Wire Joint, Nylon Insulated, 3 No. 14 - 4 No. 12 American Wire Gauge (AWG), Large barrel, designed to accommodate from one to seven wires with just one crimp. Accommodates multiple wire sizes in varying combinations. Barrel of terminal internally beveled to provide quick and easy wire insertion. UL Flammability UL 94V-2/HB, maximum insulation temperature 221 degrees Fahrenheit (105 degrees Celsius). UL and CSA rated up to 600 Volts per UL 486C.