• Output Power: 400.8 W (with 25CFM forced air) / 250.8 W (convection)
• Output Voltage: 12 V DC
• Output Current: 33.3 A (with fan) / 20.8 A (convection)
• Input Voltage Range: 80 – 264 V AC / 113 – 370 V DC, 47 – 63 Hz
• Efficiency: up to 91.5 %
• Ripple & Noise: ≤ 120 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-400-12

The MEAN WELL EPP-400-12 is a highly reliable green PCB-type power supply designed with an impressive high power density on a compact 5" by 3" footprint. This unit is specifically engineered for industrial applications where space is at a premium but high output performance is required. It features a built-in active PFC function and delivers a remarkable efficiency of up to 91.5%, ensuring minimal energy loss and low heat generation. Its versatile design allows it to be integrated into both Class I (with FG) and Class II (without FG) system configurations, providing engineers with significant flexibility during the hardware development phase.

Beyond its raw performance, the EPP-400-12 excels in advanced functionality and environmental resilience. It includes integrated features such as a 12V/0.5A fan supply, a 5V standby output, and remote sense capabilities to compensate for voltage drops. The power supply is protected against extreme conditions through a comprehensive suite of safeguards including hiccup mode for overloads and automatic recovery for over-temperature events. With an operating altitude of up to 5000 meters and compliance with international safety standards like UL62368-1 and EN60335-1, it serves as a robust solution for industrial automation, mechanical equipment, and electronic instruments requiring superior reliability and a 3-year manufacturer warranty.