PN-1337-MB is a NEMA 4X plastic enclosure box designed for external mounting applications with an integrated mounting bracket. The enclosure is constructed from UV-stabilized polycarbonate material (UL94-HB rated) with a light gray body and cover, featuring a service temperature range of -40°C to +120°C. The box includes four M4 threaded brass inserts for cover mounting and accepts M4 or #8 pan head screws for external mounting, with a silicone sponge gasket for environmental sealing. Designed to meet NEMA 1, 2, 4, 4X, 12, 13 and IEC529-IP66 standards, this enclosure is ideal for outdoor and harsh industrial environments requiring reliable protection and corrosion resistance.