H3DT521CU110 | Lutron Hi-Lume 3D Fluorescent Dimming Ballast 120–277V 21W T5

Lutron · Industrial Automation & Electrical

Description  The 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.     Technical Specifications  Condition New/Never Used Surplus Brand Lutron Category Lighting Control Part Number H3DT521CU110 Subcategory Dimming Ballasts Series Hi-Lume 3D Ballast Type Electronic, High Frequency Lamp Type T5 Linear Lamp Wattage 21 W Number of Lamps Supported 1 Starting Type Programmed Rapid Start Dimming Range 100% to 1% Continuous Dimming Type Proprietary Flicker-Free Continuous Input Voltage 120/240/277 VAC, 50/60 Hz Input Current 0.22 A (120V), 0.11 A (240V), 0.10 A (277V) Input Power 26.3 W @ 120/240V, 26.6 W @ 277V Power Factor 0.95 Total Harmonic Distortion (THD) ≤10% Ballast Factor 1.0 Wiring Type Parallel Operating Frequency 42 kHz Minimum Starting Temperature 50°F (10°C) Maximum Case Temperature 75°C Inrush Current 7 A @ 120V / 3 A @ 277V Sound Rating Class A Dimensions (L × W × H) 18 in × 1.18 in × 1 in Approvals UL935, CSA, FCC Part 18, CEC, RoHS Compliant Standards Compliance ANSI C82.11, ANSI C62.41, ANSI/ESD S20.20, ISO 9001 Country of Origin Mexico Application Commercial and architectural fluorescent dimming Weight 1.2 lb (approx.)   Information About H3DT521CU110 The 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. Key Features: Continuous Dimming: Provides full-range flicker-free dimming from 100% down to 1%. Programmed Rapid Start: Ensures optimal lamp life and reliable starting at low temperatures. High Efficiency: Operates with a 0.95 power factor and 10% maximum THD for stable performance. Wide Input Voltage: Accepts 120, 240, or 277 VAC for universal installation flexibility. High-Frequency Operation: Runs at 42 kHz to reduce flicker and noise. Thermally Protected: Class P ballast with a maximum case temperature of 75°C for safety. Compact Form Factor: 18" length for easy integration in fixture housings. Certified Performance: Meets ANSI, UL, CSA, CEC, FCC, and RoHS standards for quality and compliance. The H3DT521CU110 delivers the reliability and precision required for professional-grade dimming control in architectural and commercial fluorescent lighting applications.

Brand: Lutron · Category: Industrial Automation & Electrical

Key features

• Continuous Dimming: Provides full-range flicker-free dimming from 100% down to 1%.
• Programmed Rapid Start: Ensures optimal lamp life and reliable starting at low temperatures.
• High Efficiency: Operates with a 0.95 power factor and 10% maximum THD for stable performance.
• Wide Input Voltage: Accepts 120, 240, or 277 VAC for universal installation flexibility.
• High-Frequency Operation: Runs at 42 kHz to reduce flicker and noise.
• Thermally Protected: Class P ballast with a maximum case temperature of 75°C for safety.
• Compact Form Factor: 18" length for easy integration in fixture housings.
• Certified Performance: Meets ANSI, UL, CSA, CEC, FCC, and RoHS standards for quality and compliance.

Specifications

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