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MDR-40-5 Power Supply 85-264VAC 1 Phase input, output 5 volts DC 6.0 Amps

MPN: MDR-40-5

Alt. SKU: MDR405

£29.28 £24.40

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Why Choose the Mean Well MDR-40-5?

The Mean Well MDR-40-5 is a reliable and compact 40 W DIN rail power supply designed to deliver stable 5 V DC output at up to 8 A for industrial control panels, embedded electronics, small automation systems and signalling circuits. Its ultra-slim DIN rail mount form factor makes it ideal for installations with limited space that still require dependable 5 V DC power.

Featuring a wide universal AC input range, fan-free convection cooling and built-in protection features, the MDR-40-5 provides quiet, low-maintenance performance across industrial, commercial and building applications. It’s a practical choice for panel builders, machine integrators and maintenance engineers seeking a compact and robust 5 V DC supply solution.

Product Code: Mean Well MDR-40-5

Key Benefits

  • Stable 5 V DC output: Provides regulated 5 V DC at up to 8 A for control, automation and embedded loads.
  • 40 W rated power: Suitable for mid-range DC applications and signalling circuits.
  • Universal input range: Works with a wide AC input range for flexible installation options.
  • Fan-free convection cooling: Quiet, maintenance-free operation.
  • Ultra-slim DIN rail mount: Saves panel space and supports tidy wiring layouts.
  • Protection features: Built-in safeguards against short circuit, overload and over-voltage help protect both the PSU and connected equipment.

Technical Specifications

  • Manufacturer: Mean Well
  • Model: MDR-40-5
  • Product type: DIN rail power supply
  • Rated output power: 40 W
  • Output voltage: 5 V DC
  • Output current: Up to 8 A
  • Input voltage range: Universal AC input (typically 85 – 264 V AC / 120 – 370 V DC)
  • Cooling method: Free air convection (fanless)
  • Mounting: DIN rail TS-35
  • Protection functions: Short circuit, overload, over-voltage

Compatibility

The Mean Well MDR-40-5 is suitable for industrial control panels, embedded systems, automation cabinets and electronic circuits that require reliable 5 V DC power in a compact footprint. Always ensure your load’s voltage and current requirements match this unit’s output before installation.

Applications

  • Industrial control panels and automation cabinets
  • Embedded controllers and low-power electronics
  • Sensors, signalling circuits and instrumentation systems
  • OEM and machine control applications requiring 5 V DC
  • Small automation and building systems

Supplied as a new, unused genuine Mean Well product suitable for professional electrical installations.

Frequently Asked Questions

What output does the Mean Well MDR-40-5 provide?

The MDR-40-5 delivers a regulated 5 V DC output at up to 8 A, providing a total rated power of 40 W suitable for industrial, automation and embedded applications.

What input voltage range does it support?

It supports a wide universal AC input range, making it suitable for installations across industrial, commercial and building environments.

Does the MDR-40-5 require a fan?

No. This unit uses fan-free convection cooling, enabling quiet and low-maintenance operation inside electrical cabinets.

What protections are built in?

It includes built-in protection against short circuit, overload and over-voltage to help safeguard both the power supply and connected equipment.

Where is this PSU commonly used?

It’s commonly installed in industrial panels, embedded systems and automation applications where compact and dependable 5 V DC power is required.

Common Search Terms

MDR-40-5, Mean Well MDR-40-5, 5 V 40 W DIN rail power supply, industrial 5 V PSU, automation DIN rail PSU.

More Information
Manufacturer Part Number MDR-40-5
Manufacturer Meanwell
Output Voltage 5VDC
Output Current 6.0A
Input Phases Single Phase
Alternative Product SKU MDR405
Write Your Own Review
You're reviewing:MDR-40-5 Power Supply 85-264VAC 1 Phase input, output 5 volts DC 6.0 Amps
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.