Bare Copper Cable, Concentric-Lay/Combination Unilay Stranded Additional Information, Grounds;Jumpers;Uninsulated Hook UPS Application, Copper Conductor Material, 4/0 AWG Conductor Size, 480 A Current Rating, Made in USA, +25 °C Maximum Operating Temperature, 19 - Strands, 0.528 in Outside Diameter, Carton Package Type, ASTM Standards Met, 653/1000 lb/ft Weight