EN 50121-3-2 is a European standard that defines electromagnetic compatibility (EMC) requirements specifically for railway rolling stock, including trains and associated components. This standard sets out the limits for electromagnetic emissions and immunity to ensure safe and reliable operation in various electromagnetic environments. It encompasses the evaluation of conducted and radiated emissions as well as immunity to disturbances from external sources, ensuring that railway systems can function effectively without causing or being affected by electromagnetic interference. Compliance with EN 50121-3-2 is essential for the safe operation of railway vehicles, contributing to the overall reliability and safety of railway systems across Europe.