Korea Harmonizes KC 60335-2-29 with IEC Standards for Household Battery Chargers

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On December 23, 2025, the Korean Agency for Technology and Standards (KATS) issued an announcement No. 2025-370, proposing a revision to the safety standard KC 60335-2-29 (Household and Similar Electrical Appliances – Safety – Part 2-29: Particular Requirements for Battery Chargers). This revision aims to update the safety standards in alignment with international standards.

KATS is collecting public opinions on the proposed amendment until February 3, 2026.



Key Revisions

  • Update of IEC Edition: Ed 5.0 (2016-06) → Ed 5.1 (2019-03)
  • Expansion of ripple-free DC output range: Up to 120 V → Up to 250 V
  • Classification of charger types based on transformer specifications:

- Type 1: Battery charger output circuits supplied through a safety isolating transformer (DC output voltage must not exceed 120 V)

- Type 2: Battery charger output circuits supplied through an isolating transformer (DC output voltage must not exceed 250 V)


GCA Korea provides expert support for global companies navigating Korea’s regulatory requirements, including KC Certification.

Our expertise covers KC EMC, KC Safety, KC Energy Efficiency, KC Automotive Components, KCsEx (ATEX, IECEx), and MFDS (Korean Medical Devices).

Contact ⬇
Tel. +82-31-360-8180
E-mail: forest.lee@gca-kr.com


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