CEI EN 61643-11/A11:2019-06

This Variant to the EN 61643-11 Standard contains additional requirements for portable surge arresters used to protect household and similar appliances to ensure the required level of intrinsic safety of such products, namely: independence from external means of product and safety testing, internal location of the disconnector(s), performance of all tests without resorting to external means, additional test conditions to account for the possible inversion of the line and neutral terminals, specific requirements and tests for surge protection components used with this type of arrester.