• Output Power: 321.6 W
• Output Voltage: 48 V DC (adjustable from 43 – 52 V)
• Output Current: 6.7 A (adjustable from 3.35 – 6.7 A)
• Input Voltage Range: 90 – 264 V AC / 128 – 370 V DC, 47 – 63 Hz
• Efficiency: 95%
• Ripple & Noise: ≤ 250 mVp-p
• Inrush Current: max. 70 A @ 230 VAC (cold start)
• No-load Power Consumption: < 0.5 W
• Operating Temperature: −55 °C to +70 °C
• Cooling: fanless free air convection
• Protections: Short circuit, Overload (hiccup mode), Over voltage, Over temperature
• Protection Rating / Enclosure: IP65, aluminum case fully potted with heat-conductive silicone
• Vibration Resistance: Withstands 10G vibration test
• Surge Immunity: 6 kV surge immunity level
• Isolation Voltage: 3750 V AC input-to-output
• Dimensions (L x W x H): 252 mm x 90 mm x 43.8 mm
• Weight: approx. 1.88 kg
• Safety & EMC Standards: UL62368-1, IEC62368-1, IP65, EAC, CB, CE
• Warranty: 6 years

Information about MEAN WELL HEP-320-48A

Engineered to deliver high-efficiency 48 V DC output in environments with severe humidity, dust, and temperature swings, the MEAN WELL HEP-320-48A stands out as a ultra-rugged industrial power solution. Protected by a heavy-duty aluminum housing sealed to an IP65 rating, it isolates sensitive internal electronics from external contamination, while fanless conduction thermal management supports continuous full-load output from −55 °C to +70 °C. Built to endure harsh mechanical stress, it is fully rated for 10G vibration testing stability alongside 6 kV surge protection, making it ideal for outdoor telecom base stations, mining shafts, and rugged billboard displays. Demonstrating superior field reliability and manufacturing precision, this unit includes a 6-year warranty.