Part 2 of IEC 61558 specifies rated supply voltage not exceeding 250 V a.c., 50/6
KS C IEC 61558-2-7:2002 history
2022KS C IEC 61558-2-7-2022 Safety of power transformers, power supply units and similar devices-Part 2:Particular requirements for transformers for toys
2017KS C IEC 61558-2-7:2017 Safety of power transformers, power supply units and similar devices-Part 2:Particular requirements for transformers for toys
2002KS C IEC 61558-2-7:2002 Safety of power transformers, power supply units and similar devices-Part 2:Particular requirements for transformers for toys