Pick an IP grade of at least IP55 for outdoor cabinets. Think about humidity and temperature when picking cabinet materials. In coastal areas, I rely on NEMA 4X-rated enclosures to withstand salty air and moisture. The Ingress Protection (IP) rating determines an enclosure's ability to resist solids and liquids, while NEMA (National Electrical Manufacturers Association) standards specify resistance to corrosion, rain, and other. Furthermore, businesses using appropriate waterproof server cabinets report 98% uptime even in the harshest conditions. Understanding IP and NEMA Ratings for Waterproof Protection First and foremost, understanding protection ratings is crucial for selecting the right waterproof server cabinet.