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Active standard | Published: 01/02/2026
UNE-EN IEC 61643-21:2026
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods (Endorsed by Asociación Espanola de Normalización in February of 2026.)
Available languages: English
Available design: electronic design (pdf), Print design
from 3 174.80 CZK
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Detail information
Designation: UNE-EN IEC 61643-21:2026
Publication date: 01/02/2026
Pages: 94
Country: Spanish technical standard
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