• Output Power: 401.4 W (with 25CFM forced air) / 252 W (convection)
• Output Voltage: 18 V DC
• Output Current: 22.3 A (with fan) / 14 A (convection)
• Input Voltage Range: 80 – 264 V AC / 113 – 370 V DC, 47 – 63 Hz
• Efficiency: up to 93 %
• Ripple & Noise: ≤ 150 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-400-18

The MEAN WELL EPP-400-18 is a high-performance 18V power supply designed as a green PCB-type solution with a remarkably small 5" by 3" footprint. This unit is specifically engineered to provide high power density for space-constrained industrial environments while maintaining exceptional thermal management. It features a built-in active PFC function and reaches an efficiency of up to 93%, significantly reducing energy loss and ensuring cool operation even under heavy loads. Its flexible architectural design supports both Class I (with FG) and Class II (without FG) system configurations, making it a highly adaptable component for diverse mechanical and electrical equipment installations.

This power supply is equipped with a comprehensive suite of professional features, including a dedicated 12V/0.5A fan supply, a 5V standby output, and remote sense functionality to ensure precise voltage delivery at the load. The EPP-400-18 is built for reliability in extreme conditions, featuring an operating altitude capability of up to 5000 meters and robust protection against short circuits, over-voltages, and over-temperature scenarios with automatic recovery. Compliant with international safety standards such as TUV EN60335-1 and UL62368-1, it offers a superior price-to-performance ratio for industrial automation, electronic instrumentation, and security systems, supported by a 3-year manufacturer warranty.