2002 Square D Company ISO-FLEX Medium Voltage Controller. Model: 4. Class E2, Factory order number: 17-15018462-004. Catalog number: AG44D. 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. Power fuse size: 9R. Control voltage: 120 VAC. Last used with an 1100 hp compressor. Features include: front and rear access, and a NEMA 1 indoor, painted and gasketed enclosure. Approximate weight 12,932 lbs. Run hours: 28552.7. Overall dimensions: 6 ft. L x 3 ft. W x 8 ft. 8 in. H.(BG)(ACN303).