ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Do you count seconds?
by HotLine1 - 12/05/19 01:03 PM
"Esoteric" countries and their wiring practices?
by Texas_Ranger - 12/02/19 10:52 AM
Look at this mess...
by NORCAL - 11/15/19 10:21 PM
Fire source!
by sabrown - 11/07/19 08:39 AM
New in the Gallery:
FPE Breaker panel in germany
What is this for?
Who's Online Now
0 registered members (), 12 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Panelboard vs. Loadcenter #197886 12/26/10 02:01 PM
Joined: Jul 2004
Posts: 134
C
cgw Offline OP
Member
What do you think of using a load center in lieu of a regular panelboard? This may be a matter of opinion?
By loadcenter I mean a Square D QO or similar. By panelboard I mean a Square D NQOD or similar.
A specific situation - a 200 amp 42 space house panel in a small apartment building?

Work Gear for Electricians and the Trades
Re: Panelboard vs. Loadcenter [Re: cgw] #197888 12/26/10 03:48 PM
Joined: Jul 2004
Posts: 9,413
G
gfretwell Offline
Member
Are you just talking about the difference between using an integral main breaker or a back fed main in the rails?
The biggest difference is how many slots you have available after you put in the breaker. It will usually take up 8 of you slots.
The other option you have with the Square D NQOD is bolt in breakers. It seems to be available either way.


Greg Fretwell
Re: Panelboard vs. Loadcenter [Re: cgw] #197889 12/26/10 03:49 PM
Joined: Nov 2002
Posts: 788
W
wa2ise Offline
Member
That for the entire building? That would mean that the landlord will pay the power bill, I didn't think they did that anymore. Usually each tenant has their own meter and panel.

Re: Panelboard vs. Loadcenter [Re: wa2ise] #197891 12/26/10 05:05 PM
Joined: Nov 2007
Posts: 763
K
KJay Offline
Member
A load center would be less money. If the NQOD panelboards and bolt-on QOB cbís arenít specified in the plans, why you couldnít use something else?

Last edited by KJay; 12/26/10 05:05 PM.
Re: Panelboard vs. Loadcenter [Re: KJay] #197893 12/26/10 06:03 PM
Joined: Jul 2001
Posts: 599
J
JBD Offline
Member
As far as UL and the NEC care, this is no difference between a panelboard and a load center.

For your installation, the only major differences include:
Load centers are designed to fit inside of stud cavities so they are about 3-1/2" d and 14"w. Panelboards cabineets are usually 5-3/4"d and 20"w.

Loadcenters breakers are normally plug-in style while panelboards are more often, but not always (i.e. NQB), bolt-in style.


Re: Panelboard vs. Loadcenter [Re: JBD] #197896 12/26/10 08:20 PM
Joined: Aug 2001
Posts: 329
S
Steve Miller Offline
Member
The NQOD gives you more space (in the form of depth) for the stuff they'll call you to add later. The real question is who's paying for it? NQOD is a lot more, especially if you use the bolt ins.

Re: Panelboard vs. Loadcenter [Re: Steve Miller] #197897 12/26/10 09:39 PM
Joined: Apr 2003
Posts: 362
Obsaleet Offline
Member
Steve,
I prefer the panelboard in this situation. Unless you have space considerations. If you have a contract w/sq D and they are on it, they can be quite cost effective. I usally use the qo snap in cb but you could use the bolt on its a nice option. More room is better in my opinion.

Ob


Choose your customers, don't let them choose you.
Re: Panelboard vs. Loadcenter [Re: Obsaleet] #197901 12/27/10 11:34 AM
Joined: Jul 2004
Posts: 134
C
cgw Offline OP
Member
I'm just looking for reasons to not use a load center.
Usually I would use a panelboard unless there were just a few circuits or I had to fit it in a 2X4 stud wall.
In this case though it is for the house loads in a very small (10 unit) senior apartment building and is single phase. On the other hand it is pretty full (about 37 circuits).


Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

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

 

Member Spotlight
Tom
Tom
Shinnston, WV USA
Posts: 1,044
Joined: January 2001
Show All Member Profiles 
Top Posters(30 Days)
NORCAL 1
Popular Topics(Views)
261,133 Are you busy
196,269 Re: Forum
185,535 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3