nm staples

[Dennis Alwon]

Derating still applies.... Read the bag... More here.

This is what I found from your link

If 5 to 8 # 14-2 w/g NM cables are installed in a SI-1 cable stacker, ampacity Derating should be considered.

I generally don't use more than 4 in a stacker. I can see where using more may be an issue.

 

[e57]

This is what I found from your link

If 5 to 8 # 14-2 w/g NM cables are installed in a SI-1 cable stacker, ampacity Derating should be considered.

I generally don't use more than 4 in a stacker. I can see where using more may be an issue.

What a number of people think is that stackers do not requre derating - which IMO the manufacturers are purposely mis-leading about. If you have more than ONE cable in one - it needs to be derated - but this really wont affect the capacity of the conductors until 9 CCC's... At four 14/2's you don't really have an issue... At five 14/2's you would potentially have 10 CCC's and the capacity of the conductor is effected by derating more than 70%. (That is if the use of the connected load could reach that de-rated amount...) But something to note is that these stackers are rated for only 4ea - 12/2's, or 2ea. - 14 or 12/3's... :roll: WHY? I can not say.... They still fit in there, and derating if applied is not an issue for say 3 12/3's - then why this limitation? Same for 12/2's it allows 4 - but 8 will fit easy....

Anyway - I often preffer Caddy's CJ-6 - which allows 6 of either cable above in a wide configuration. But some inspectors locally frown on them used with NM - for some reason....

 

[480sparky]

where did that info come from?

334.80 .