When using with Al/Cu (intermixed – dry locations) combinations with Copper Clad Aluminum (CCA) conductors, the aluminum conductor can be replaced with the Copper Clad Aluminum substituted in the combinations listed above. Home Improvement Stack Exchange Black paste inside wire nuts Ask Question Asked 4 years, 2 months ago Modified 2 years, 10 months ago Viewed 611 times 2 I have read that older houses may have aluminum wiring, and to splice copper to it there is a less than desirable method of purple wire nuts using corrosion inhibitor paste. Use only on Aluminum to Copper (Al/Cu) or Copper to Copper (Cu/Cu) wire combinations. Do not use on aluminum-to-aluminum connections. Twister® AL/CU Wire Connectors are designed as a one-use only connection.įor use only on copper-to-copper or aluminum-to-copper connections.
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The Twister® AL/CU is the only twist-on wire connector to be UL Listed and CSA Certified for aluminum-to-copper connections, as well as the only twist-on solution to comply with the National Electric Code Section #110-14(b). The live-action spring expands and contracts with aluminum wire to ensure a secure connection while the hexagonal head makes for quick and easy installation by hand or with a standard nut driver. Fit the appropriate size of wire nut over the wire ends and push into the wires while twisting the nut.
Hold the wires together, so their ends are aligned. Be sure to use the right hole in the stripper so that you don't cut into the metal of the wire. Filled with an anti-oxidant compound, the Twister® AL/CU easily twists on with swept-wings making a comfortable connection with improved conductivity and cooler connections. Strip about 1/2 to 3/4 inch of insulation from the end of each wire, using a wire stripper. The Twister® AL/CU Wire Connector is the only UL Listed aluminum-to-copper twist-on connector that prevents aluminum oxidation while providing a secure connection. The only twist-on for aluminum-to-copper connections. Section #110-14(b) for aluminum-to-copper connections UL Listed to 486C and CSA Certified to C22.2 #188 Standard switches and outlets aren’t usually an issue but GFCI outlets and dimmers will often not fit when using aluminum/copper connectors. Considering that most homes with aluminum wire also have smaller metal boxes, this can become an issue. Live-action, square-wire spring expands and contracts with aluminum wire Purple wirenuts take up slightly less than AlumiConn Lugs.
Purple wire nuts driver#
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