The use of lightning barriers in two-core wire systems is commonplace. These surge protection devices are used from telecommunication cables through bus systems up to measurement and control technology. Surge protection technology allows flexible protection for all kinds of applications. All the devices have both a low protection level and a high arresting capacity. Other features of this device are : - suitable for DC and AC voltage systems - With Maximum Continuous Operating Voltage (Uc=37V AC , 53V DC) - 5-year warranty - VDE test mark - Surge protection for use in measurement and control technology - With installation-friendly, screwless connection terminals - In space-saving 17.5 mm grid - Universal use on any 35 mm hat profile rail Bornika is the exclusive agent of OBO Bettermann in the fields of consultation, sales and distribution of power industry products including two-core systems , FLD family .