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Search results with tag "Simple surge protection 07"
Simple Surge Protection 07 - lightning protection, surge ...
www.surgetek.co.zaPage 3 4.0 Surge Arresters – Class 3 (8/20) DEHNrail M 255V When using Class 3 surge arresters there must always be Class 2 surge arresters installed upstream to ensure that the units will not be overstressed. These units are typically 5kA (8/20) devises and are …