Twist On Wire Connector Color Tan For Conductor Material Copper Maximum Operating Temperature 221 Degrees F Maximum Voltage 600 V Minimum Wire Combination (3) 22 AWG Maximum Wire Combination (3) 10 AWG Contact Material Steel UL 94 Flammability Rating V-2 Standards CSA Certified UL Listed Wire Connector Style Wing Insulation Material Polypropylene Maximum Single Wire Size 10 AWG Minimum Single Wire Size 22 AWG Overall Height 1.12 in Overall Width 0.53 in