MEAN WELL EPP-300-12 300W 12V 25A Enclosed Power Supply with PFC

Industrial-grade enclosed AC/DC power supply delivering a robust 300W output at 12V DC with active PFC, engineered for demanding automation, medical, and ITE applications. The EPP-300-12 combines high efficiency up to 93% with a wide 80~264VAC input range, ensuring reliable operation across global mains voltages while meeting stringent safety standards including 2xMOPP for medical use.

Advantages

This power supply excels in harsh environments thanks to its full protective suite—short circuit, overload, over voltage, and over temperature protections—plus a high MTBF exceeding 300,000 hours. Its compact 127 x 76.2 x 35 mm chassis and low-profile design simplify integration into space-constrained systems, while the built-in active PFC improves power quality and reduces harmonic distortion. With convection cooling up to 200W and forced-air cooling up to 300W, it adapts to both silent and high-demand installations.

Suitable for

• Industrial automation and control systems
• Medical devices requiring 2xMOPP isolation
• Test and measurement equipment
• LED lighting and signage
• Telecommunications infrastructure
• General electronics requiring a reliable 12V rail

Key specifications

• Output: 12V DC, 25A, 300W (200W convection, 300W with 20CFM forced air)
• Input: 80~264VAC / 113~370VDC, 47~63Hz
• Efficiency: Up to 93%
• Ripple & Noise: 120mVp-p
• Protections: Short circuit, overload, over voltage, over temperature
• Safety: UL62368-1, TUV EN62368-1, CB IEC62368-1, EN60601-1 (2xMOPP)
• EMC: EN55032 Class B
• Isolation: I/P-O/P 4000VAC, I/P-FG 2000VAC, O/P-FG 1500VAC
• MTBF: >300,000 hours

Recommendations

For optimal performance, ensure adequate ventilation when operating above 200W. Use appropriate wire gauges for the 25A output current, and verify that the mounting orientation allows for natural convection or provide the specified 20CFM airflow for full 300W output. Pair with MEAN WELL's recommended input fusing and transient protection for maximum reliability in industrial settings.