Power Adapter MEAN WELL DDR-120D-12

The MEAN WELL DDR-120D-12 is an ultra-slim DIN-rail mounted DC-DC converter that delivers 120 W of power. It accepts a wide input range of 67.2–154 V DC and provides a single, regulated 12 V DC output at up to 10 A. Designed for industrial applications, the unit is RoHS compliant and features compact dimensions (32 mm × 102 mm × 125.2 mm) for straightforward integration into control cabinets and automation systems.

Advantages

The converter offers a wide input voltage window suitable for battery-backed and variable-voltage systems, a stable 12 V output with up to 10 A current capacity, and a space-saving, ultra-slim profile for DIN-rail mounting. Compliance with RoHS supports environmentally conscious installations, while the 120 W power rating covers many industrial loads requiring uninterrupted 12 V power.

Suitable for

• Rail-mounted industrial control cabinets
• Battery-backed power and renewable energy interfaces
• Automation equipment and PLCs requiring 12 V supply
• Telecom or networking modules with DC input

Key specifications

• Model: MEAN WELL DDR-120D-12 (MPN: DDR-120D-12, EAN: 4021087050975)
• Input voltage: 67.2–154 V DC
• Output: 12 V DC, 10 A (single output)
• Output power: 120 W
• Mounting: DIN-rail
• Dimensions (W×D×H): 32 mm × 102 mm × 125.2 mm
• Certification: RoHS compliant

How to use

Mount the DDR-120D-12 on a standard DIN rail inside a suitably rated enclosure. Connect the DC input within the specified 67.2–154 V range, observing correct polarity and local wiring standards. Connect the 12 V DC output to the load, ensuring the combined current draw does not exceed 10 A. Provide appropriate fusing or circuit protection on both input and output as required by the installation. Allow for adequate ventilation and follow MEAN WELL installation notes for wiring and safety.

Recommendations

Use appropriate input protection (fuse or circuit breaker) and verify grounding and polarity before applying power. Do not exceed the 10 A output current and avoid operating the unit outside the stated input voltage range to ensure reliable performance and longevity.