ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

ECN Shout Chat
Top Posters(30 Days)
Admin 17
Recent Posts
Anyone hiring inspectors?
by sparky66wv. 03/26/17 12:22 PM
Old decora style outlets
by Admin. 03/25/17 11:40 AM
ESA Arc flash course
by TheShockDoctors. 03/24/17 10:15 AM
fuse rejectors
by HotLine1. 03/24/17 07:53 AM
Another Forum Update
by Admin. 03/22/17 03:04 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,509 Are you busy
166,213 Re: Forum
160,660 Need opinion
Who's Online Now
1 registered members (sparky66wv), 62 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#214497 - 12/16/14 04:18 AM Square D Type QO 40A Tandem?  
onilozay  Offline
New Member
Joined: Dec 2014
Posts: 4
Berkeley, CA
Hi all,

I'm wondering if Square D Type QO Breakers come in tandem form (skinny taking up 1 slot only) for 30 & 40A. I can't seem to find them. I do find tandems in 15 & 20A though.

Reason : Installing arc-fault in a panel filled with all tandems (15/20), there is no more room. There are 3 double pole breakers each which take up 2 spaces. They are 40, 40, 30A.

So I'm not adding additional circuits, just arc-faults don't come in tandem. I'm trying to replace a 40, 40 or 30 with a skinny tandem and free up some room...otherwise replace panel.

Much appreciated.


Work Gear for Electricians and the Trades

#214498 - 12/16/14 04:19 AM Re: Square D Type QO 40A Tandem? [Re: onilozay]  
onilozay  Offline
New Member
Joined: Dec 2014
Posts: 4
Berkeley, CA
Forgot to mention, I'm only installing 1 arc-fault breaker, which is creating this space issue.


#214499 - 12/16/14 04:58 AM Re: Square D Type QO 40A Tandem? [Re: onilozay]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,057
Estero,Fl,usa
I have never seen them over 20a. You are going to end up with a panel change or a sub panel IMHO.


Greg Fretwell

#214501 - 12/16/14 10:39 AM Re: Square D Type QO 40A Tandem? [Re: onilozay]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,799
Brick, NJ USA
That's not something that I have seen. You may want to check Schneider website; or contact a local supply house that is a Sq D distributor. Not a 'big box' store, but a supply house.



John

#214502 - 12/16/14 10:49 AM Re: Square D Type QO 40A Tandem? [Re: onilozay]  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,259
Fullerton, CA USA
Double pole breakers can't replaced by tandems.

The double poles pick up both legs.
Tandems don't.

2 of them side by side won't be any help either. Handle ties won't fix the issue of the common trip requirement.



#214514 - 12/17/14 10:37 PM Re: Square D Type QO 40A Tandem? [Re: onilozay]  
BigB  Offline
Member
Joined: Mar 2004
Posts: 719
Tucson, AZ USA
You might have to install one of these next to the panel

http://www.leviton.com/OA_HTML/SectionDisplay.jsp?section=62350&minisite=10251



Member Spotlight
HappyElectrician
HappyElectrician
Penn USA
Posts: 31
Joined: December 2011
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.012s Queries: 15 (0.002s) Memory: 0.7759 MB (Peak: 0.9242 MB) Zlib enabled. Server Time: 2017-03-26 17:05:52 UTC