International Electrotechnical Commission

Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V – Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units - Edition 1.1 Consolidated Reprint
 N 61558-2-16

Annotation

This part of IEC 61558 deals with the safety of switch mode power supply units and transformers for switch mode power supply units. Transformers incorporating electronic circuits are also covered by this standard.

NOTE 1 Safety includes electrical, thermal and mechanical aspects.

This part applies to:

a) switch mode power supply units incorporating safety isolating transformers providing SELV, PELV or FELV a.c. or d.c. output voltage(s), or a combination thereof according to IEC 61140 and IEC 60364-4-41 for use with household and other consumer products, except for products covered by IEC 60065, IEC 61347 series, IEC 61204-7 and IEC 60950- 1;

b) switch mode power supply units with a maximum output voltage not exceeding 1 000 V a.c. or 1 414 V ripple-free d.c. for use with household and other consumer products, except for products covered in a) and products covered by IEC 60065, IEC 61347 series, IEC 61204-7 and IEC 60950-1;

c) this standard may be used for transformers for use in switch mode power supply units (see Annex BB).

This part covers the safety requirements for:

- separating SMPS for general use corresponding to Part 2-1;

- isolating SMPS for general use corresponding to Part 2-4;