MEAN WELL LRS-150-36 150W 36V 4.2A Enclosed Switching Power Supply with PFC, Metal Case, Industrial Grade

Industrial and automation projects often demand a power source that delivers stable, high-current DC voltage without the bulk or noise of open-frame designs. The MEAN WELL LRS-150-36 answers that need with a robust 150-watt enclosed switching power supply, providing a regulated 36V DC output at up to 4.2 amps. Its compact metal case, full protection suite, and wide input range make it a dependable backbone for LED lighting, CNC machinery, test equipment, and other power-hungry applications.

Who is it for

This power supply is built for system integrators, machine builders, and maintenance technicians who require a reliable, low-profile power unit for industrial control panels, automation systems, or LED installations. It is equally suitable for DIY enthusiasts working on high-power projects that demand clean, adjustable DC voltage.

Main features

• 150W output power with 36V DC and 4.2A current capacity
• Wide input range: 85~264VAC or 120~370VDC, suitable for global use
• High efficiency up to 88% and low no-load power consumption <0.5W
• Built-in protections: short circuit, overload, over voltage, over temperature
• Free air convection cooling for silent operation
• Adjustable output voltage from 32.4V to 39.6V via built-in potentiometer
• Compact metal enclosure, chassis mount with screw terminals
• Complies with major safety and EMC standards (UL60950-1, EN55032 Class B, etc.)

Specifications

• Output voltage: 36V DC (adjustable 32.4~39.6V)
• Output current: 4.2A
• Rated power: 150W
• Input voltage: 85~264VAC / 120~370VDC
• Efficiency: 88%
• Ripple & noise: 150mVp-p max
• Operating temperature: -30°C to +70°C
• Isolation voltage: 3.75kVAC (input to output)
• Safety standards: UL60950-1, TUV EN60950-1, EN60335-1, EN61558-1/-2-16
• EMC: EN55032 Class B, EN61000-3-2, EN61000-3-3
• Cooling: free air convection
• Mounting: chassis mount
• Enclosure: metal case

Tips

When installing, ensure adequate ventilation around the unit to maintain optimal operating temperature. Use appropriate wire gauges for the input and output connections, and adjust the output voltage only while the power supply is disconnected from the load. For continuous full-load operation, consider derating above 50°C ambient temperature as per the datasheet.