"JN4B00004S3 (Sub Main Distribution Panel, 400A, 1090mm Length) The JN4B00004S3 is a compact sub-main distribution panel designed for high-performance power distribution in commercial and industrial applications. Category: Outdoor Wall-Mounted MCCB Panel Board Dimensions (Depth × Width × Length): 200 × 690 × 1090 mm Current Rating: Up to 400A Adjustable Range: Fixed Busbar Rating Short Circuit Capacity: 36kA Voltage Rating: 230/400V AC IP Rating: IP54 (Outdoor-rated, resistant to dust and water splashes) Material: Heavy-duty galvanized steel with corrosion-resistant powder coating Mounting Type: Wall-mounted for space-efficient installation Application: Ideal for commercial buildings, industrial sites, and distribution substations. Ensures stable and structured power distribution for MCCBs up to 400A. Provides secure protection against overloads and short circuits. "