Press-On Lug, Copper, 3/0 - 4/0 AWGPermaground Copper Grounding C Crimp, Main Conductor Range 4 0 3 0 Sol, Tap Range 4 0 3 0 Sol, UL, CSA Manufactured from high strength copper alloy, Clearly marked with wire size and die index for easy identification and tooling recommendation, Suitable for use in circuits rated at 35 KV or less; proper high voltage spacing and insulation techniques must be used, Rated to 90 C, UL listed and CSA Certified for grounding and bonding, UL 467 Listed for