The SCL6-L Copper Compression Lug Lug, Standard Barrel, Has Color-Coded Barrels Marked With Panduit and Specified Competitor Die Index Numbers For Proper Crimp Die Selection. An Inspection Window Aids to Visually Assure Full Conductor Insertion, and The Tin-Plate Material Helps to Inhibit Corrosion. Ul Listed and Csa Certified to 35 KV and Temperature Rated to 90°C.