• Output Power: 403.2 W (with 25CFM forced air) / 254.4 W (convection)
• Output Voltage: 48 V DC
• Output Current: 8.4 A (with fan) / 5.3 A (convection)
• Input Voltage Range: 80 – 264 V AC / 113 – 370 V DC, 47 – 63 Hz
• Efficiency: up to 94 %
• Ripple & Noise: ≤ 240 mVp-p
• Inrush Current: max. 40 A @115 VAC / 80 A @230 VAC
• No Load Power Consumption: < 0.5 W (via PS_ON control)
• Operating Temperature: −30 °C to +70 °C
• Cooling: Free air convection or 25CFM forced air
• Protection Functions: Short circuit, Overload, Over voltage, Over temperature
• Operating Altitude: Up to 5000 meters
• Isolation Voltage: 3000 V AC (I/P-O/P)
• Dimensions (L x W x H): 127 mm x 76.2 mm x 35 mm
• Weight: approx. 390 g
• Safety & EMC Certificates: UL62368-1, TUV EN62368-1, EN60335-1, CB, EAC, CE
• LED Indicator: Power On Indicator
• Manufacturer Warranty: 3 Years

Information regarding the MEAN WELL EPP-400-48

The MEAN WELL EPP-400-48 is a high-performance 48V power supply engineered as a highly reliable green PCB-type solution. Despite its powerful output, it maintains a miniature 5" by 3" footprint, offering an exceptional high power density that is perfect for space-constrained industrial control systems and telecommunications equipment. This unit features a built-in active PFC function and achieves an industry-leading efficiency of up to 94%, ensuring maximum energy savings and significantly reduced thermal stress on surrounding components. Its advanced design is compatible with both Class I (with FG) and Class II (no FG) system configurations, providing developers with the ultimate flexibility for global safety compliance.

In addition to its robust power delivery, the EPP-400-48 includes a suite of integrated functionalities such as a 12V/0.5A auxiliary fan output, a 5V standby power source, and remote sense capability to ensure precise voltage accuracy at the point of load. The power supply is designed to thrive in demanding environments, featuring an operating altitude of up to 5000 meters and a comprehensive protection package that includes hiccup mode for overloads and automatic recovery for over-temperature and over-voltage faults. Certified to international standards including TUV EN60335-1 and UL62368-1, it serves as a dependable and efficient solution for industrial automation, security systems, and high-voltage electronic instruments, all backed by a 3-year manufacturer warranty.