Ring Terminal Insulation Color Bare Insulation Coverage None Insulation Material None Maximum Operating Temperature 302 Degrees F Maximum Voltage 2 000 V Minimum Wire Size 4 AWG Maximum Wire Size 4 AWG Termination Style Crimp Tongue Width 0.68 in Contact Finish Tin Contact Material Copper Standards CSA C22.2 No 65 UL 486A UL 486B Barrel Inside Diameter 0.29 in Barrel Outside Diameter 0.39 in Barrel Size Standard Barrel Style Serrated Barrel