Siemens K1718MC250C Panelboard Frame Assembly

The Siemens K1718MC250C Panelboard Frame Assembly is the interior mounting frame for Siemens panelboards, built to support a 9-slot section with copper bus configured for up to 18 circuits in a 250 A, 480Y/277 VAC, 3-Phase, 4-Wire distribution system. It serves as the structural mounting for Siemens circuit breakers and bus components inside a compatible panelboard enclosure, enabling organized power distribution in commercial and industrial electrical systems. This frame is intended for new installations, retrofits, and replacement of damaged interiors in commercial buildings, industrial facilities, manufacturing plants, and institutional electrical distribution systems, and is designed to fit Siemens lighting and distribution panelboards that require a 250 A, 18-circuit copper bus interior.