ABSOPULSE Electronics’ RWR-212-P200L fully encapsulated RIA12 railway quality DC-DC converters deliver up to 200W in rolling stock applications.

The converters offer input voltage surge-withstand capacity 3.5 times nominal input voltage for 20 milliseconds and meet the requirements of RIA12 with wide margins. RIA12 is the general specification for protection of traction and rolling stock equipment from transients and surges in DC control systems.

The units operate from a 24VDC, 36VDC, 48VDC, 72VDC, 96VDC, 110VDC or custom input voltage, with wide EN50155 input ranges. They deliver 12V, 24V, 48VDC or custom output voltage. Conversion efficiency is between 80 to 90%, depending on input/output configuration.

The RWR-212-P200L converters meet the requirements of EN50155 for electronic equipment used on railway rolling stock. They have heavy filtering on the input and output and comply with EN50121-3-2. The converters also meet EN61000-4-2 (ESD), EN61000-4-3 (RF Immunity), EN61000-4-4 (Fast Transients), and EN61000-4-6 (Conducted Immunity). Other protection features include 3000Vdc input-output isolation, reverse polarity protection, overload protection, thermal protection and current limiting.

The DC-DC converters are fully encapsulated with a thermally conductive MIL-grade silicon rubber compound with UL94V-0 flammability. Encapsulation ensures heat dissipation throughout the module as well as protection from high levels of shock and vibration. Conduction cooling via base plate to customer chassis or heat-sink enables operation over a -40°C to 70°C temperature range for full specification without derating.

ABSOPULSE Electronics is an original equipment manufacturer (OEM) of an extensive range of railway and industrial grade power conversion solutions. We specialise in fully custom solutions. All of our existing designs can also be modified to meet customer application requirements.

Please contact the company using the enquiry form on this page for further information on this and similar designs, for pricing and delivery.