mstrlucky74
Senior Member
- Location
- NJ
Being told these are exactly the same. is that true?
What is the difference between QO load centers and NQ panelboards?
A QO load center is a panelboard. It is tested in accordance with UL67, the same as a NQ panelboard . Some of the functional differences may include:
NQ can be factory assembled to custom specifications. QO is merchandised only.
NQ enclosures are normally 20`` W x 5.75`` D and generally galvanized steel boxes . QO enclosures are normally 14.25``W x 3.75``D with grey painted boxes .
NQ enclosures are available in more NEMA types than QO, which is offered in NEMA 1 and NEMA 3R enclosures only.
NQ trims are monoflat with no exposed screws and a recessed handle/lock . QO trims show the mounting screws and use a raised door latch with optional lock .
NQ accepts plug-on and bolt-on breakers. QO accepts plug-on breakers only .
Lastly NQ panels are generally considered to be for commercial , institutional and industrial applications . The QO load center is primarily targeted for the residential , light commercial and light industrial marketplaces .
Here's what Schneider says on...
AFAIK,
Loadcenters never come with an EGC bus. Must be purchased separately.
Loadcenters always come with cover/deadfront, cabinet and panelboard in the box.
Being told these are exactly the same. is that true?
Square D loadcenters are most commonly shipped without the front 'in the box', except the ones sold at the big-box stores
If there is a "G" in the part number, that Square D loadcenter is shipped with a factory installed ground. I believe ground bars are standard in most of the QO line that are sold as main lugs only, as these are likely to be 'sub-panels'
Square D loadcenters are most commonly shipped without the front 'in the box', except the ones sold at the big-box stores
If there is a "G" in the part number, that Square D loadcenter is shipped with a factory installed ground. I believe ground bars are standard in most of the QO line that are sold as main lugs only, as these are likely to be 'sub-panels'
Well they failed to say what "QO" & "NQ" stand for!
QO stands for Quick Open.
I couldn't find anything on NQ.
If you are looking for a generic term, you could call it a power distribution enclosure. I don't think anyone has proposed a generic term in the NEC.