• Output Power: 300 W
• Output Voltage: 12 V DC
• Output Current: 25 A
• Input Voltage Range: 60 – 160 V DC
• Efficiency: 90 %
• Ripple & Noise: 120 mVp-p
• Input Current: 3.1 A @ 110 VDC
• No-load Power Consumption: < 1.5 W
• Operating Temperature: -40 °C to +70 °C
• Cooling: Free air convection
• Protection Functions: Short circuit, Overload, Over voltage, Over temperature, Input reverse polarity
• Overvoltage Category: OVC II
• Isolation Voltage: 4000 V DC between input and output
• Dimensions (H x W x D): 40 mm x 216 mm x 114 mm
• Weight: approx. 1000 g
• Safety & EMC Certificates: EN50155, IEC60571, EN45545-2, EAC, CE
• LED Indicator: Power On Indicator
• Manufacturer Warranty: 3 Years

Information about the MEAN WELL RSD-300E-12

The MEAN WELL RSD-300E-12 is a robust 300W DC-DC converter specifically designed for the high-reliability demands of railway vehicle technology and industrial automation. Operating within an input range of 60V to 160V DC, it is perfectly optimized for the 110V DC battery systems typically found in locomotives and passenger coaches. Its primary strength lies in the 4000VDC reinforced isolation, providing an essential safety barrier that protects sensitive 12V electronic equipment from high-voltage transients and surges common in heavy-duty transit environments.

Engineered with a low-profile 1U enclosed design, the RSD-300E-12 features a semi-potted internal construction that ensures maximum resistance against moisture, dust, and vibrations up to 5G. It complies with the rigorous EN50155 railway standard, guaranteeing consistent performance under mechanical stress and temperature fluctuations. The 90% peak efficiency and fanless architecture utilize natural air convection for cooling, which eliminates mechanical wear and significantly extends the service life. This makes it a maintenance-free, high-performance solution for rolling stock communication systems, signaling, and automated control units requiring a stable 12V DC source.