2002 Square D Company ISO-FLEX Medium Voltage Controller. Model: 4. Class E2, Factory Order No. 17-15018462-006, Category no. RG44D, 3phase. Nominal system voltage: 4000 / 4160 V, rated maximum voltage 5kv, continuous current 360 amp, central voltage 120 vac volts. Impulse withstand: 60 Kv, Horizontal bus rating: 1200A. (2) Motorpact 1250 hp autotransformers, RVNR style, bottom outgoing, and PFCC. (2) Motorpact 800 hp autotransformers, FVNR style, bottom outgoing and PFCC. (2) 600 amp HVL, 400e fuses, bottom incoming. Power supply: Control Voltage: 120 VAC, 60 Hz, 3 phase. Features include: front and rear access, and a NEMA 1 indoor, painted and gasketed enclosure. Approximate weight 12,932 lbs. Inside enclosure dimensions: 5 ft. 11 in. L. x 2 ft. 7 in. W. x 8 ft. 3 in. H. Overall dimensions: 6 ft. L x 2 ft. 7 in. W. x 8 ft. 3-1/2 in H.(H11)(ACN303).