Tonga is an archipelago in the South Pacific Ocean. A tourist who wants to spend some time in the country must know the kinds of electrical outlet and plug are present there, as well as the standard voltage.

In Tonga, the standard voltage used by electronic gadgets and appliances is 220-240 volts while the electrical outlet is Type I Australian AS-3112. Also, some of the things to consider when using an electronic gadget or appliance in Tonga are the compatibility of the plug with the electrical outlet as well as the voltages.

When the voltage of the electronic gadget or appliance does not match with the voltage of the electrical outlet, there might be some damage to it or using it might even cause a fire. To make the appliances and electronic gadgets coming from other countries work, one must use voltage converters like step-up or step-down transformer, network-resistor converter, and combination voltage converter. For the shape of the plug, there is an adapter that would make the shape of the electrical outlet compatible with the electronic gadget’s plug.

Type I Australian AS-3112 Adapter, Plug, and Electrical Outlet

Type I grounded plug

The Type I Australian AS-3112 plug in Tonga features a grounding pin and two flat prongs that form a V-shape. It is the standard in most houses in Tonga and it is also slightly similar to the Chinese CPCS-CCC and the Argentine IRAM electrical outlet. These three sockets are interchangeable and are classified under the unofficial “Type I” category.  Moreover, the receptacle end of this Type I Australian AS-3112 can accept any standard household plug type in Tonga except the Type M South African SABS1661, also known as the Old British BS-546 Large plug. The blade contacts of the Type I Australia AS-3112 are 6.5 x 1.6mm with a phase and neutral blade angled at 30 degrees to vertical at a nominal pitch of 13.7mm.

Type I non-grounded plug

This standard plug of Tonga is also polarized and grounded. However, there is also an ungrounded version of the Type I plug that only has two flat V-shaped prongs, but the electrical outlet is always three-pinned. The Type I plug has other variants that include 15 A, 20 A, 25 A, and 32 A. Most of the time, during travels, people carry with them their laptop computers, cameras, mobile phones, and mp3 players. The batteries of all these must be charged through an electrical outlet and when the plugs do not match, an adapter that is compatible with the Type I outlet must be used. Aside from Tonga, other countries that use the Type I Australian AS-3112 are Argentina, China (mainland except Taiwan), Papua New Guinea, Uruguay, Fiji, and Tokelau (the Union Islands). This electrical outlet and plug is commonly used in Tonga and other countries in the Pacific area as well.

Type I outlet

Type I adapter