50 Feet of 6/3 Nonmetallic-Sheathed Cable. 600 Volt. Copper Conductors. Color-Coded Jacket. (Conductor Construction) ASTM B-3 and B-8 Federal Specification A-A-59544 National Electrical Code, NFPA 70 REACH/RoHS Compliant NM-B cable is manufactured as 2, 3, or 4 conductor cable, with a bare ground wire. Copper conductors are annealed (soft)copper. Stranded conductors are compressed stranded. Conductor insulation is 90°C-rated polyvinyl chloride (PVC), nylon jacketed. ASTM B-3 and B-8 50 Feet of 6/3 NM-B National Electrical Code, NFPA 70 REACH/RoHS Compliant