WDR-120-12 Power Supply 1ph and 3ph in input, output 12 volts DC 10 Amps
MPN: WDR-120-12
Alt. SKU: WDR12012

Why Choose the Mean Well WDR-120-12 DIN Rail Power Supply?
The Mean Well WDR-120-12 is a compact, wide input range 120W DIN rail power supply designed for industrial automation, process control, and panel-building applications. With a reliable 12V DC output at 10A and a broad 180–550V AC input range, this model offers high efficiency, robust protection, and flexible installation—making it an ideal choice for global projects and demanding environments.
Key Takeaways
- Output: 12V DC at 10A (120W)
- Wide input voltage: 180–550V AC (single/three-phase) / 254–780V DC
- High efficiency up to 86.5%
- Protections: Short circuit, overload, over voltage, over temperature
- Cooling by free air convection
- DIN rail mountable (TS35/7.5 or TS35/15)
- Slim metal case: 40mm width
- Operating temperature: -30°C to +70°C
- Compliance: UL508, EN61000-6-2, EN61000-6-4, TUV EN62368-1, CE
Frequently Asked Questions About the Mean Well WDR-120-12
- What is the output voltage and current of the WDR-120-12?
- What type of input voltage is supported?
- What protection features are included?
- How is the unit cooled?
- What installation options are available?
Mean Well WDR-120-12 Overview
The WDR-120-12 is part of Mean Well’s WDR series, offering true wide input range DIN rail power supplies for modern industrial systems. Its robust 12V DC output at 10A, slim profile, and comprehensive protection make it ideal for challenging industrial, building automation, and global panel applications—especially where stable operation across a wide voltage range is essential.
Speed & Safety Benefits
- Quick installation: Slim DIN rail design streamlines panel wiring and saves space
- Enhanced safety: Full suite of protections safeguards both equipment and users
- Global flexibility: Wide input voltage range supports international applications and fluctuating mains conditions
Key Features of the Mean Well WDR-120-12
- Output: 12V DC at 10A (120W)
- Wide input voltage: 180–550V AC (single/three-phase) / 254–780V DC
- High efficiency up to 86.5%
- Protections: Short circuit, overload, over voltage, over temperature
- Cooling by free air convection
- DIN rail mountable (TS35/7.5 or TS35/15)
- Slim metal case: 40mm width
- Operating temperature: -30°C to +70°C
- Compliance: UL508, EN61000-6-2, EN61000-6-4, TUV EN62368-1, CE
The WDR-120-12 provides a stable 12V DC output at 10A, delivering a total power of 120W.
This unit supports a wide 180–550V AC input (single or three-phase) and 254–780V DC, suitable for global and industrial power systems.
It features protection against short circuit, overload, over voltage, and over temperature for safe and reliable operation.
The WDR-120-12 is cooled by free air convection, with no fans required for silent, maintenance-free operation.
It is designed for DIN rail mounting (TS35/7.5 or TS35/15), ensuring fast, secure, and flexible installation in control panels and enclosures.
Choose the Mean Well WDR-120-12 DIN Rail Power Supply for wide input flexibility, global compliance, and reliable 12V power in demanding industrial and automation projects.