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#215337 - 04/10/15 08:33 AM Aluminum to copper
LuisF Offline
New Member

Registered: 04/04/15
Posts: 4
Loc: Washington
Best inexpensive connectors to pig tail aluminum to copper?

2014 / 2011 NEC & Related Books and Study Guides
#215339 - 04/10/15 09:40 AM Re: Aluminum to copper [Re: LuisF]
gfretwell Offline


Registered: 07/20/04
Posts: 9026
Loc: Estero,Fl,usa
I think there are only 3 for small conductors.

Ideal #65
King Alumicon
Copalum system.

None are really cheap.

In larger wire sizes, most lugs and breakers are dual rated but there are exceptions in equipment.
Greg Fretwell

#215340 - 04/10/15 09:40 AM Re: Aluminum to copper [Re: LuisF]
renosteinke Offline
Cat Servant

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
It's kind of like the "Highlander;" there's only one. No need to bother worrying about 'best' or 'inexpensive.'

Alumnicon, by King.

The purple wire nuts are not really suitable for long-term use. The Canadian products are not approved for use in the USA.

Keep in mind that many boxes -especially in trailers- do not have enough room in them for both the device and the connectors.

Also be warned that many aluminum wiring jobs use an undersized (#16) ground, one that is crimped where it enters the box. As a result, the ground will often break when you remove the device, and you have nothing left to connect a new pigtail to.


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