Copper Compression Lug, Blank Tongue, 300 Kcmil, Color-coded barrels marked with Panduit and specified competitor die index numbers for proper crimp die selection, Inspection window to visually assure full conductor insertion, Tin-plated to inhibit corrosion, UL Recognized and CSA Certified to 35 KV and temperature rated to 90 Degrees Celsius when crimped with Panduit and specified competitor crimping tools and dies.