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Mean well MDR-20-05 20 Watt Power Supply 5V 3.0A output
MPN: MDR-20-05
Alt. SKU: MDR2005
£22.08
£18.40
Why Choose the Mean Well MDR-20-05 20 W DIN Rail Power Supply?
The Mean Well MDR-20-05 is a reliable and industrial-grade 20 W DIN rail power supply delivering a stable 5 V DC output at 4 A for control panels, low-power automation systems, embedded controllers, sensors and signalling devices. Featuring a universal AC input, built-in protections, fanless convection cooling and a slim DIN rail form factor, this unit is engineered for dependable performance in compact electrical enclosures and industrial environments.
Whether you’re specifying power for a new machine, upgrading an existing control cabinet, or replacing an ageing module, the MDR-20-05 combines Mean Well’s long-standing reputation for quality with efficient operation and space-saving design to help maximise panel space and improve system reliability.
Product Code: Mean Well MDR-20-05
Key Benefits
- Stable 5 V output: Provides regulated 5 V DC at up to 4 A for logic circuits, sensors and embedded devices.
- Universal AC input: Accepts 85–264 V AC or 120–370 V DC, suitable for global installations.
- Robust protections: Built-in short circuit, overload and overvoltage protection for enhanced reliability.
- Fanless convection cooling: Silent operation with reduced maintenance demands.
- Compact DIN rail design: Slim profile for tidy installations and maximised panel space.
- Low idle power draw: Efficient operation with minimal no-load consumption.
Technical Specifications
- Manufacturer: Mean Well
- Model: MDR-20-05
- Output Voltage: 5 V DC
- Output Current: 4 A
- Output Power: 20 W
- Output Ripple & Noise: ~80 mV p-p (typical)
- Input Voltage Range: 85–264 V AC / 120–370 V DC
- Input Frequency: 47–63 Hz
- Cooling Method: Free air convection (fanless)
- Mounting: DIN rail TS-35/7.5 or TS-35/15
- Protections: Short circuit, overload, overvoltage
- No-load Power Consumption: <e; 1 W
- Isolation Voltage: 3000 VAC input-to-output
- Dimensions: ~22.5 × 90 × 100 mm
- Operating Temperature: -20 °C to +70 °C (with derating)
- Approvals: UL508, TUV/EN62368-1, CE, cURus, CB
Compatibility
The Mean Well MDR-20-05 is designed for use in industrial control panels and automation systems where a compact 20 W 5 V-output DIN rail power supply is required. Always confirm that the load requirements (current, voltage and power) match this unit’s specifications before installation.
Applications
- Industrial control cabinets and automation panels
- PLC logic power and embedded controllers
- Sensors, indicators and signal circuits
- Instrumentation and data acquisition systems
- OEM and custom industrial builds
- Maintenance, replacement and system upgrades
Supplied as a new, unused genuine Mean Well power supply, ideal for professional electrical installations and industrial automation applications.
Frequently Asked Questions
What output voltage and current does the MDR-20-05 provide?
The Mean Well MDR-20-05 delivers a regulated 5 V DC output at 4 A, providing a total of 20 W of power for low-power industrial and automation components.
What input voltages are supported?
This unit supports a wide input range of 85–264 V AC or 120–370 V DC, allowing it to be used across a variety of industrial regions and installations.
Does the MDR-20-05 require a fan or additional cooling?
No. The MDR-20-05 employs fanless convection cooling, which means reduced noise, less maintenance and improved reliability.
Does this power supply include protections?
Yes. It includes built-in short circuit, overload and overvoltage protections to safeguard both the unit and connected equipment.
Is the MDR-20-05 suitable for continuous industrial use?
Yes. With industry approvals and Mean Well’s proven build quality, this power supply is suitable for continuous operation in industrial and commercial environments.
Common Search Terms
MDR-20-05, Mean Well MDR-20-05, 5 V DIN rail power supply, 20 W DIN rail PSU, industrial automation power supply, MDR20-05 installation.
| Manufacturer Part Number | MDR-20-05 |
|---|---|
| Barcode | 4711287421964 |
| Manufacturer | Meanwell |
| Output Voltage | 5VDC |
| Output Current | 3A |
| Input Phases | Single Phase |
| Alternative Product SKU | MDR2005 |
Write Your Own Review
| The Mean Well DIN rail single phase range of MDR and DR power supplies are ideal for use inside control panels and powering a variety of other industrial applications within the control and automation market. The switched-mode PSUs within this range boast a miniature profile; perfect for when space is of a premium. The units range from 10 Watts to 100 Watts with output voltages between 5V and 48V DC. |
