A panelboard is a type of enclosure for overcurrent protection devices and the busses and connections that provide power to these devices and their associated circuits. According to the NEC? (National Electric Code?), panelboards are used to control light, heat, or power circuits; are placed in a cabinet or cutout box; mounted in or against a wall; and accessible only from the front. Graybar has a great selection of panelboards, panelboard accessories, and panelboard covers.
Categories of Panelboards
Top Sellers

Square D (Schneider Electric)
NQNF Panelboard Enclosure Surface Cover, NEMA 1, Hinged, 20 x 56 in.
Mfr # NC56SHR
97212106

Square D (Schneider Electric)
Panelboard Enclosure, NEMA 1, Blank End Walls, 20 W x 74 H x 5-3/4 in. D
Mfr # MH74BE
89041013

Square D (Schneider Electric)
Panelboard Interior Number Strips, Odd/Even (1-102)
Mfr # NQ102OE
25111222