The EN6100-3-2 standard deals with the limitation of harmonic currents injected into the public mains supply system. Meanwhile, the EN6100-3-3 standard addresses the limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with a rated current of over 16A. These two standards, which became a mandatory requirement in Europe in 2001, apply to electrical and electronic equipment that have an input current up to and including 16A per phase and that are intended to be connected to public low-voltage distribution systems, such as supply voltages nominally 230V AC or 415V AC 3 phase.
