MEAN WELL DDR Series DIN Rail DC-DC Converters
Product Features
The DDR series is a family of enclosed DC-DC converters built for DIN rail mounting. They are optimized for applications requiring voltage stabilization and galvanic isolation in harsh industrial or transportation environments.
- DIN Rail Design: Compact, "slim" form factor (TS-35/7.5 or 15) ideal for installation in space-constrained control cabinets and industrial racks.
- Wide Input Range: Features 4:1 wide input voltage ranges, allowing the unit to handle significant fluctuations in the DC bus.
- Reinforced Isolation: Up to 4KVDC I/O isolation protects against ground loops and enhances system safety.
- Fanless Operation: Completely silent, convection-cooled design that ensures reliability without the risk of fan mechanical failure.
- Operating Temperature: Wide temperature range capabilities (-40°C to +85°C for many models), suitable for extreme outdoor or railway environments.
Technical Specifications
| Parameter | Specification Detail |
|---|---|
| Input Range | 4:1 Wide input range |
| Isolation | 4KVDC I/O isolation |
| Operating Temp. | -40°C to +85°C (Model dependent) |
| Protections | Short circuit / Overload / Over voltage / Over temperature |
| Safety Standards | IEC 62368-1, EN 50155 (Railway), EN 45545-2 |
Series Power Range Overview
| Model Series | Rated Power | Key Characteristic |
|---|---|---|
| DDR-15 | 15W | Ultra-slim design |
| DDR-30 | 30W | Space-saving DIN rail |
| DDR-60 | 60W | High efficiency |
| DDR-120 | 120W | Power density optimization |
| DDR-240 | 240W | High power for automation |
| DDR-480 | 480W | Industrial grade/Robust |
Applications: Railway systems (on-board electronics), heavy industrial automation, surveillance networks, and telecommunication DC power buses.
Railway & Industrial Compliance
The DDR series is widely recognized for meeting stringent standards required in transportation and heavy industry.
| Standard | Focus Area |
|---|---|
| EN 50155 | Electronic equipment used on rolling stock (Railway). |
| EN 45545-2 | Fire protection requirements for railway vehicles. |
| IEC 62368-1 | General safety for information technology and industrial equipment. |
Selection Tip: Match your battery/bus voltage (e.g., 24V, 48V, or 110V) to the unit's 4:1 input range. Ensure that the DIN rail space is sufficient, as higher wattage models (DDR-240/480) will require more horizontal rail width.
