Split-Bolt Connector Kit Body Material Copper For Minimum Equal Wire Size 10 AWG For Maximum Equal Wire Size 4 AWG For Minimum Tap Wire Size 10 AWG For Maximum Tap Wire Size 4 AWG Standards CSA Certified UL 486D Connects Copper to Copper Wire Minimum Tap Conductor w/1 Maximum Main (AWG) 10 sol Pressure Bar Material Copper