The Electrical Contractor Network

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

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Industrail Control Panel bonding per 409.108
by sparkyinak
Yesterday at 03:17 PM
Calling all Non-US members!! (Non-US only)
by aussie240
12/07/16 02:39 AM
Photo Upload Tutorial
by DanK
12/06/16 11:35 PM
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
New in the Gallery:
12.5A through 0.75mm≤ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
Texas_Ranger 8
sparkyinak 8
Trumpy 6
Who's Online
0 registered (), 192 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#197886 - 12/26/10 11:01 AM Panelboard vs. Loadcenter
cgw Offline
Member

Registered: 07/29/04
Posts: 133
Loc: Rochester NY
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?

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#197888 - 12/26/10 12:48 PM Re: Panelboard vs. Loadcenter [Re: cgw]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
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

Top
#197889 - 12/26/10 12:49 PM Re: Panelboard vs. Loadcenter [Re: cgw]
wa2ise Offline
Member

Registered: 11/29/02
Posts: 771
Loc: Oradell NJ USA
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.

Top
#197891 - 12/26/10 02:05 PM Re: Panelboard vs. Loadcenter [Re: wa2ise]
KJay Offline
Member

Registered: 11/27/07
Posts: 763
Loc: MA, USA
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?


Edited by KJay (12/26/10 02:05 PM)

Top
#197893 - 12/26/10 03:03 PM Re: Panelboard vs. Loadcenter [Re: KJay]
JBD Offline
Member

Registered: 07/12/01
Posts: 599
Loc: WI, USA
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.

Top
#197896 - 12/26/10 05:20 PM Re: Panelboard vs. Loadcenter [Re: JBD]
Steve Miller Offline
Member

Registered: 08/30/01
Posts: 322
Loc: Loudoun Cty, VA
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.

Top
#197897 - 12/26/10 06:39 PM Re: Panelboard vs. Loadcenter [Re: Steve Miller]
Obsaleet Offline
Member

Registered: 04/05/03
Posts: 361
Loc: Pa
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.

Top
#197901 - 12/27/10 08:34 AM Re: Panelboard vs. Loadcenter [Re: Obsaleet]
cgw Offline
Member

Registered: 07/29/04
Posts: 133
Loc: Rochester NY
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).

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals