Low voltage distribution box outdoor use requires IP65 or NEMA 4X ratings, corrosion-resistant materials, and proper sealing for lasting weather protection. We are committed to working closely with our customers, providing them with exceptional and offering an advanced and service extensive. In extreme conditions such as high salt spray or strong acids and alkalis, the physicochemical stability of the casing material is fundamental to maintaining the long-term operation of power systems. Environmental requirements for metal tolerance vary greatly, making material traceability and. That's why we adhere to the rigorous standards set forth by ISO 12944: Paints and varnishes – Corrosion protection of steel structures by protective paint systems. What is ISO 12944? First published in 1998, ISO 12944 is an internationally recognized standard developed by a collaborative effort of. Distribution boxes protect our electrical systems like bodyguards shield VIPs. When they fail, everything goes dark. That. durability, ease of installation and low maintenance. Compared to standard galvanized steel conduit in corrosive environments, type 304 stainless steel offers up to five times the lifespan, while type 316 offers up to eight times the lifespan.