MEAN WELL RD-65A 65W Dual Output AC/DC Power Supply - 5V/8A + 12V/2.5A, 88-264VAC Input, Passive Cooling, Silver

With a robust 65W total output across dual rails, the MEAN WELL RD-65A delivers 5V at 8A and 12V at 2.5A simultaneously, making it a workhorse for industrial control systems, automation, and LED signage. Its wide 88–264VAC input range and 47–63Hz frequency tolerance ensure reliable operation on virtually any mains supply worldwide, while passive cooling guarantees silent, maintenance-free performance.

Overview

The RD-65A is a compact, chassis-mount AC/DC power supply engineered for demanding embedded applications. It converts universal AC input into two isolated DC outputs with excellent regulation and low ripple. The unit is housed in a silver aluminium enclosure that doubles as a heatsink, dissipating heat efficiently without a fan. Protection features include overload, overvoltage, and short-circuit safeguards, ensuring long-term reliability in harsh environments.

What stands out

• Dual output: 5V/8A and 12V/2.5A, total 65W
• Universal AC input: 88–264VAC, 47–63Hz
• Passive cooling – zero fan noise, ideal for noise-sensitive areas
• Full protection: overload, overvoltage, short circuit
• Wide operating temperature: -25°C to +70°C
• Complies with UL 60950-1, TUV EN 60950-1, CB, CE
• High MTBF: >200,000 hours

Technical details

• Input voltage: 88–264VAC
• Input frequency: 47–63Hz
• Output 1: 5VDC, 8A
• Output 2: 12VDC, 2.5A
• Total output power: 65W
• Efficiency: 78% typical
• Ripple & noise: 80mVp-p (5V), 120mVp-p (12V)
• Protection: overload, overvoltage, short circuit
• Cooling: passive (convection)
• Operating temperature: -25°C to +70°C
• Storage temperature: -40°C to +85°C
• Safety standards: UL 60950-1, TUV EN 60950-1, CB, CE
• MTBF: >200,000 hours
• Mounting: chassis mount
• Colour: silver

Our verdict

The RD-65A is a proven, reliable solution for powering mixed-voltage electronics. Its dual outputs, wide input range, and rugged design make it a favourite among system integrators. The passive cooling and high MTBF translate to low maintenance and long service life, justifying its position as a cost-effective industrial power supply.