Technical Information & Details for the MEAN WELL DDR-240D-48 Power Supply
- Output Power: 240 W
- Output Voltage: 48 V DC
- Output Current: 5 A
- Input Voltage Range: 67.2 – 154 V DC (2:1 wide input)
- Efficiency: up to 92 %
- Ripple & Noise: ≤ 100 mVp-p
- Peak Load Capability: 150 % (360 W for 3 s)
- Parallel Operation: Current sharing up to 960 W (3+1)
- Operating Temperature: −40 °C to +70 °C
- Cooling: Fanless free air convection
- Protections: Short circuit, overload, overvoltage, overtemperature, reverse polarity, undervoltage
- Withstand Voltage: 4000 V DC I/O isolation (reinforced isolation)
- Dimensions (H x W x D): 125.2 mm x 40 mm x 113.5 mm
- Weight: approx. 760 g
- Certifications & Standards: BS EN/EN50155, BS EN/EN45545-2, IEC/UL 62368-1, EAC
- Additional Functions: DC OK relay contact, remote ON-OFF control
- Manufacturer Warranty: 3 years
Information about the MEAN WELL DDR-240D-48
Tailored specifically for high-voltage DC distribution frameworks and heavy-duty rolling stock, the MEAN WELL DDR-240D-48 unit provides steady 240 W power performance encapsulated in a space-saving 40 mm DIN rail profile. Accepting an expansive 2:1 input span of 67.2 – 154 V DC, this converter efficiently manages high bus feeds while generating a clean 48V output rail. Complete with full compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standards, a robust thermal window of −40 °C to +70 °C, and reinforced 4000 V DC isolation, it guarantees exceptional operational stability for mission-critical infrastructure.