Mean Well RSD 300 270W Isolated DC-DC Converter Rack Mount, Voltage in 16.8 → 31.2 V dc, Voltage out 12V dc,
- RS Stock No.:
- 7704077
- Mfr. Prt No.:
- RSD-300B-12
- Brand:
- Mean Well
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.
Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.
RS definition of RoHS Compliance:
- The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
- and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering
The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:
| Substance | Concentration |
| Lead | 0.1% |
| Mercury | 0.1% |
| PBB (Polybrominated Biphenyls) | 0.1% |
| PBDE ( Polybrominated Diphenyl Ethers) | 0.1% |
| Hexavalent Chromium | 0.1% |
| Cadmium | 0.01% |
| DEHP (Bis (2-Ethylhexl) phthalate) | 0.1% |
| BBP (Benzyl butyl phthalate) | 0.1% |
| DBP (Dibutyl phthalate) | 0.1% |
| DIBP (Diisobutyl phthalate) | 0.1% |
The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".
RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.
| RS stock number | 7704077 |
| Product description | Mean Well RSD 300 270W Isolated DC-DC Converter Rack Mount, Voltage in 16.8 → 31.2 V dc, Voltage out 12V dc, |
| Manufacturer / Brand | Mean Well |
| Manufacturer part number | RSD-300B-12 |
RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK
Statement of Conformity
This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
| RS stock number | 7704077 |
| Product description | Mean Well RSD 300 270W Isolated DC-DC Converter Rack Mount, Voltage in 16.8 → 31.2 V dc, Voltage out 12V dc, |
| Manufacturer / Brand | Mean Well |
| Manufacturer part number | RSD-300B-12 |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Nov 19, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Country of Origin: TW
Product Details
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
Specifications
| Attribute | Value |
| Brand | Mean Well |
| Mounting Type | Rack Mount |
| Input Voltage Range | 16.8 → 31.2 V dc |
| Depth | 40 mm |
| Minimum Temperature | -40 °C |
| Medical Approved | No |
| Railway Approved | Yes |
| Output Voltage | 12 V dc |
| Output Current | 22.5 A |
| Load Regulation | ±1 % |
| Isolation Voltage | 4 kV dc |
| Number of Outputs | 1 |
| Maximum Temperature | +55 °C |
| Input Voltage Nominal | 24 V dc |
| Series | RSD 300 |
| Package | Half Encapsulated |
| Length | 216 mm |
| Power Rating | 270 W |
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