Siemens P1E30MC250CT Panelboard Assembly Unit

Siemens P1E30MC250CT Panelboard Interior (assembly unit) is a 250-amp, 30-circuit panelboard interior designed for 480Y/277 VAC three-phase, four-wire power distribution. It is built for Siemens Type P1 panelboards with copper bus and supports BQD-type branch breakers (14K family) alongside a main device option MLKA3A, enabling flexible expansion in commercial or light-industrial settings. This interior is intended for unassembled panelboard assemblies and is compatible with enclosure options B38, S38B, and WP38; overall dimensions are roughly 38 inches tall by 20 inches wide by 5.75 inches deep, with a NEMA 1/3R/12 enclosure rating for indoor installations. Key specs include a 250 A rating, 30 circuits, copper bus, and 480Y/277 VAC operation, making it a focused choice for reliable 3-phase power distribution in modern electrical systems.