• Output Power: 302.4 W
• Output Voltage: 48 V DC
• Output Current: 6.3 A
• Input Voltage Range: 16.8 – 40 V DC
• Efficiency: 91 %
• Ripple & Noise: 200 mVp-p
• Input Current: 13.5 A @ 24 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-300B-48

The MEAN WELL RSD-300B-48 is a high-performance 300W DC-DC converter meticulously engineered for railway systems and industrial telecommunication networks operating on 24V nominal battery power. With its wide 16.8V to 40V DC input range, this unit provides a highly stable 48V output, making it an essential component for powering remote PoE equipment, telecommunication hubs, and high-voltage control circuits. A standout characteristic of this model is its ultra-low profile 1U height, which allows it to be integrated into slimline enclosures and high-density electronic racks where vertical clearance is extremely limited.

Beyond its compact form factor, the RSD-300B-48 is built for uncompromising reliability in harsh environments. It features a semi-potted design that shields the internal electronics from moisture, dust, and mechanical vibrations up to 5G, fulfilling the rigorous EN50155 railway standard. The 91% peak efficiency minimizes thermal loss, allowing the device to operate effectively using natural air convection without the need for mechanical cooling fans. With 4000VDC reinforced isolation and comprehensive protective circuitry, this converter ensures a safe, durable, and maintenance-free 48V power source for mission-critical infrastructure.