Built to take high-voltage inputs
Designed for transportation, telecom, base station and other applications, the VKD1000 series converters are chassis-mounted, and enclosed in a 9.76 × 7.17 × 2.28-inch shielded metal case with a built-in heat sink. They have input voltage ranges of 80-180, 200-400 and 400-800V dc, and output voltages of 12, 15, 24, 28 and 48V dc at up to 1,000W of power. They come with protections against under-voltage lockout, over current, over voltage and over temperature. They are made to work in -25 to 85C environments, but also come in models that work up to -55 to 85C. They cost $490 per unit.