RS PRO Splice Connector, Yellow, Insulated 12 → 10 AWG, 4 → 6 mm²
3mm, Diameter: 5.RS PRO Splice Connector, Yellow, Insulated 12 → 10 AWG, 4 → 6 mm², Minimum Wire Size (mm²): 4mm², Maximum Wire Size (mm²): 6mm², Overall Length: 27.3mm, Minimum Wire Size (AWG): 12AWG, Maximum Wire Size (AWG): 10AWG, Insulation Material: Nylon, Contact Material: Copper.