Craigv
Senior Member
- Location
- Boyertown, PA, USA
408.38 says - Panelboards shall be mounted in cabinets, cutout boxes, or identified enclosures and shall be dead-front. No mentioning of listing being required.
Sorry but I don't find any other requirement for the cabinet to be listed, other than in 312.10(C) for non metallic cabinets.
That said each manufacturer typically has a cabinet made to fit their panelboard(s). I don't know if they are listed or not.
Loadcenters that come as all in one (cabinet and panelboard already assembled) typically are listed as a unit. But I don't think anything in NEC prevents you from taking the panelboard out and putting it in some other cabinet. You would still need to comply with 408.38 and have a "dead front" though.
Sorry, I miswrote "cabinets" in the first sentence where I meant to write "panelboards", the cabinet is not in question. It's typical for the panelboard interior and one or more dead fronts to be listed as an assembly, especially for snap-in breaker panels where the dead-front plays a role in retaining the breakers as well as protecting energized components.
In the context of this thread, a residential load center, I suspect there aren't many if any interiors that are listed without a dead-front.