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CU/AL Twist-on Connector #192974 03/12/10 09:02 PM
Joined: Jul 2002
Posts: 103
jes Offline OP
Is anyone aware of any other mfg that has one of these products on the market other than the Ideal Twister?

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Re: CU/AL Twist-on Connector [Re: jes] #192986 03/13/10 06:23 PM
Joined: Apr 2002
Posts: 7,218
HotLine1 Offline
I did a quick google search.....nothing but "purple"

Re: CU/AL Twist-on Connector [Re: HotLine1] #192987 03/13/10 06:38 PM
Joined: May 2003
Posts: 1,155
dougwells Offline
T&B has one under the marrette brand ,it is only listed for canada though

Re: CU/AL Twist-on Connector [Re: dougwells] #192989 03/13/10 07:43 PM
Joined: Nov 2007
Posts: 763
KJay Offline
I donít know of any other UL listed twist-on type either, but I prefer the Alumicon connectors anyway. They allow more wire combinations and take up less room in the boxes.


Re: CU/AL Twist-on Connector [Re: jes] #192999 03/14/10 08:01 PM
Joined: Jul 2002
Posts: 103
jes Offline OP
How would you all splice a #8 AL STR to a #12 CU STR in a box?

Re: CU/AL Twist-on Connector [Re: jes] #193003 03/14/10 11:15 PM
Joined: Feb 2003
Posts: 939
frenchelectrican Offline
The other product I use from time to time if your box do have room I used Polairs connetor block they have one for small size but again just watch out the room in the box otherwise you will get it crowed pretty bad.

Jes., If you have 4X4 box it may be ok depending on the type of recetpale you are using and size of mudring you need to get it fit in.


Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)

Re: CU/AL Twist-on Connector [Re: frenchelectrican] #193010 03/15/10 06:23 PM
Joined: Jun 2004
Posts: 1,273
Tesla Offline
#8 Al = #10 Cu in terms of ampacity; 60 degree table.

What size C/B protects this circuit?

Last edited by Tesla; 03/15/10 06:27 PM.

Re: CU/AL Twist-on Connector [Re: Tesla] #193315 03/27/10 09:04 AM
Joined: Jul 2002
Posts: 103
jes Offline OP
Thanks for the replies.
There is no ampacity issue here, it's a 20A circuit. A number of mfgs make reducer/splicer devices that are set screw types.
Alumicon is not listed for larger than #10 AL.

Re: CU/AL Twist-on Connector [Re: jes] #193318 03/27/10 11:22 AM
Joined: Nov 2007
Posts: 763
KJay Offline
They do make several sizes of traditional split-bolt connectors listed for copper to aluminum connection.
I don't have any specifics on them as far as minimum and maximum run conductor sizes go though.


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