The DC/DC converters have a wide input range of 14 to 160V, to serve a range of rolling-stock applications and high voltage battery-powered systems.

The single-output 40 and 60W quarter-brick converters accept all commonly used supply voltages, from nominal 24 to 110V DC. Other characteristics are basic isolation and a choice of regulated 5.0, 12, 15, 24, or 48V DC output. Sense and trim pins can be used to adjust the voltage by up to ±10%.

The high-efficiency DC/DC converters make battery energy go further while minimising thermal challenges, says the company. The RP40Q-RUW operates at full load without forced air cooling or derating, from -40 to 85°C (-40 to 68°C for the RP60Q-RUW. An optional heatsink extends the maximum temperature to 90°C and 77°C respectively.

For safety and reliability, the enclosures have threaded inserts for secure mounting to withstand high shock and vibration.

The converters are certified to EN 50155 and the EN 45545-2 railway-equipment fire-safety standard, and to EN 55032 and EN 55024 EMC and electromagnetic-immunity standards, EN 60950-1 and the incoming EN 62368-1 hazard-based safety standard.

The RP40Q-RUW and RP60Q-RUW are supplied with a three-year manufacturer’s warranty and are available now.