Morris Products 23163 High Temperature Wire Connector, P3 Type, , 22 - 14 Awg Wire Combinations, 600V - 1000V fixtures & signs Max Voltage (Pack of 100) High Temperature Wire Connectors - Our High Temp Wire Connectors are perfect for high-wattage situations. Black Thermoplastic shell specially designed to withstand the extreme heat build-up commonly found in high-wattage light fixture and signs Rated for 302F (150C) UL/CSA Listed