Technical Information & Details for the MEAN WELL HLG-320H-20B Power Supply
- Output Power: 300 W
- Output Voltage: 20 V DC
- Output Current: 15 A
- Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC, 47 – 63 Hz
- Efficiency: up to 93.5%
- Ripple & Noise: ≤ 150 mVp-p
- Inrush Current: max. 70 A (Cold start @ 230 VAC)
- No-load Power: < 0.75 mA / 277 VAC (Leakage Current)
- Operating Temperature: -40 °C to +90 °C (Case Temperature)
- Cooling: Fanless natural air convection
- Protection Functions: Short circuit, Overload (Constant Current Limiting), Over voltage, Over temperature
- IP Rating: IP67 (fully encapsulated and waterproof)
- Isolation Voltage: 3750 V AC between Input and Output
- Dimensions (H x W x D): 252 mm x 90 mm x 43.8 mm
- Weight: approx. 1880 g
- Safety & EMC Certificates: UL8750, EN61347-1, EN61347-2-13, IP67, EAC, CE
- Dimming Function: 3-in-1 dimming function (1-10VDC, 10V PWM, or resistance)
- Manufacturer Warranty: 7 years
Information about the MEAN WELL HLG-320H-20B
The MEAN WELL HLG-320H-20B is a high-performance 320W series AC/DC LED driver, optimized at 300W for the 20V variant, providing industry-leading reliability for professional lighting architectures. This Type B model is specifically engineered with a built-in 3-in-1 dimming interface, allowing seamless integration with 1-10VDC, 10V PWM signals, or additive resistance for advanced brightness control. Its core strength lies in its dual-mode Constant Voltage and Constant Current functionality, ensuring stable power delivery across various LED configurations. Encapsulated in a rugged metal housing with an IP67 rating, the unit is completely protected against dust and water ingress, making it the premier choice for harsh outdoor environments, high-bay lighting, and LED street lamps. The fanless thermal design achieves an outstanding efficiency of 93.5% and allows for silent operation even at peak case temperatures up to +90 °C. Featuring a built-in active PFC function and an extraordinary 7-year manufacturer warranty, the HLG-320H-20B represents a sustainable, high-quality power solution for demanding industrial and hazardous location (Type HL) applications.