South Korea Revises Standard Voltage Tolerance Range

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On June 13, 2025, South Korea's Ministry of Trade, Industry and Energy (MOTIE) issued an amendment to increase the permissible deviation for the standard 220 V supply voltage to ±22 V. This change brings South Korea’s voltage standards in line with international practices, improving operational efficiency throughout the country’s electrical infrastructure.









This rule takes effect immediately upon promulgation.


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 For any questions regarding electric and electronic product requirements in Korea, feel free to contact us.


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