Power Adapter MEAN WELL DDR-120B-48

The MEAN WELL DDR-120B-48 is an ultra-slim industrial DC-DC DIN-rail converter designed for applications requiring a regulated 48 Vdc output from a wide input range of 16.8–33.6 Vdc. With a rated output of 48 V at 2.5 A (120 W) in a compact module, it fits standard DIN-rail installations and complies with RoHS requirements.

Advantages

Compact DIN-rail housing with a slim 32 mm width conserves panel space while delivering up to 120 W output. The converter accepts a wide input voltage range, allowing compatibility with various battery and intermediate bus systems. Its industrial design supports reliable performance in control cabinets and automation equipment.

Suitable for

• Industrial control cabinets and automation systems
• Telecom and network equipment requiring 48 V rails
• Battery-backed systems and DC bus converters
• Distributed power architectures in machinery and instruments

Key specifications

• Model: MEAN WELL DDR-120B-48 (MPN: DDR-120B-48)
• Input voltage: 16.8–33.6 Vdc
• Output: 48 Vdc, 2.5 A (120 W)
• Dimensions: 32 mm (W) × 102 mm (D) × 125.2 mm (H)
• Compliance: RoHS
• Packaging: sold in packs of 28 units

How to use

Mount the DDR-120B-48 on a standard DIN rail inside the control cabinet. Connect the input to a suitable 16.8–33.6 Vdc source observing correct polarity, and connect the 48 Vdc output to the load, ensuring the load does not exceed 2.5 A. Provide adequate ventilation and follow local wiring and safety regulations when integrating the converter into equipment.

Recommendations

For stable operation, avoid sustained operation at maximum rated current without verifying system thermal conditions. Use proper fusing on the input and output circuits and verify compatibility with upstream power sources and downstream loads before installation.