Universal, space-saving combination arrester with a width of 19 mm and RJ45 connection technology with status display for easy maintenance. Protection of applications in structured cabling according to class EA up to 500 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 and protective diodes between the signal wires and wire pairs. Fully shielded adapter version with RJ45 sockets for DIN rail mounting. With additional screw connection on the housing side for optional earth connection.