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