Schneider Electric BX21D Load Center Enclosure

Schneider Electric's Square D BX21D Load Center Enclosure is a 125 A, 24-space indoor QO load center designed for single-phase 120/240 V service, ideal for residential and light commercial electrical distribution. It accepts standard Square D QO circuit breakers and is built for flush-mount installation inside an indoor panel box, delivering a compact footprint with organized branch-circuit packing. The enclosure is commonly used with the QOC24UF load center cover to create a finished front; QOC24UF is a 24-space, 125 A flush-mount cover compatible with QO load centers, with dimensions of 22.13 in L × 15.44 in W and a NEMA 1 rating for indoor use. Applications include service panels for homes, townhomes, and small businesses that require a 125 A main and up to 24 branch circuits, with standard QO breakers for reliable protection and easy circuit organization. The BX21D/QOC24UF pairing is a standard Square D configuration within the QO ecosystem, offering familiar mounting, wiring, and breaker compatibility for straightforward installation and maintenance.