These High impact resistance Gray Polycarbonate (PC) resin 10% glass fiber filled molded Hinged cover enclosures rated IP67 (TUV) and meet NEMA 1, 2, 4, 4x and 6 specifications. UV stabilized UL94-V0 flammability rating; suggested service temperature -40C to 120C. Ideal for PCB enclosures, junction boxes and other applications in the electrical and electronic industries.