MEAN WELL RSP-500-5 400W 5V 80A 1U Enclosed Power Supply with PFC and Fan

Industrial and telecom systems often demand a power source that combines high current output, compact 1U height, and reliable operation under demanding conditions. The MEAN WELL RSP-500-5 answers that need with a robust 400W single-output supply delivering 5V at up to 80A, all within a low-profile 1U enclosure. Its active PFC and wide input range make it suitable for worldwide use, while the built-in fan with speed control maintains optimal thermals even at full load.

Who is it for

This power supply is ideal for system integrators, automation engineers, and IT professionals building or maintaining servers, network equipment, industrial control panels, and LED lighting arrays that require stable 5V DC power in a space-constrained 1U rack environment.

Main features

• High efficiency up to 88% reduces energy waste and operating costs.
• Active PFC (Power Factor Correction) meets EN61000-3-2, lowering harmonic distortion.
• Wide input voltage range: 85~264VAC or 120~370VDC for flexible deployment.
• Adjustable output voltage from 4.5V to 5.5V for fine-tuning to load requirements.
• Comprehensive protections: short circuit, overload, over voltage, and over temperature.
• Built-in DC fan with speed control for quiet, efficient cooling.
• Remote sense and remote ON/OFF control for system integration.
• Auxiliary 5V/0.3A standby output for monitoring or control circuits.
• Compact 1U low-profile form factor fits standard racks and tight spaces.

Specifications

• Output voltage: 5V DC
• Output current: 80A
• Output power: 400W
• Input voltage (AC): 85~264VAC
• Input voltage (DC): 120~370VDC
• Efficiency: 88%
• Ripple & noise: 100mVp-p max
• Operating temperature: -30°C to +70°C
• Isolation voltage: I/P-O/P 3kVAC, I/P-FG 2kVAC, O/P-FG 0.5kVAC
• Certifications: UL, CUL, TUV, CE, CB
• Cooling: Built-in DC fan with speed control
• Dimensions: 1U height, chassis mount

Tips

When integrating the RSP-500-5, ensure adequate airflow around the unit and keep the fan intake unobstructed. Use the remote sense function to compensate for voltage drops in long cable runs. For rack installations, secure the chassis properly to avoid vibration. Always verify that the total load does not exceed 400W and that the input voltage matches your mains supply.