What Power Plug

TIS 166-2549

Type O plug and socket

The Thai three-pin. Used in 1 country.

Type O socket face
Pins
2 round pins plus a round earth pin
Rating
16 A / 250 V
Earth
Earthed
Standard
TIS 166-2549

What Type O looks like in use

Type O is Thailand’s own earthed plug, introduced in 2006 to replace the imported British and American patterns that had accumulated in Thai buildings.

The socket face is designed to accept the Thai O plug alongside American A and B plugs and European Europlugs, which matches what travellers actually find in hotels: a hybrid face that takes almost anything two- or three-pin.

Thai regulations no longer allow earthed appliances to be sold with European Type E or F plugs, because the earth contact would not be made.

Watch out: Thai hybrid sockets often accept Type A, B, C and O. British Type G plugs, common in older buildings, need an adapter.

Countries using Type O

1 country in total
Thailand 220 V / 50 Hz

Other plug types

Type A socket Type A Type B socket Type B Type C socket Type C Type D socket Type D Type E socket Type E Type F socket Type F Type G socket Type G Type H socket Type H Type I socket Type I Type J socket Type J Type K socket Type K Type L socket Type L Type M socket Type M Type N socket Type N

Check your own devices

Will my plug work?

Compare where you are from with where you are going, including Type O destinations.

Pick two countries to see whether you need an adapter.