Three-phase control transformer designed according to VDE 0550, VDE 0550 Part 1, IEC/EN 61558-2-2, VDE0570 Part 2-2 as a safety transformer VDE 0570 Part 2-6 and as an isolating transformer VDE 0570 Part 2-4, UL 506, CSA 22.2 No.66, OVE. Nominal input voltage selectable from 50-950V +- 5%, nominal output voltage selectable from 18.5 - 1000 Nominal power 2.5 kVA (*/*) = placeholder for nominal input voltage / nominal output voltage