Ferrule Contact Finish Tin Contact Material Copper Ferrule Diameter 0.35 in Ferrule Material Copper Insertion Length 3/4 in Insulation Color Red Insulation Material Polypropylene Maximum Operating Temperature 221 Degrees F Minimum Wire Size 2 AWG Maximum Wire Size 2 AWG Termination Style Crimp Standards CSA C22.2 No 291-14 DIN 46228 Part 4 Barrel Diameter 0.49 in Barrel Finish Tin Plated Barrel Length 0.55 in Barrel Material Copper Compatible Grainger Part Number 376U18