STN EN IEC 61643-21 (341392)

Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods

STANDARD published on 1.5.2026

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The information about the standard:

Designation standards: STN EN IEC 61643-21
Classification mark: 341392
Catalog number: 142434
Publication date standards: 1.5.2026
Approximate weight : 60 g (0.13 lbs)
Country: Slovak technical standard
Category: Technical standards STN