Carlo Gavazzi Switching Power Supply AC/DC 960W 3-Phase, O/P: 48VDC 20.0A w/PFC, Parallel Connection, Screw Terminal, Din-Rail. The Switching power supplies SPD XX9603 series are suitable for those applications where the high DC power is required. Besides the PFC as standard, it also features the parallel connection with active current sharing on the high end versions.