Twist On Wire Connector, Color Blue/Gray, For Conductor Material Copper, Maximum Operating Temperature 221 Degrees F, Maximum Voltage 600 V, Minimum Wire Combination (1) 20 AWG with (1) 18 AWG, Maximum Wire Combination (3) 10 AWG, Contact Material Steel, UL 94 Flammability Rating V-2, Standards CE, CSA Certified, UL Listed, Wire Connector Style Wing, Insulation Material PBT, Maximum Single Wire Size 8 AWG, Minimum Single Wire Size 20 AWG, RoHS Compliant Yes, Package Quantity 10