Rittal 7979721 Manufacturer description: DK surge voltage protector module, for terminal unit protection (type 3) with alarm contact, for fastening to the enclosure frame, rated power: 3.7 kW, rated current: 16 A, 1~, connection type: CEE connector/coupling, connection cable / length: H05VV F3G2.5 / 1 m, extruded aluminium section, anodised, RAL 9005, incl. assembly parts, DK surge voltage protector module. Surge voltage protector module, for terminal unit protection (type 3) with alarm contact.