Twist On Wire Connector, Color Blue/Gray, For Conductor Material Copper, Maximum Operating Temperature 221 Degrees F, Maximum Voltage 600 V, Minimum Wire Combination (4) 14 AWG, Maximum Wire Combination (2) 6 AWG, Contact Material Steel, UL 94 Flammability Rating V-2, Maximum Conductors 6, Standards CSA Certified, UL Listed, Wire Connector Style Standard, Insulation Material Polypropylene/ Elastomer, Maximum Single Wire Size 6 AWG, Minimum Single Wire Size 14 AWG