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