1/C CU 600 V RW90 SIMpull. Copper Conductor, 600 V, 90 °C MAX - 40 °C MIN, 1/0 AWG to 1000 KCMIL. Sizes 1/0 AWG and larger are Sunlight Resistant and in all colors. Single copper conductor with low temperature, moisture resisting XLPE (cross linked polyethylene) insulation. Standard sizes 1/0 AWG and larger utilize SIMpull® technology, are Sunlight Resistant in all colors and packaging. This product meets the current RoHS requirements. No lead is added or used in manufacturing.