part 18, CEC, RoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eANSI C82.11, ANSI C62.41, ANSI\/ESD S20.20, ISO 9001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eMexico\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003eCommercial and architectural fluorescent dimming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39.2909%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4898%;\"\u003e1.2 lb (approx.)\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 H3DT521CU110\u003c\/h4\u003e\n\u003cp\u003eThe H3DT521CU110 belongs to the Hi-Lume 3D series of Lutron electronic dimming ballasts, engineered for superior light quality and efficiency. Featuring proprietary full-range dimming technology, it supports one F21T5 lamp with a programmed rapid start for extended lamp life. The ballast operates at a high frequency of 42 kHz to eliminate flicker and audible noise, maintaining a Class A sound rating and power factor of 0.95. With UL, CSA, and FCC approvals, it is ideal for high-performance indoor lighting requiring precise, smooth dimming control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous Dimming: Provides full-range flicker-free dimming from 100% down to 1%.\u003c\/li\u003e\n\u003cli\u003eProgrammed Rapid Start: Ensures optimal lamp life and reliable starting at low temperatures.\u003c\/li\u003e\n\u003cli\u003eHigh Efficiency: Operates with a 0.95 power factor and 10% maximum THD for stable performance.\u003c\/li\u003e\n\u003cli\u003eWide Input Voltage: Accepts 120, 240, or 277 VAC for universal installation flexibility.\u003c\/li\u003e\n\u003cli\u003eHigh-Frequency Operation: Runs at 42 kHz to reduce flicker and noise.\u003c\/li\u003e\n\u003cli\u003eThermally Protected: Class P ballast with a maximum case temperature of 75°C for safety.\u003c\/li\u003e\n\u003cli\u003eCompact Form Factor: 18\" length for easy integration in fixture housings.\u003c\/li\u003e\n\u003cli\u003eCertified Performance: Meets ANSI, UL, CSA, CEC, FCC, and RoHS standards for quality and compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe H3DT521CU110 delivers the reliability and precision required for professional-grade dimming control in architectural and commercial fluorescent lighting applications.\u003c\/p\u003e","brand":"Lutron","offers":[{"title":"Default Title","offer_id":49105142186240,"sku":"H3DT521CU110","price":551.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/h3dt832cu110_1_1__91011.1740497126.png?v=1785541181","url":"https:\/\/alotechparts.com\/products\/h3dt521cu110-lutron-hi-lume-3d-fluorescent-dimming-ballast-120-277v-21w-t5","provider":"Alo Tech Solutions","version":"1.0","type":"link"}