Aimed at nominal 72V and 110Vdc inputs, the 500W RMD500-EW power supply series from Recom is intended for baseplate-cooled railway use, and similar 300W and 150W rolling stock and trackside PSUs are in the pipeline. Inputs can span 43 to 154Vdc (4:1), and peak at 170V. Output is 24V at up to 500W even with the ...

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