Manufacturers
Mean well MDR-40-12 40 Watt Power Supply 12V 3.3A output
MPN: MDR-40-12
Alt. SKU: MDR4012
Special Price
£20.50
£17.08
Regular Price
£29.28
Why Choose the Mean Well MDR-40-12 DIN Rail Power Supply?
The Mean Well MDR-40-12 is a compact 40W DIN rail power supply designed for small automation, control, and instrumentation panels. Delivering a reliable 12V DC output at 2.5A, it features a universal AC input, high efficiency, robust protection mechanisms, and a slim housing—making it ideal for space-constrained industrial and building automation environments.
Key Takeaways
- Output: 12V DC at 2.5A (30W)
- Input Voltage: 85–264V AC / 120–370V DC
- High efficiency up to 84%
- 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-40-12
- What is the output voltage and current of the MDR-40-12?
- What input voltages does it support?
- What protection features are included?
- How is the unit cooled?
- How is it mounted?
Mean Well MDR-40-12 Overview
The MDR-40-12 is part of Mean Well’s ultra-slim MDR series, supplying dependable 12V power at 2.5A for compact automation, PLC, and sensor systems. Its small form factor, global input compatibility, and built-in protections make it an excellent choice for engineers seeking performance and safety in tight spaces and demanding environments.
Speed & Safety Benefits
- Quick installation: Ultra-slim DIN rail mounting saves space and simplifies 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-40-12
- Output: 12V DC at 2.5A (30W)
- Input Voltage: 85–264V AC / 120–370V DC
- High efficiency up to 84%
- 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-40-12 provides a 12V DC output at 2.5A, 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-40-12 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-40-12 DIN Rail Power Supply for reliable, compact, and efficient 12V power in your automation and industrial control projects.
