Grounding Busbar Material Copper Description/Special Features Busbar Pre-assembled with Brackets and Insulators For Use With Telecom/Data Center Grounding Bar Holes and Size (12) 1/4 in (3) 3/8 in Grounding Bar Length 20 in Grounding Bar Thickness 1/4 in Grounding Bar Width 2 in Ground Wire Included No Includes Panduit GB2B0312TPI-1 Telecom Grounding Busbar Standards BICSI/TIA-607-C cULus