Three Phase Autotransformer from Italian company BBR Elettromeccanica, model A3FC. Specifications: * Power: 15 kVA (also mentioned as 10.5 kVA depending on connection) * Frequency: 60 Hz * Three Phase * Available voltages: 220 / 380 / 450 / 480 Volts * Protection: IP20 * Vector group: Y-N * Cooling: A-N (natural air cooling)