Twist On Wire Connector Color Blue For Conductor Material Copper Maximum Operating Temperature 221 Degrees F Maximum Voltage 600 V Minimum Wire Combination (3) 18 AWG with (1) 12 AWG Maximum Wire Combination (3) 10 AWG with (1) 12 AWG Contact Finish Zinc Contact Material Steel UL 94 Flammability Rating V-2 Maximum Conductors 5 Standards CSA Certified 175604UL Listed E113650 Wire Connector Style Wing Compatible Installation Tool Model Number No 6