Electricity in the UK: Type G Plugs, Voltage, Adaptors and Charging

The UK uses its own familiar three-rectangular-pin connection rather than a generic “European” socket. Check your appliances’ electrical input as well as the plug, and pack a suitable adaptor before arrival. At the hotel, a small switch beside the socket is worth checking before blaming a charger.

The essentials: 230V, 50Hz and Type G

The nominal UK supply is 230V at 50Hz. The usual wall connection is Type G, the British BS 1363 design. England, Scotland, Wales and Northern Ireland do not require separate adaptor types.

A compatible voltage rating does not guarantee a plug will fit. A physical adaptor changes the connection, not the voltage or frequency, so check the appliance and the adaptor separately.

Recognising the plug and socket

The British plug has three rectangular pins arranged in a triangle. Many outlets have individual switches. The photographs show both the pin arrangement and a switched double outlet.

A slim two-round-pin Europlug, a North American flat-pin plug or an Israeli Type H plug is not a direct match. Never force a connection or push an object into an outlet to open its shutters.

A double UK outlet: the left socket is plugged in and switched on; the empty right socket is switched off. Each outlet has its own switch. · Thryduulf · CC BY 3.0 · Unmodified

Type G plug and socket: three rectangular pins in a triangular arrangement. · Ukpluggerrr · CC BY-SA 4.0 · Unmodified

Choosing an adaptor that fits your equipment

Choose a Type G output and an input explicitly compatible with your own plug. An appliance requiring an earth connection needs a continuous earth path through the adaptor and outlet. A two-pin-only adaptor is not a substitute.

Check the current and power rating too. “Universal” does not prove compatibility with every national plug or suitability for a high-power appliance. Use a reputable product with a clear specification. Travel adaptors sold in the UK with a UK connection are required to meet BS 8546.

Do you need voltage conversion?

Read the Input line on the power supply. A 100–240V, 50/60Hz rating includes the UK supply; 220–240V, 50Hz also matches its electrical characteristics. A 110–120V-only appliance cannot be connected directly through a plug adaptor.

A converter must suit the appliance type and load, and may not change frequency. For heating appliances or essential equipment, follow the manufacturer’s advice or use a locally compatible alternative. The low-voltage USB Output rating is not the mains Input rating.

High-power appliances and bathroom outlets

Heating appliances often draw much more power than phone chargers. As a calculation example, 2,000W at 230V is about 8.7A, exceeding a 6A adaptor’s rating. Check every component and avoid loading one extension with several heating appliances.

A bathroom may have a special shaver outlet, sometimes with more than one voltage label. It is not a general-purpose supply for hairdryers or kettles. Use only equipment permitted by its markings and instructions, keep appliances away from water and do not improvise an extension into the bathroom.

Charging several devices in a hotel room

A suitable multiport charger may reduce the number of adaptors needed. Check its input and the power available per port when several devices are connected. USB-C alone does not promise fast charging or enough power for a laptop.

Check the outlet switch and whether removing the room card disconnects the supply. Confirm that devices actually charged before a long day out. A spare cable and power bank are useful; plan enough charging capacity for everyone rather than only one phone.

Power cuts and local faults

For a room-only outage, contact your accommodation and stop using equipment suspected of causing it. Do not dismantle sockets or bypass protection. A burning smell, sparking or excessive adaptor heat calls for stopping use and getting help.

In Great Britain, find the network operator through Power Cut 105 or call 105. In Northern Ireland, check the NIE Networks Powercheck map or call 03457 643 643. Restoration times are estimates and can change, especially during storms.

Essential equipment and a practical packing check

For powered medical equipment, arrange a compatible supply and any necessary backup with the accommodation, following the manufacturer’s instructions. A room photograph does not prove continuous power beside the bed. Equipment that cannot tolerate interruption needs a proper plan, not just a phone power bank.

Pack Type G adaptors compatible with your actual plugs, voltage-compatible chargers, intact cables and a power bank. An electric rental car requires separate charging arrangements; a travel adaptor for small appliances is not vehicle-charging equipment.

We stayed here on our 2022 family trip. We preferred its spacious, comfortable rooms and the price we found compared with central options, accepting a journey at either end of the day. It is beside Greenwich station, not in central London. Check current room types and prices for your dates. Check rooms and prices on Trip.com