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Mean well MDR-40-05 40 Watt Power Supply 5V 6.0A output
MPN: MDR-40-05
Alt. SKU: MDR4005

Why Choose the Mean Well MDR-40-05 DIN Rail Power Supply?
The Mean Well MDR-40-05 is a compact 40W DIN rail power supply engineered for small automation, control, and instrumentation panels. Providing a reliable 5V DC output at 6A, it features universal AC input, high efficiency, robust protection mechanisms, and an ultra-slim housing—making it ideal for space-constrained industrial and building automation environments.
Key Takeaways
- Output: 5V DC at 6A (30W)
- Input Voltage: 85–264V AC / 120–370V DC
- High efficiency up to 77%
- Protections: Short circuit, overload, over voltage
- Cooling by free air convection
- Ultra-slim plastic case: 22.5mm width
- DIN rail mountable (TS35/7.5 or TS35/15)
- Operating temperature: -20°C to +70°C
- Compliance: UL508, EN61000-6-2, EN61000-6-4, TUV EN62368-1, CE
Frequently Asked Questions About the Mean Well MDR-40-05
- What is the output voltage and current of the MDR-40-05?
- What input voltages does it support?
- What protection features are included?
- How is the unit cooled?
- How is it mounted?
Mean Well MDR-40-05 Overview
The MDR-40-05 is part of Mean Well’s ultra-slim MDR series, supplying dependable 5V power at 6A for compact automation, control, and PLC systems. Its small form factor, global input compatibility, and comprehensive protections make it a preferred choice for engineers needing robust performance in tight enclosures or challenging environments.
Speed & Safety Benefits
- Quick installation: Ultra-slim DIN rail mounting saves space and streamlines panel wiring
- Enhanced safety: Built-in protections safeguard both equipment and users
- Efficient operation: High efficiency and convection cooling minimize energy waste and heat output
Key Features of the Mean Well MDR-40-05
- Output: 5V DC at 6A (30W)
- Input Voltage: 85–264V AC / 120–370V DC
- High efficiency up to 77%
- Protections: Short circuit, overload, over voltage
- Cooling by free air convection
- Ultra-slim plastic case: 22.5mm width
- DIN rail mountable (TS35/7.5 or TS35/15)
- Operating temperature: -20°C to +70°C
- Compliance: UL508, EN61000-6-2, EN61000-6-4, TUV EN62368-1, CE
The MDR-40-05 provides a 5V DC output at 6A, for a total output power of 30W.
This unit supports 85–264V AC or 120–370V DC, making it suitable for global and industrial installations.
It features protection against short circuit, overload, and over voltage for safe and reliable operation.
The MDR-40-05 is cooled by free air convection, with no fan required for silent, maintenance-free operation.
This power supply is designed for DIN rail mounting (TS35/7.5 or TS35/15), enabling quick and secure installation in control panels and enclosures.
Choose the Mean Well MDR-40-05 DIN Rail Power Supply for reliable, compact, and efficient 5V power in your automation and industrial control projects.
Manufacturer Part Number | MDR-40-05 |
---|---|
Manufacturer | Meanwell |
Output Voltage | 5VDC |
Product Lead Time | In Stock 2/3 days Delivery |
Output Current | 6.0Amps |
Input Phases | Single Phase |
Alternative Product SKU | MDR4005 |

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. |