The PTK Series of NEMA 4X rated boxes delivers high impact-resistance by being made of polycarbonate plastic reinforced with 10% glass fibers. Clear polycarbonate lids are available as an option. The fiberglass boxes are rated IP67 (TUV) and meet NEMA 1, 2, 4, 4x and 6 specifications. Suitable for outdoor or indoor use, they are ideal for PCB enclosures, junction boxes and other applications in the electrical and electronic industries. Exceptional value in a variety of sizes.