The DC-DC Converter provides clean 24 Vdc power suitable for 24V solenoids, relays and other electrical systems. For operation under the most harsh and demanding conditions, the IP67 rated unit is encapsulated in an enclosure to protect against moisture, shock and vibration. Power from a battery or other source of 110Vdc, 96 Vdc or 72 Vdc is converted to a 24 Vdc regulated output. The railway power supply manages heat dissipation and requires no forced cooling systems. Short circuit and reverse polarity protection are provided. The unit is designed with extremely rugged surge and transient suppression in addition to sustained over/under voltage protection. With a nameplate rating of 240 Watts of output power, the DC-DC Converter features proprietary dual-phase topology for a high efficiency.