" JN4B00008S3 (Sub Main Distribution Panel, 400A, 1240mm Length) The JN4B00008S3 is a large-scale power distribution panel, engineered for heavy-duty electrical networks. Category: Outdoor Wall-Mounted MCCB Panel Board Dimensions (Depth × Width × Length): 200 × 690 × 1240 mm Current Rating: Up to 400A Short Circuit Capacity: 50kA Material: High-strength steel with UV-resistant coating Application: Suitable for hospitals, high-rise buildings, and industrial automation systems. Provides enhanced safety and performance for MCCBs."