While IP55 enclosures resist water jets effectively, they are not designed for immersion or heavy washdown applications—for those conditions, IP66 or higher ratings are recommended. IP66 represents an advanced industrial protection level, suitable for demanding outdoor and washdown. . In this article, we explain what an IP55 rating is, how protection against dust and water is achieved, and which design features allow an IP55 enclosure to withstand outdoor and industrial environments. We will also clarify when IP55 is sufficient — and in which cases you may need to consider a. . When choosing the best IP rating for an Outdoor Electrical Enclosure, it's essential to consider the specific environment and intended use of the Electrical Enclosure. Saipwell offers reliable Electrical Enclosure solutions for every requirement, ensuring your equipment is protected from weather. . Nema Enclosures Manufacturing Corporation uses the IEC's standardized International (or Ingress) Protection Code system for measuring enclosures capabilities. Learn about materials, installation, and more. Sometimes called the International Protection rating, it is defined by the International Electrotechnical Commission (IEC) under the international standard EN 60529 (British. .