MEAN WELL RSD 300 DC-DC Converter, 12V dc/ 22.5A Output, 16.8 → 31.2 V dc Input, 270W, Rack Mount, +55°C Max

The Mean Well railway power supply RSD-300 series can satisfy the various requirements of vehicle applications. Complies with railway certificates (EN50155, IEC60571, IEC61373, EN50121-3-2) making them suitable for use in vehicles that are equipped with DC power source. This Power supply has a 5G anti-vibration ability and a wide range working temperature of -40 to +70℃, with protections for short circuit, overload, output over voltage, over temperature and input reverse polarity, it also has a built in current limiting circuit. The RSD-300 possess up to 91% of high efficiency, it is semi encapsulated for PCB protection, providing the basic function of anti moisture, anti dust and heat dissipation. The RSD-300 can be cooled without forced air and still work between -40% and +70% ambient temperature. This Mean Well power supply is suitable for applications of harsh environment and for all kinds of vehicles that are equipped with DC power source. The applications include railway, metro rapid transit system, subway, bus, leisure trailer, vessel and also security system, DC UPS system, and telecom equipments.

Comply with EN50155 (IEC60571) railway related regulations
2:1 wide input range
4000VDC input/output isolation
High efficiency up to 91%
Cooling by free air convection
Built-in constant current limiting circuit
Protections: Short circuit / Overload / Over voltage / Over temperature / Input reverse polarity (no damage)
using 105℃ long life electrolytic capacitors
LED indicator for power on
100% full load burn-in test
-40 to +70℃ wide operating range

Meets IEC60950-1(LVD)
Meets EN50155 / IEC60571 including IEC61373 for shock & vibration, EN50121-3-2 for EMC