SUNHOUSE MSB Main Switchboard is a low-voltage power distribution panel designed for factories, buildings, industrial zones, infrastructure, and M&E/MEP projects. It receives, protects, and distributes main power to DB panels, control panels, motors, and loads. Rated up to 6300A, 690V AC, 50/60Hz, with 30/50/85kA short-time withstand, TT/IT/TNS/TNC grounding, and KEMA Full Type Test up to 4000A, Form 4B, IP43.