PSE and KC Certified Appliances: Japan & Korea Guide
Updated 2026-11-09
Japan requires PSE compliance under the Electrical Appliances and Materials Safety Act: importers notify METI, confirm conformity to technical standards, self-inspect, and label PSE, with third-party conformity assessment for specified products. Korea requires KC certification under the Electrical Appliances and Consumer Products Safety Control Act, with factory inspections for certified categories. Japan uses 100V 50/60Hz; Korea uses 220V 60Hz. Denocook builds both specifications; ask us for model-specific certificate status.
Two demanding markets with two different power systems
Japan and Korea are sophisticated appliance markets with strict, well-enforced safety regimes and completely different electrical systems. A product that clears Japan cannot clear Korea without redesign: Japan runs 100V, Korea runs 220V.
Japan — PSE
The Electrical Appliances and Materials Safety Act regulates manufacture and import of electrical appliances and materials. The obligations are clear (METI, PSE procedure):
- Notify the business to the government before starting manufacture or import.
- Confirm conformity of the product to technical standards.
- Carry out self-inspection and keep records.
- Label the PSE mark on the product before sale.
- For Specified Electrical Appliances and Materials, obtain conformity assessment from a registered testing organization.
The Cabinet Office’s public explanation of the law adds the scope picture: 457 appliance categories are controlled, of which 116 are designated specified electrical appliances requiring registered-body conformity testing, and 341 are non-specified, handled by self-conformity confirmation (Cabinet Office). It also notes that the importer of record must be an individual resident in Japan or a company registered under the Companies Act; foreign sellers without a Japan office need a registered representative (METI).
Food-contact surfaces (baskets, trays, seals) are additionally subject to Japan’s food utensils rules under the Food Sanitation Act (MHLW). Radio features fall under the Radio Law.
Korea — KC
Korea’s Electrical Appliances Safety Control Act system classifies products by risk into safety certification, self-regulatory safety confirmation, and supplier conformity confirmation (KTR). For safety certification — the highest tier — the factory undergoes an initial evaluation, and certified factories receive regular inspections (every two years per KTR) to maintain certification. The KC mark and certification number are labeled on the product or package. Test exemptions can apply when a valid CB certificate from an IECEE-accredited body covers the relevant part of testing (KTR). Korea’s regime description in the APEC electrical equipment arrangement also records the basics used by importers: 220V 60Hz supply and KC-marking requirements (APEC).
Plug, voltage, and frequency
| Market | Voltage | Frequency | Plug |
|---|---|---|---|
| Japan | 100V | 50Hz east / 60Hz west | Type A (two flat pins, non-polarized) |
| Korea | 220V | 60Hz | Type C / F round-pin patterns (KS C 8305 plugs) |
Japan’s dual frequency means motor products (stand mixers, portable blenders, milk frothers) must be engineered for both 50Hz and 60Hz, or sold as frequency-specific variants. Heating products handle 50/60Hz equally well, but at 100V they need element designs that deliver full performance at low voltage.
Mandatory and voluntary requirements by category
| Category | Japan | Korea |
|---|---|---|
| Air fryers | PSE; category and specified/non-specified status per model; Food Sanitation Act for basket and coating | KC; tier per attached tables |
| Stand mixers | PSE; Food Sanitation Act for bowl and beaters | KC |
| Egg cookers | PSE; Food Sanitation Act for trays | KC |
| Contact grills | PSE; Food Sanitation Act for plates | KC |
| Toasters | PSE | KC |
| Milk frothers | PSE; Food Sanitation Act for jug | KC |
| Electric lunch boxes | PSE; 12V car versions scope; Food Sanitation Act for inner tray | KC |
| Portable blenders | PSE; Radio Law for wireless models | KC; radio scope |
| Hand warmers | Battery rules; Radio Law if wireless | Battery product scope |
| Cup warmers | PSE | KC |
Labeling and manual language
| Market | Language | Marking |
|---|---|---|
| Japan | Japanese manuals and warnings expected for consumer sale | PSE mark per law, plus business name notification details |
| Korea | Korean manual required as certification documentation (KTR) | KC mark + certification number on product and/or package (APEC) |
Both markets expect meticulous, native-language manuals. Machine translation is a known rejection risk in Korean certification documentation; use professional translation for the certified Korean manual (KTR lists the Korean manual among required documents).
A word on product positioning: Japanese and Korean consumers rate build quality, finish, and quiet operation highly, and buyers in these markets often request specific detail changes — softer lid closures, quieter fans, different control layouts — before committing. Factory-side customization options and sampling terms for both markets are.
Documents the importer prepares
| Document | Japan | Korea |
|---|---|---|
| Business notification to government | METI notification by importer of record | — |
| Conformity to technical standards + self-inspection records | Manufacturer/importer | Factory |
| Third-party conformity assessment (specified products only) | Registered testing organization | — |
| Safety certification / confirmation / SDoC filing | — | Certification body or filing system per tier (KTR) |
| Factory evaluation | — | Required for safety certification (KTR) |
| Test reports | Registered testing organization or accredited lab | Accredited lab; CB route possible (KTR) |
| Native-language manual | Japanese | Korean |
How Denocook supports Japan and Korea buyers
- Dual-market engineering. 100V 50/60Hz builds for Japan and 220V 60Hz builds for Korea are separate engineering tracks, not plug swaps. All ten categories are available in both specifications.
- PSE document support. We supply technical standards conformity data, self-inspection support, and test reports your Japanese importer needs for METI notification and PSE labeling. Specified/non-specified classification per model is confirmed at quotation.
- KC document support. We provide test reports, circuit diagrams, and critical component lists for KC applications, and we support factory evaluations for safety certification tiers. Ask us for model-specific certificate status.
- Native-language manuals. Japanese and Korean manuals prepared with native review, not machine translation.
- CB route efficiency. Where IECEE CB certificates can reduce duplicated KC testing, we provide the CB documentation (KTR). Ask us for model-specific CB documentation.
Send your models and market (Japan, Korea, or both) through our contact page, and we will return the PSE category status, KC tier assessment, and certificate readiness for each model.
Related categories: egg cookers, air fryers, hand warmers, milk frothers.
Frequently asked questions
What does PSE require for a kitchen appliance imported into Japan?
Under the Electrical Appliances and Materials Safety Act, anyone manufacturing or importing electrical appliances must notify METI, confirm conformity to technical standards, carry out self-inspection, and place the PSE label on the product before sale. For Specified Electrical Appliances and Materials, a conformity assessment by a registered testing organization is also required (METI, PSE procedure).
What is the difference between specified and non-specified PSE products?
The law covers 457 appliance categories: 116 designated as specified electrical appliances (higher risk, third-party conformity assessment required) and 341 non-specified (self-conformity) (Cabinet Office explanation). Which category each model falls into is confirmed at quotation. Confirm the classification per model so your importer knows whether third-party testing is needed before production.
Who can be the importer of record in Japan?
Import business eligibility is restricted: only individuals living in Japan or companies registered under the Companies Act may import. Foreign businesses without a Japan office need a registered representative in Japan to submit the import notification (METI). Plan this early: the notification must be filed before the product goes on sale.
What does KC certification require in Korea?
Electrical appliances under Korea's safety control act are divided by risk into safety certification, self-regulatory safety confirmation, and supplier conformity confirmation. Safety certification requires product testing plus factory evaluation, and certified factories are inspected regularly to maintain the certificate (KTR). KC mark and certification number are labeled on the product or package.
What voltage and plug do Japan and Korea use?
Japan: 100V AC, 50Hz in eastern Japan and 60Hz in western Japan, with Type A two-flat-pin plugs. Korea: 220V 60Hz with Europlug/Type C and German-style Type F patterns. A 100V Japan build and a 220V Korea build are electrically different products.
How does Denocook support Japanese and Korean buyers?
We engineer 100V 50/60Hz models for Japan and 220V 60Hz models for Korea, keep IEC-based test data, and provide technical documents for PSE notifications and KC applications. Ask us for model-specific certificate status. Send your models and target market, and we will confirm classification, tier, and certificate readiness for each one.
Sources
- METI — Procedures required by the Four Product Safety Acts (PSE)
- Cabinet Office of Japan — Explanation of the Electrical Appliance and Material Safety Law
- KTR — KC Safety Certification (Electrical Appliances Safety Control Act)
- MHLW — Utensils, Containers, and Packaging (Food Sanitation Act)
- APEC — Description of Korea's electrical equipment conformity regime