Heading to Switzerland, Liechtenstein, Jordan, the Maldives, or Rwanda? You’re quite likely to come across the Type J socket there.
The Type J socket is specially designed to accommodate a three-pronged, grounded plug, featuring three round pins. It’s akin to the Type C socket but includes a central grounding pin to enhance safety.
Features of Type J Socket
A key feature of the Type J socket is this centrally located grounding pin, which provides an additional safety measure. The pins themselves are round, each 4 millimeters in diameter, and are fitted with an insulating sleeve at their base, which helps prevent accidental electrical contact.

Number of pins | 3 |
Grounded | Yes |
Voltage | 220 – 240 volts |
Ampere | 10 amps |
Other types of plugs that fit | Type C |
Other sockets compatible with Type J | None |
Do you need a travel adaptor for your UK devices? | Yes |
Type J sockets are designed for a maximum current of 10 amps and operate at a voltage of 220 to 240 volts.
Type J looks a lot like the Brazilian Type N but isn’t compatible. The grounding pin in Type J is positioned slightly differently than in Type N.
Click here if you need a travel adaptor for Type J
Dimensions
The Type J plug features precisely defined dimensions: the pins are each 19 millimetres long, with the outer pins spaced 19 millimetres apart, and the grounding pin is positioned 5 millimetres lower.
Using Type J Plug
The Type J socket is specifically designed for Type J plugs. However, Type C plugs can also fit into these sockets without any complications, making it a versatile option for travellers.
You’ll primarily encounter Type J sockets in Switzerland and Liechtenstein, but they’re also present in places like Jordan, the Maldives, and Rwanda. It’s wise to check in advance whether you’ll need a travel adaptor for your devices.
The Necessity of a Travel Adaptor
It’s strongly advised to carry a suitable travel adaptor that is compatible with Type J sockets to avoid any potential risks.
Without the appropriate adaptor, you might face issues such as being unable to charge your devices, risking damage to your charger, or, in extreme cases, triggering short circuits, electrical shocks, or fire hazards. To ensure a smooth and safe travel experience, make sure you’re well-prepared with the right adaptor.