combination arrestor , with a visual representation of performance , with remote signalling . On the base of standard, the gap between surge arrestor Class B and Class C installed, must not be less than 10 meters. Observe the distance, the problems that are created due to make the boards for fixing it, "Combination arrestor B+C" can be used. Some Class B arrestors have certain technology, that Class C arrestor can be installed immediately next to it. Lightning current arresting capacity 7 kA (10/350) per pole and up to 25 kA (10/350) in total . with visual function display . with remote signalling . Bornika is the exclusive agent of OBO Bettermann in the fields of consultation, sales and distribution of power industry products including Combination Class B+C, Type I+II.