Weatherproofing is key for outdoor battery cabinets. The cabinet must protect batteries from bad weather to keep them working longer. The table below explains common IP ratings and their. Most industrial off-grid solar power sytems, such as those used in the oil & gas patch and in traffic control systems, use a battery or multiple batteries that need a place to live, sheltered from the elements and kept dry and secure. International Protection (IP) standards are used to designate the protective capacity of an electrical enclosure. Continue. SWA ENERGY outdoor cabinets are engineered for harsh environments and long-term outdoor operation. With IP54/IP55 protection, anti-corrosion design, and intelligent temperature control, they are ideal for telecom base stations, remote power supply, and containerized microgrids. Our outdoor cabinets. The IP (Ingress Protection) rating is an international standard defined by the International Electrotechnical Commission (IEC) to measure the degree of protection provided by enclosures against solid particles and liquids. The code labels an enclosure's IP followed by two numbers; the first digit shows the extent to which equipment is protected against particles, and the second digit.