• Output Power: 40 W (Peak load 45 W for 10 sec.)
• Output Voltage: 5 V DC
• Output Current: 8 A (Current range 0 – 9 A)
• Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz
• Efficiency: 82%
• Ripple & Noise: ≤ 80 mVp-p
• Inrush Current: Cold start 60 A @230 VAC
• No-Load Power Consumption: < 0.3 W
• Operating Temperature: −30 °C to +70 °C
• Cooling: Fanless free air convection
• Protections: Short circuit, Overload, Over voltage
• Voltage Adj. Range: 4.75 – 5.5 V DC
• Isolation Voltage: 3000 V AC between input and output
• Dimensions (L x W x H): 101.6 mm x 50.8 mm x 29 mm (PCB version)
• Weight: approx. 140 g (PCB version) / approx. 300 g (Optional enclosed version)
• Safety & EMC Certificates: UL62368-1, TUV BS EN/EN62368-1, EAC, CCC, CE
• Form Factor: Open-frame PCB power supply (4" x 2") / optional enclosed (-C)
• Manufacturer Warranty: 3 Years

Information about MEAN WELL EPS-45-5

The MEAN WELL EPS-45-5 is a high-efficiency, board-mountable open-frame PCB power supply featuring an industry-standard 4" x 2" compact footprint (101.6 x 50.8 mm). Designed for space-constrained industrial, control, and embedded equipment, this module features a low-profile height of just 29 mm (PCB version), making it an ideal choice for tight enclosures. Operating on a broad universal input range of 90 to 264 V AC, it maintains an exceptionally low no-load power consumption of under 0.3 W, supporting eco-friendly energy initiatives and efficient standby performance.

A key strength of the EPS-45-5 lies in its robust fanless design using natural air convection, enabling silent, maintenance-free operation across temperature environments ranging from −30 °C to +70 °C. An onboard LED power indicator provides clear visual confirmation of operational status, while the nominal 5 V output can be fine-tuned via an onboard trimmer (4.75–5.5 V DC) to compensate for voltage drops. Built-in protection circuitry safeguards against short circuits, overloads (hiccup mode), and overvoltage, ensuring maximum operational resilience. Backed by global safety standards like UL62368-1 and TUV alongside a solid 3-year manufacturer warranty, this module delivers reliable performance.