Boxes in aluminium alloy with cable gland n.1 M25 (11-16mm) - single pole cables. Cable section 2x(1x4) 2x(1x6) mm² or 2x(1x10). Terminal strip 2x16mm². Cable glands n.4 M20 (8÷12mm). Protection by means of fuse 4A D01 gG. Technical Specifications: - insulation piercing terminals; - lid bottom sealing gaskets and cables with IP66 protection degree; - stainless steel captive screws M5 for the lid; - airtight captive screws IP66 for use control; - M5 external earth terminal; - line protection fuses.