ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
1897 paper on 110-220 incandescent lamps
by dsk - 08/25/19 01:02 PM
Southwire Recalls Electrical Outlet Boxes
by Admin - 08/21/19 06:39 PM
Fuse blower plug?
by HotLine1 - 08/20/19 01:50 PM
100 year old Light Bulb
by HotLine1 - 08/20/19 01:26 PM
Forum Updates Coming Soon.
by Admin - 08/18/19 01:55 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 5 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Square D Type QO 40A Tandem? #214497 12/16/14 04:18 AM
Joined: Dec 2014
Posts: 4
onilozay Offline OP
New Member
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
Re: Square D Type QO 40A Tandem? [Re: onilozay] #214498 12/16/14 04:19 AM
Joined: Dec 2014
Posts: 4
onilozay Offline OP
New Member
Forgot to mention, I'm only installing 1 arc-fault breaker, which is creating this space issue.

Re: Square D Type QO 40A Tandem? [Re: onilozay] #214499 12/16/14 04:58 AM
Joined: Jul 2004
Posts: 9,383
G
gfretwell Offline
Member
I have never seen them over 20a. You are going to end up with a panel change or a sub panel IMHO.


Greg Fretwell
Re: Square D Type QO 40A Tandem? [Re: onilozay] #214501 12/16/14 10:39 AM
Joined: Apr 2002
Posts: 7,105
HotLine1 Offline
Member
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
Re: Square D Type QO 40A Tandem? [Re: onilozay] #214502 12/16/14 10:49 AM
Joined: Dec 2000
Posts: 4,280
electure Offline
Member
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.


Re: Square D Type QO 40A Tandem? [Re: onilozay] #214514 12/17/14 10:37 PM
Joined: Mar 2004
Posts: 742
B
BigB Offline
Member
You might have to install one of these next to the panel

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


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
HappyElectrician
HappyElectrician
Penn USA
Posts: 31
Joined: December 2011
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
GeneSF 6
Popular Topics(Views)
257,985 Are you busy
193,707 Re: Forum
183,316 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3