Universal, space-saving lightning current arrester with a width of 19 mm and RJ45 connection technology for lightning protection equipotential bonding. Protection of applications in structured cabling according to Class D up to 100 MHz, e.g. Industrial Ethernet, data distributors, digital camera systems, Power over Ethernet (IEEE 802.3 compliant up to 4PPoE) and generally Ethernet-based interfaces. Protection of all wire pairs through powerful gas discharge arresters. Fully shielded adapter version with RJ45 sockets for DIN rail mounting. With additional screw connection on the housing side for optional earth connection.