Ideal Electrical Twister Al/Cu Wire Connector, 30-1765S, Bag of 10

The wire nut performed as advertised!! Easy to use and threaded easily onto wire end connectors. A little pricy, but a little cheaper on Amazon!! HIGHLY RECOMMENDED!!!

For those who have electrical that is outdated (Aluminum), this product comes to the rescue. For the value, it is well built, seems durable, as some existing wiring before we purchased our home had these wire nuts installed, which means they last a long time. It was really easy to use across my home for the wiring that wasn't pigtailed with copper, and now I can breathe easy knowing that my wiring is safe in my home. One note, ensure that you don't have excess copper when pigtailing at the end, same as aluminum, or else the wire nut will not work and fail to twist.

No reason these need to cost this much

These are great for homes that have old aluminum wiring. The twister have penatrox inside, so no mess!

When it’s not feasible to replace aluminum wiring, these work well and are an approved method for “pigtail-ing” copper wires onto the aluminum wiring. This enables use of a wider selection of modern receptacles and switches that are only compatible with copper. Very useful to have.

Connecting Copper wire to Aluminum wire is NEVER a good idea, especially in residential wiring. When two different materials are place together {connected}, there is always that chance of corrosion or oxidation that can occur. I have seen something simply as a lamp assy aluminum wire corroded and burn in an electrical box inside the building's wall. Scary? Yes. Even though, these wire nuts might be spendy, they are the only twist type that is UL Listed for CU / AL connection. One important 'thing' follow their instructions carefully and DO NOT attempt to reuse this wire nut.

They are larger than normal wire nuts, which can make it extremely tight and at times impossible to install in the existing boxes in older homes, which in many cases the boxes in the homes that aluminum wire was used, the boxes are very small and larger boxes or extension boxes have to be used. But the product itself is very good.

By code, most municipalities require these on all aluminum wire to copper wire connections. The material in the device prevents the oxidation of the aluminum wire, significantly reducing fire risk at these wire junctions. Very easy to use, allowing for a rapid clean connection.

Worked for what needed. A bit pricey-$6 a connector.

Was having issues with burnthrough on the connector. I knew there were issues with the dissimilar wire types. This is the solution. Trim enough wire and resolve the issue. If you are in doubt, if one wire is copper colored and the other is silver colored, you need these.