DIN EN 61643-21 VDE 0845-3-1:2010-03
Low voltage surge protective devices
Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods
(IEC 61643-21:2000 + Corrigendum:2001 + A1:2008, modified); German version EN 61643-21:2001 + A1:2009
Class/Status:
Standard,
withdrawn
Released: 2010-03
VDE Art. No.: 0845013