Materials Holder moulded in natural coloured V2 self-extinguishing polypropylene. Insulating base moulded in CTI 600 non-arc producing (in accordance with IEC 112) 0,75 mm VO natural coloured selfextinguishing polyamide 6 (UL-94). Terminal for backbone connection in brass (UNI EN 12165). Terminals for backbone connection in brass (UNI EN 12165). Plates in AISI 304 stainless steel for fastening shunt cable. Hooking clamp fuse Ot 58 (UNI 4892 - EN 1652) with elastic spring. Base and cover moulded in polyamide resin reinforced with VO self-extinguishing glass fiber (UL-94). Characteristics Quadripolar terminal board with 3 ways for pole. Max connection capacity 2 (two) 16 sq mm cables (input/output). Tightening conductors on dorsal with screws in stainless steel AISI 304 (hexagonal recessed). Rated voltage 450 V; max current 63 A. Max. Connection n ° 2 wires of 4 sqmm. Max. Connection n° 2 wires of 4 sqmm. Tightening screws on platelet-derived stainless steel X2CrNi 18.9 with hexagon socket head cap. Disconnectable fuse holder for cartridge fuses dim. 8.5 x 31.5 - 380 V - max. 10 A. Rated voltage 450 V. For recessed installation on posts with a diameter of at least 101 mm (measured on a level with the housing) with 45 x 186 mm housing with half-round ends. Class II holder (double insulation) in accordance with CEI 64-8/4. Protection degree IP 43 protection degree around cover perimeter, IP23B in cable input zone (in accordance with CEI EN 60529 standards), IK 08 (according to CEI EN 62262).