Type J Plug & Sockets
Type J — Swiss three round pins.
Type J at a glance
| Plug code | Type J |
|---|---|
| Grounded | Yes — has an earth contact |
| Typical voltage world | 220–240V (Europe, most of Asia/Africa) |
| Fits these sockets | Type J |
| Used in (countries) | 1 |
What a Type J plug is
Three round pins (Switzerland and Liechtenstein). A Type J socket accepts the Europlug (Type C), but a Type J plug fits only a Type J socket. Many generic "Europe" adapters do not fit recessed Swiss sockets.
Remember: the plug shape says nothing about the voltage. A Type A plug fits sockets in both the US (120V) and Japan (100V); a Type C plug fits 220–240V sockets across Europe and much of Asia. Always check the voltage of your destination before plugging in a single-voltage device.
Countries that use Type J sockets
What adapter to buy
External shopping link. PlugVoltage is not currently earning from this link.
Get a Type J travel adapter(opens in new tab)Safety check: a plug adapter only changes plug shape. It does not convert voltage, so confirm your device label before buying.
Shopping links never change the safety verdict.
Type J FAQ
What does a Type J plug look like?
Three round pins (Switzerland and Liechtenstein). A Type J socket accepts the Europlug (Type C), but a Type J plug fits only a Type J socket. Many generic "Europe" adapters do not fit recessed Swiss sockets.
Which countries use Type J sockets?
Type J sockets are used in Switzerland. Always confirm the local voltage — the plug shape alone never tells you whether your device is safe.
Do Type J plugs fit other sockets?
No. A Type J plug fits only Type J sockets — bring a dedicated adapter.
Standards reference framework
These IEC publications define the reference framework used to interpret nominal voltage and household plug/socket systems:
- IEC 60038: standard-voltage reference for nominal supply-voltage families.
- IEC TR 60083:2015: technical overview of plugs and socket-outlets used in IEC member countries.
- IEC 60884-1:2022: general safety and performance requirements for household plugs and socket-outlets.
These publications are reference standards, not proof of every live outlet. Country records still require current national, utility, or regional evidence and a visible review date.
Inspect country evidence. The public dataset separates primary, corroborated, partial, and pending claim coverage.
Plug types by country (full A–O guide) · Adapter vs converter
Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.