... ,400,660V 2.ABB, Schneider, GE parts optional Low Voltage distribution, switch cabinetsFixed Switchgear,Protective Control Cabinet 1.380,400,660V 2 ... in the power generation and distribution system with three-phase AC frequency 50(60)Hz, 380V(400)(600) and rated current ... usersIII. Basic Parameters Rated voltage of main circuit (V)AC 380(400)(660)Rated voltage of ancillary circuit (V)AC 220 380(400) DC ...