US Patent 7394167 Express power load center

A power load center comprises a first terminal block adapted to receive multiple high voltage DC power feeder pairs, a protector block adapted to receive the multiple high voltage DC power pairs from the first terminal block and to aggregate them, a DC to DC voltage converter adapted to receive the aggregate feeder pairs and convert them to −48V DC, and a power tap bus or second terminal block adapted to receive the −48V DC power and to output it as multiple −48V DC power taps.