One-Hole Lug Compression Connector Barrel Size Long Color Code Gray Die Code 29 Tongue Angle Straight Tongue Width 0.69 in For Conductor Material Copper For Stud Size 1/2 in For Stranded Copper Wire Size - Minimum 4 AWG For Stranded Copper Wire Size - Maximum 4 AWG Inspection Hole Yes Material Copper Maximum Operating Temperature 300 Degrees F Maximum Voltage 600 V AC Termination Style Crimp Seam Style Seamless Standards CSA Certified UL Listed Number of Holes 1