Which plug adaptor do I need when travelling from Antigua to Thailand?

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The table below summarises the plug types, voltage and frequency of electrical current in both Antigua and Thailand.

Plug TypesA, BA, C
Frequency of electrical current60Hz50Hz

Plug Adaptors

In Antigua there's more than one plug type in use.

What type of plug does your appliance have?

Your Appliance has Plug Type A

In Thailand there's more than one socket type in use.

You will need this adaptor:

Socket Type A
to Plug Type C

Thailand also uses Socket Type A, which is used in Antigua. If using an appliance that has a Type A Plug in the Type A Sockets of Thailand, you will not need an adaptor.

Your Appliance has Plug Type B

In Thailand there's more than one socket type in use. You may require more than one adaptor.

Adaptor 1 of 2

Socket Type B
to Plug Type A

Adaptor 2 of 2

Socket Type B
to Plug Type C



The voltages found in Antigua (230V) and Thailand (220V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.

Frequency of Electrical Current

The frequency of electrical current found in Antigua (60Hz) differs to that found in Thailand (50Hz).

Most equipment is not affected by differences in frequencies. Some exceptions are:

  • Electric clocks: Some electric clocks use the frequency of electrical current to measure time. If the clock is designed for one frequency, but used with another, time shifts could be experienced.
  • Appliances using motors: If there is a motor load associated with an appliance, the frequency governs the speed in revolutions of the motor. This could mean that the motor will spin faster, or slower than intended and could have a detrimental effect in the appliance's operation. This is of particular concern in power tools and other machinery that uses motors, so if you must use these, you should seek access to a frequency converter.

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