CU-347 is an aluminum die-cast enclosure box designed for electronic component housing and protection. It features a body constructed from aluminum alloy ADC-12 with dimensions of 7.390 inches (A) by 4.703 inches (B) and an assembled height of 3.218 inches (C), providing substantial internal volume for component mounting. The enclosure is assembled with #6-32 flat head screws and includes a welded-on mounting bracket, with internal fillets of 0.062 inch radius and internal/external rounds of 0.125 inch radius for durability. Available in three finish options—natural, gray (suffix -G), and smooth black (suffix -B)—the CU-347 is suitable for industrial control systems, telecommunications equipment, and other applications requiring robust environmental protection and professional appearance.