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Mean Well RSD 300 271.2W Isolated DC-DC Converter Rack Mount, Voltage in 16.8 → 31.2 V dc, Voltage out 24V dc

22 In stock for delivery within 4 working days
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RS Stock No.:
Mfr. Part No.:
Mean Well
COO (Country of Origin):
unitsPer unit
1 - 4SGD190.30
5 - 9SGD180.78
10 - 24SGD171.25
25 - 49SGD161.74
50 +SGD152.24

Mean Well 300W Railway Certified Regulated Isolated DC-DC Converter - RSD 300 Se

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

Mean Well Enclosed DC to DC Converters

Output Voltage24V dc
Input Voltage Range16.8 → 31.2 V dc
Input Voltage Nominal24 V dc
Isolation Voltage4kV dc
Power Rating271.2W
Output Current11.3A
Mounting TypeRack Mount
Number of Outputs1
Medical ApprovedNo
Railway ApprovedYes
PackageHalf Encapsulated
Load Regulation±1%
Minimum Temperature-40°C
Maximum Temperature+55°C
SeriesRSD 300