Innovations in manufacturing have made possible these extra-large plastic enclosures. Gasketed for use in harsh locations, they meet NEMA 1, 2, 4, 4x and IEC 529-IP66 requirements. This high level of protection makes them useful in wet, dirty and/or corrosive environments. They are UL listed for Type 4 and 4x. See the difference between IP and NEMA ratings. Covers latch securely. Versions with transparent covers are available. Plastic enclosures, unlike enclosures made of metal, are suitable for outdoor RF signal and IoT applications.