Testing Lab of Power Supply/ IT / AV Products

Planning to sell wall plug power adapters in South Korea through Coupang, Naver Shopping, or B2B channels? You need KC certification (Korea Certification) — covering both safety (KATS) and EMC (RRA). Korea has its own plug configuration (220V/60Hz, C-type compatible), and certification must be held by a Korea-based entity — usually your importer or distributor. If you already have CE or UL certification, most of your safety test data is reusable, but the Korean-specific testing and documentation add incremental work. This guide covers what you need, what documents to prepare, and what to expect for cost and timeline.

KC Certification — Two Separate Tracks

KC certification for power adapters involves two independent certifications:

• KC Safety (KATS): Based on K 62368-1 (Korea's adoption of IEC 62368-1). Tests: dielectric withstand (3000 VAC), leakage current, temperature rise at 220V/60Hz, and abnormal operation. An IEC 62368-1 CB report with Korea National Deviations significantly accelerates this track.
• KC EMC (RRA): Based on KN 32 (emissions) and KN 35 (immunity). Testing at 220V/60Hz. If you have CE EN 55032 report at 230V/50Hz, the Korean lab can reference this data — the 50Hz to 60Hz shift has minimal impact on EMC measurements.

KC Safety requires factory inspection; KC EMC does not. Both require a Korean Representative Entity to hold the certification.

Documents You Need

• Product specification sheet (input/output ratings, plug type)
• Schematic + PCB layout + BOM with critical component certification numbers
• Existing CE CB test report (if available — speeds up KC Safety)
• Korean importer's business registration number
• Korean-language label design and manual
• Samples: 2-3 units for safety + 1-2 for EMC

Cost and Timeline Factors

KC certification costs vary based on: whether you have an existing CB report with KR ND (reduces safety testing), the adapter's power level (higher power = more temperature rise test time), and whether factory inspection is needed (KC Safety requires it). The Korean Representative's service fee is a separate cost item — negotiate this as part of your importer agreement. Timeline: KC Safety and EMC can run in parallel. Safety is typically the longer track due to factory inspection scheduling. RRA EMC lab turnaround is generally faster. wall plug adapter KC certification cost and timeline estimate based on your product.

Frequently Asked Questions

This content is for informational reference only. For inquiries, please contact us.

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