MDR-20-5 Power Supply 85-264VAC 1 Phase input, output 5 volts DC 3.0 Amps
MPN: MDR-20-5
Alt. SKU: MDR205

Why Choose the Mean Well MDR-20-5 DIN Rail Power Supply?
The Mean Well MDR-20-5 is an ultra-compact 20W DIN rail power supply engineered for space-constrained industrial control panels, automation, and building management systems. Delivering a reliable 5V DC output at 2.4A, this model combines energy efficiency, robust protection, and simple DIN rail mounting for versatile, low-power applications.
Key Takeaways
- Output: 5V DC at 2.4A (12W)
- Input Voltage: 85–264V AC / 120–370V DC
- High efficiency up to 78%
- Protections: Short circuit, overload, over voltage
- Cooling by free air convection
- DIN rail mountable (TS35/7.5 or TS35/15)
- Ultra-slim plastic case: 22.5mm width
- Operating temperature: -20°C to +70°C
- Compliance: UL508, TUV EN60950-1, CE, CB, EAC
Frequently Asked Questions About the Mean Well MDR-20-5
- What is the output voltage and current of the MDR-20-5?
- What are the input voltage ranges supported?
- What protection features are included?
- How is the unit cooled?
- What are the mounting options?
Mean Well MDR-20-5 Overview
The MDR-20-5 is part of Mean Well’s MDR series of slim DIN rail power supplies, known for reliable performance and energy efficiency in tight spaces. It is suitable for compact industrial automation, low-power control equipment, and signaling systems, with stable output and full protection features.
Speed & Safety Benefits
- Quick installation: Slim DIN rail mounting saves valuable space
- Enhanced safety: Comprehensive built-in protections for user and equipment
- Efficient operation: Low standby power, reliable for continuous use
Key Features of the Mean Well MDR-20-5
- Output: 5V DC at 2.4A (12W)
- Input Voltage: 85–264V AC / 120–370V DC
- High efficiency up to 78%
- Protections: Short circuit, overload, over voltage
- Cooling by free air convection
- DIN rail mountable (TS35/7.5 or TS35/15)
- Ultra-slim plastic case: 22.5mm width
- Operating temperature: -20°C to +70°C
- Compliance: UL508, TUV EN60950-1, CE, CB, EAC
The MDR-20-5 provides a 5V DC output at 2.4A, delivering a total power of 12W.
It supports a wide input voltage range of 85–264V AC and 120–370V DC for flexible global integration.
This power supply includes protections against short circuit, overload, and over voltage for safe and reliable operation.
The MDR-20-5 uses free air convection for cooling, requiring no external fans.
It is designed for DIN rail mounting, compatible with TS35/7.5 or TS35/15 rails for simple, fast installation.
Choose the Mean Well MDR-20-5 DIN Rail Power Supply for dependable, space-saving, and efficient low-voltage power in your automation or control systems.