The Integra polycarbonate enclosure offering includes the Premium series of screw-cover wall-mount enclosures in addition to the Impact series of wall-mount, single-door enclosures. The Premium series adds wall-mount lift-off screw cover, hinged screw cover and single-door hinged cover with nonmetallic latch models to the Integra line. It features a T-rail mounting system for dead-front panels, swing-out panels and layering subpanels and for infinitely variable subpanel height. The enclosures weigh less than comparable steel or fiberglass enclosures and are engineered for durability and impact resistance, UV stability and chemical resistance. They have an operating temperature range of -40 to 265 °F.