• Output Power: 300 W
• Output Voltage: 12 V DC
• Output Current: 25 A
• Input Voltage Range: 67.2 – 143 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-300F-12

The MEAN WELL RSD-300F-12 is a robust 300W DC-DC converter engineered specifically to meet the high-reliability standards of the railway industry. Featuring a 12V DC output and 25A current, this unit is built into a low-profile 1U chassis that allows for seamless integration into space-constrained server racks and control cabinets. A primary strength of this model is its 4000VDC input-to-output isolation, which provides an essential safety barrier for sensitive electronic equipment against high-voltage transients often found in transportation and heavy industrial environments.

Designed for longevity and performance under pressure, the RSD-300F-12 is fully compliant with the EN50155 railway standard and the EN45545-2 fire protection standard. It thrives in volatile settings thanks to its semi-potted design, which offers enhanced protection against moisture, dust, and mechanical vibrations up to 5G. With a high efficiency rating of 90% and a fanless architecture that relies on natural air convection, this power supply minimizes thermal loss and mechanical wear. This makes it a premier choice for rolling stock applications, telecommunications, and automated industrial systems requiring a highly stable and durable 12V power source.