Please could you highlight the differences between the residential and industrial EMC testing requirements? I also understand that there is a third category which is for use in EMC controlled environment. We are most interested in the requirements for apparatus for use in industrial applications.

Emissions requirements for an industrial application are less severe than those stated for commercial areas. Immunity requirements however are more stringent as equipment will need to be tested to higher levels i.e. Radiated immunity levels are 10V/m for industrial applications and 3V/m for the commercial environment. Generic Standards for 'Residential, Commercial and Light-industrial' are as follows: EN 61000-6-1 = Immunity; EN 61000-6-3 = Emissions. Generic Standards for 'Industrial' environments are as follows: EN 61000-6-2 = Immunity; EN 61000-6-4 = Emissions. For more information regarding the classification of electromagnetic environments please refer to IEC 1000-2-5.

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