Railway dc-dc converters deliver pure convection cooling

ABSOPULSE LTH-65R-F3TH series of heavy-duty, railway quality dc-dc converters with pure convection cooling deliver up to 200W output power. Designed to float charge hold-up batteries for on-train electrical equipment, the units are also suitable for a range of other transportation and industrial applications. Devices operate from a 12Vdc (10.5-16V) input and deliver 12Vdc, 24Vdc, 48Vdc or the corresponding float voltages. Other input values and output voltages up to 125Vdc are available. An optional built-in redundancy diode allows for paralleling and N+1 operation or back-up battery connection. An output fail alarm (Form C) is also available on request. http://www.absopulse.com