Why Choose the Mean Well WDR-120-12 DIN Rail Power Supply?
The Mean Well WDR-120-12 is a compact and reliable AC/DC DIN-rail switching power supply designed to provide stable 12 V DC power for industrial automation, control systems and electrical equipment. As part of the Mean Well WDR series, it is engineered for efficient operation with both single-phase and three-phase input capability, making it suitable for a wide range of industrial installations.
This power supply provides regulated DC output with built-in protection features including overload, over-voltage and short-circuit protection. Its slim DIN-rail mounting design allows easy integration into electrical cabinets, automation panels and industrial control systems where dependable 12 V DC power is required.
With a rated output power of 120 W and a 12 V DC output at 10 A, the WDR-120-12 is suitable for powering PLCs, sensors, controllers and other low-voltage industrial electronics. Its ability to accept both single-phase and three-phase AC input provides additional installation flexibility in industrial environments.
Key Advantages
Reliable 120 W DIN-rail mounted switching power supply.
12 V DC output with 10 A rated current.
Supports both single-phase and three-phase AC input.
Compact design for efficient control cabinet installation.
Integrated overload, over-voltage and short-circuit protection.
Suitable for industrial automation and control applications.
Key Features
Mean Well WDR series DIN-rail power supply.
120 W rated output power.
12 V DC regulated output voltage.
10 A maximum output current.
Single-phase and three-phase AC input capability.
DIN-rail mounting design.
LED status indication.
Built-in overload protection.
Short-circuit protection.
Over-voltage protection.
Reliable DC Power for Industrial Automation
The Mean Well WDR-120-12 provides efficient conversion from AC mains power into regulated 12 V DC output for industrial control and automation equipment. Stable DC power helps ensure reliable operation of connected PLCs, sensors and electronic devices.
Designed for DIN-rail installation, the WDR series offers a practical solution for electrical cabinets requiring compact dimensions, flexible input capability and dependable power performance in industrial environments.
Typical Applications
Industrial automation control panels.
PLC and controller power supplies.
Machine control systems.
Sensors and instrumentation equipment.
Building automation systems.
Electrical distribution cabinets.
Technical Specifications
Manufacturer
Mean Well
Series
WDR
Model
WDR-120-12
Product type
DIN-rail AC/DC switching power supply
Rated output power
120 W
Output voltage
12 V DC
Output current
10 A
Input voltage
Single-phase and three-phase AC input
Mounting type
DIN rail mounting
Protection functions
Overload, over-voltage and short-circuit protection
Cooling
Free air convection
LED indicator
DC OK status indication
Frequently Asked Questions
What is the Mean Well WDR-120-12 used for?
The WDR-120-12 is used to provide regulated 12 V DC power for industrial automation systems, controllers and electronic equipment.
What output voltage does this power supply provide?
The unit provides a regulated 12 V DC output.
How much power can the WDR-120-12 deliver?
The power supply provides 120 W output power with a maximum output current of 10 A.
Can the WDR-120-12 operate with three-phase input?
Yes, the WDR-120-12 supports both single-phase and three-phase AC input operation.
How is the WDR-120-12 installed?
The power supply is designed for DIN-rail mounting inside electrical control panels.
Trusted by Industrial Automation Professionals
Mean Well WDR series power supplies are widely used in industrial automation and electrical control systems to provide reliable, efficient and protected DC power.
Manufacturer
Mean Well
Series
WDR
Model
WDR-120-12
Product type
DIN-rail AC/DC switching power supply
Rated output power
120 W
Output voltage
12 V DC
Output current
10 A
Input voltage
Single-phase and three-phase AC input
Mounting type
DIN rail mounting
Protection functions
Overload, over-voltage and short-circuit protection
Cooling
Free air convection
LED indicator
DC OK status indication
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...