| Description de l'article | Lightning current arrester combined with fine surge protection for 2/3-CORE signalling lines, signal ground separated from protective earth, installation at the entry into building close to the protected equipment / 48 V DC, max. 1 A, pluggable module, floating / D1, C2 EN 61643-21+A1, A2:2013, IEC 61643-21+A1, A2:2012 / pluggable module, coupling impedance (r - resistance), line separated from protective earth via GDT, coarse and fine surge protection of 2/3-CORE telecommunication, data and other lines, installation at the boundary of LPZ 0 and LPZ 1 zones at the line entry into building, for protection of communication interfaces of i&c, electronic security and fire detection systems, etc. (Mainly for RS-485 interfaces) against impact of surge voltage, coarse and fine surge protection (core - core, GND) in differential mode and coarse surge protection in common mode (line - PE) |