Dimensions (HxWxD mm): 250×200×150, 300×250×150, 300×300×200, 400×300×150, 400×300×200, 400×400×120, 500×400×200, 600×400×200, 600×500×150, 600×500×200, 700×500×200, 800×600×200, 800×600×250, 800×600×300, 1000×800×250, 1200×1000×300 Need a custom enclosure?Dimensions (HxWxD mm): 250×200×150, 300×250×150, 300×300×200, 400×300×150, 400×300×200, 400×400×120, 500×400×200, 600×400×200, 600×500×150, 600×500×200, 700×500×200, 800×600×200, 800×600×250, 800×600×300, 1000×800×250, 1200×1000×300 Need a custom enclosure?The SUS304 stainless steel rainproof distribution box is a heavy-duty outdoor electrical enclosure purpose-built for exterior power distribution applications. Fabricated from authentic SUS304 stainless steel with a sloped rainproof roof design, it delivers reliable dustproof, waterproof and. Our outdoor rainproof distribution boxes are primarily manufactured using high-quality 201 or 304 Stainless Steel for superior durability. com — we're. The Merlin Gerin Stainless Steel Rainproof Distribution Box SM Series is an ideal solution for protecting electrical systems in outdoor and harsh environments. Crafted from high-quality stainless steel, this box offers superior corrosion resistance, ensuring.