Type O
3 round pins
Voltage
220-240V
Frequency
50Hz
Amperage
16A
Grounding
Grounded
Countries
1
About Type O
Type O is the official standard in Thailand, adopted in 2006. It is similar to Type F but includes a grounding pin. Thailand also accepts Type A, B, C, and F plugs.
Type O Plug & Socket Photos
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![Type O plug]()
Compatibility
Type O is Thailand's official standard since 2006. Thai sockets often accept multiple types (A, B, C, F) for backward compatibility, making Thailand very adapter-friendly.
Countries Using Type O Plug
1 countries
1 primary
Type O is the official standard in Thailand since 2006. Thailand is unique in accepting multiple plug types (A, B, C, F, and O), making it one of the most adapter-friendly countries.
Asia (1)
Other Plug Types
Frequently Asked Questions
A Type O plug is a grounded electrical plug with three round pins that operates at 230V. It is used in Thailand and is similar in design to Type E and F plugs. Type O sockets in Thailand are typically compatible with Type C plugs.
A Type O plug has three round pins arranged with two power pins at the bottom and a grounding pin at the top. The design is similar to other European-style plugs with round pins.
Type O plugs are used in Thailand. Thailand is the primary country using this plug type, though Thai outlets often accept Type C (Europlug) as well.
For Thailand, Type C (Europlug) adapters typically work well, as Thai outlets are usually compatible with this common plug type. Type O is the official Thai standard, but most travelers find that Type C adapters are sufficient for ungrounded devices.
Need an Adapter?
Check our travel guide for tips on choosing the right adapter for your trip.
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