MEAN WELL RSD Series Railway DC-DC Converters
Product Features
The RSD series is designed for mission-critical environments. Featuring a compact, enclosed, and fanless design, these converters provide the reliability needed for rolling stock, automotive, and harsh industrial machinery.
- Railway Standard Compliance: Fully compliant with EN50155 and EN45545-2 standards for shock, vibration, and fire safety.
- Wide Input Range: Features a 4:1 wide input range, ensuring stable output even during significant DC bus fluctuations.
- Reinforced Isolation: Offers 4KVDC I/O isolation to ensure maximum safety between input and output circuits.
- Fanless Design: Conduction-cooled for operation in ambient temperatures up to 70°C, increasing reliability by eliminating maintenance-prone fans.
- Comprehensive Protection: Integrated protection suite including Short Circuit, Overload, Over Voltage, and Over Temperature protection.
Technical Specifications
| Parameter | Specification Detail |
|---|---|
| Isolation | 4KVDC I/O isolation |
| Operating Temp. | -40°C to +70°C (Refer to derating) |
| Shock/Vibration | Compliant with EN50155 (Railway) |
| Input Range | 4:1 Wide input range |
| Safety Standards | IEC 62368-1, EN 50155, EN 45545-2 |
Series Power Range Overview
| Model Series | Power Output | Core Characteristics |
|---|---|---|
| RSD-30 | 30W | Ultra-compact, 4:1 Input |
| RSD-60 | 60W | Slim design, 4:1 Input |
| RSD-100 | 100W | Slim design, 4:1 Input |
| RSD-150 | 150W | High density, 4:1 Input |
| RSD-200 | 200W | High reliability, 2:1 Input |
| RSD-300 | 300W | High power, 2:1 Input |
| RSD-500 | 500W | High power, 2:1 Input |
Typical Input Voltages: Available in ranges covering 9V-36V, 18V-72V, and 40V-160V, making them suitable for 12V, 24V, 48V, 72V, 96V, and 110V DC systems.
Application Suitability
The RSD series is specifically built for transport and heavy-duty industrial platforms.
| Application Area | Reasoning |
|---|---|
| Rolling Stock | Meets EN50155 standards for vibration/shock; provides stable power for passenger information systems. |
| Bus/Automotive | Handles battery voltage fluctuations during engine startup and varying load demands. |
| Industrial/Isolation | 4KVDC isolation prevents ground loops and protects sensitive PLC or sensor equipment. |
Selection Tip: When choosing an RSD model, match the "Input Voltage Range" (e.g., 18-72V) to your system’s nominal battery voltage. Always allow for a 20% power headroom above your total load consumption to ensure the longest lifespan of the unit.
