FR 311 is a range of products manufactured by Legrand, a French company that specializes in electrical and digital infrastructure solutions. The FR 311 range includes a variety of wiring accessories, including power connectors, switches, junction boxes, and control boxes. All these products are designed to be used in medium- and high-voltage applications, and are certified to meet the requirements of IEC standards 61439. The range is ideal for industrial, commercial, and domestic applications where safety and robust performance are required. All FR 311 products are made from high-quality materials and are designed to guarantee a long-lasting and trouble-free installation.