DC/DC converter for railway applications HVI 500R-FX series
chassis-mountedhigh-voltagewide input range

DC/DC converter for railway applications
DC/DC converter for railway applications
DC/DC converter for railway applications
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Electrical characteristics
for railway applications
Other characteristics
wide input range, switching, rugged, high MTBF, EN50155, convection-cooled

500 W

Input voltage

Max.: 975 V

Min.: 525 V

Output voltage

24 V, 36 V, 48 V, 110 V


This rugged, railway quality DC-DC converter utilizes field-proven technology to generate the required output power. It is a mature design with a track record in numerous applications. The converter is designed to meet EN50155 for electronic equipment used on railway rolling stock. It accepts an input voltage of 750Vdc (525V-975Vdc range). This is the traction voltage typically required for mass transit vehicles such as trams, metros and light rail, and for mining locomotives. An optional built-in redundancy diode allows for a number of units to be connected in parallel to achieve higher output power or N+1 redundancy. The output separation diode also makes the unit suitable for battery charging applications. Cooling is by conduction via baseplate. Additional cooling is achieved by natural convection through the cooling slots. All heat generating components are installed on aluminum heatsink blocks which are thermally connected to the base plate. This also provides exceptional mechanical ruggedness. Conformal coating provides protection against humidity and airborne contaminants. Full electronic protection, low component count, large design headroom and the exclusive use of components with established reliability contribute to a high MTBF. It is manufactured at our plant under strict quality control.


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