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Mean well MDR-40-24 40 Watt Power Supply 24V 1.7A output

MPN: MDR-40-24

Alt. SKU: MDR4024

£29.28 £24.40

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Why Choose the Mean Well MDR-40-24 40 W DIN Rail Power Supply?

The Mean Well MDR-40-24 is a professional-grade 40 W DIN rail power supply engineered to provide a stable 24 V DC output at 1.67 A, ideal for industrial control panels, automation equipment, sensors, signalling devices and embedded electronics. With a universal AC/DC input range, robust protections and reliable fanless convection cooling, the MDR-40-24 delivers consistent performance in compact enclosures and demanding commercial environments.

Designed for engineers, panel builders and maintenance professionals, this unit combines Mean Well’s trusted reliability with a slim DIN rail form factor that helps maximise usable panel space and simplify installation workflows.

Product Code: Mean Well MDR-40-24

Key Benefits

  • Stable 24 V output: Provides regulated 24 V DC at up to 1.67 A for industrial automation and control applications.
  • Universal AC/DC input: Compatible with 85–264 V AC or 120–370 V DC for global installation flexibility.
  • Fanless convection cooling: Quiet, maintenance-free performance with improved reliability.
  • Space-saving DIN rail design: Slim profile supports efficient panel layouts and organised wiring.
  • Built-in protections: Includes short circuit, overload and overvoltage safeguards for enhanced safety.
  • Low no-load power draw: Efficient operation with minimal idle consumption.

Technical Specifications

  • Manufacturer: Mean Well
  • Model: MDR-40-24
  • Output Voltage: 24 V DC
  • Output Current: 1.67 A
  • Rated Output Power: 40 W
  • 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: < 0.75 W
  • Isolation Voltage: 3000 VAC input-to-output
  • Dimensions: ~40 × 90 × 100 mm
  • Operating Temperature: -20 °C to +70 °C (with derating)
  • Approvals: UL508, TUV/EN62368-1, CE, CB, cURus (typical series approvals)

Compatibility

The Mean Well MDR-40-24 is designed for control panels and automation systems where a compact 24 V DC DIN rail power supply is required. Always confirm that output voltage, current and power match your application’s needs before installation.

Applications

  • Industrial control cabinets and automation panels
  • PLC power distribution and sensor networks
  • Signal conditioning and instrumentation systems
  • Embedded controllers and access control modules
  • Building automation and low-power devices
  • Maintenance replacement and system upgrades

Supplied as a new, unused genuine Mean Well power supply, ideal for professional electrical installations and industrial automation environments.

Frequently Asked Questions

What output voltage and current does the MDR-40-24 provide?

The Mean Well MDR-40-24 delivers a regulated 24 V DC output at 1.67 A, providing 40 W of power for control panels and automation applications.

What input voltage ranges does it support?

This power supply supports a wide range of inputs — 85–264 V AC or 120–370 V DC — making it suitable for installations in diverse industrial environments.

Does the MDR-40-24 require additional cooling?

No. It uses fanless convection cooling, eliminating the need for fans and reducing noise and maintenance demands.

What protections are included?

It includes built-in short circuit, overload and overvoltage protections to safeguard both the PSU and connected equipment.

Is the MDR-40-24 suitable for continuous industrial use?

Yes. With industry approvals and Mean Well’s dependable build quality, this power supply is suitable for continuous operation in industrial and commercial environments.

Common Search Terms

MDR-40-24, Mean Well MDR-40-24, 24 V 40 W DIN rail power supply, industrial DIN rail PSU, automation power supply, MDR4024 installation.

More Information
Manufacturer Part Number MDR-40-24
Barcode 4711287422022
Manufacturer Meanwell
Output Voltage 24VDC
Output Current 1.7A
Input Phases Single Phase
Alternative Product SKU MDR4024
Write Your Own Review
You're reviewing:Mean well MDR-40-24 40 Watt Power Supply 24V 1.7A output
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.