Power Adapter MEAN WELL DDR-120A-48

The MEAN WELL DDR-120A-48 is an ultra-slim industrial DC-DC DIN-rail converter designed to deliver a stable 48V DC output from a 9–18V DC input. With a rated output power of 120W and a single output capable of 48V at 2.1A, this compact unit (32 mm × 102 mm × 125.2 mm) is RoHS compliant and intended for installations where space-saving, reliable power conversion on a DIN rail is required.

Advantages

The DDR-120A-48 provides efficient DC-DC conversion in a narrow housing suitable for DIN-rail mounting, offering a constant 48V output and built-in protections typical of industrial converters. Its compact footprint and compliance with RoHS make it appropriate for equipment racks and control cabinets where space and regulatory conformity matter.

Suitable for

• DIN-rail mounted control cabinets and automation panels
• Industrial equipment requiring 48V DC from 9–18V DC sources
• Telecommunications and networking devices with 48V input requirements
• Bulk installations and system integrators (sold in packs)

Key specifications

• Model: MEAN WELL DDR-120A-48 (DDR-120A-48)
• Input voltage: 9–18 V DC
• Output: 48 V DC, 2.1 A (single output)
• Rated power: 120 W
• Dimensions (W × D × H): 32 mm × 102 mm × 125.2 mm
• Mounting: DIN-rail
• RoHS: compliant
• Pack quantity: 28 units per pack
• Brand: mean well
• MPN: DDR-120A-48
• EAN: 4021087051040

How to use

Mount the converter on a standard DIN rail inside the equipment cabinet. Connect a suitable 9–18 V DC supply to the input terminals following the polarity markings, and connect the 48 V DC output to the load, ensuring the load current does not exceed 2.1 A. Verify wiring is secure and observe recommended clearance for ventilation. Follow all applicable electrical safety standards during installation and commissioning.

Recommendations

Use the DDR-120A-48 within the specified input range (9–18 V DC) and rated output current. Install in environments within the manufacturer's specified temperature and humidity ranges, provide adequate ventilation, and protect against overcurrent and short-circuit conditions using appropriate upstream fusing or protection devices.