MEAN WELL LRS-50-12 50.4W 12V 4.2A Enclosed Power Supply

The MEAN WELL LRS-50-12 is a 50.4W enclosed AC/DC power supply delivering a stable 12V output at up to 4.2A. Its wide input range of 85–264VAC and free-air convection cooling make it a versatile choice for industrial automation, LED lighting, and general electronics.

Advantages

High efficiency up to 86% reduces energy consumption and heat generation. The metal case ensures durability and effective shielding. Comprehensive protections include overload, overvoltage, and short circuit, safeguarding both the supply and connected loads. A wide operating temperature range of -30°C to +70°C allows deployment in harsh environments. Low ripple and noise (120mVp-p) ensure clean power for sensitive circuits.

Suitable for

• Industrial control systems and automation equipment
• LED lighting and signage
• Test and measurement instruments
• Telecommunication devices
• General electronic applications requiring reliable 12V DC power

Key specifications

• Output power: 50.4W
• Output voltage: 12V DC (adjustable 10.2–13.8V)
• Output current: 4.2A
• Input voltage: 85–264VAC / 120–370VDC
• Input frequency: 47–63Hz
• Efficiency: 86%
• Protections: overload, overvoltage, short circuit
• Operating temperature: -30°C to +70°C
• Ripple & noise: 120mVp-p
• Cooling: free air convection
• Safety standards: UL62368-1, TUV EN62368-1, EAC TP TC 004
• Isolation: I/P-O/P 3.75kVAC, I/P-FG 2kVAC, O/P-FG 1.25kVAC

Recommendations

For reliable 12V power in demanding environments, the LRS-50-12 offers excellent performance and longevity. Ensure adequate ventilation and derate output above 50°C ambient for continuous operation.