Specifies electromagnetic compatibility (EMC) requirements for power supply units (PSUs) providing d.c. output(s) up to 200 V at a power level of up to 30 kW, operating from a.c. or d.c. source voltages of up to 600 V.The contents of the corrigendum of December 2000 have been included in this copy.
Specifies the measuring equipment and techniques to be used in assessing the conducted electromagnetic interference (EMI) generated by stabilized power supplies and especially by switched-mode power supplies. Relates mainly to power supplies for which the source current required does not exceed 25 A. The techniques employed follow the general principles given in CISPR publications. Requirements for measurements of radiated interference have not been included in this standard.
IEC 61204-3:2011 specifies electromagnetic compatibility (EMC) requirements for power supply units (PSUs) providing d.c. output(s) with or without auxiliary a.c. output(s), operating from a.c. or d.c. source voltages up to 600 V a.c. or 1 000 V d.c. The main changes with respect to the previous edition are listed below: - Update of the scope to align with IEC 61204-7. - Update of the normative references to the latest editions. - Change of the definitions of environments to align with the latest editions of the applicable normative references. - Revision of the applicability of tests to different power supply technologies. - Revision of the emission limits and requirements to align with the latest editions of the applicable normative references. - Revision of the immunity limits and requirements to align with the latest editions of the applicable normative references. - Clarification of the different classes of PSU.
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