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Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
STANDARD published on 1.8.2002
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Designation standards: STN EN 61643-21
Classification mark: 341392
Catalog number: 20601
Publication date standards: 1.8.2002
SKU: NS-530850
Approximate weight : 51 g (0.11 lbs)
Country: Slovak technical standard
Category: Technical standards STN
Fuses and other overcurrent protection devicesSwitching and signalling systems
Change published on 1.1.2010
Selected format:
Change published on 1.7.2013
Selected format:1.10.2002
WITHDRAWN
1.1.2004
WITHDRAWN
1.8.2002
WITHDRAWN
1.12.2011
1.10.1977
1.9.2011
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