Everything that matters, at a glance.
Pin layout, voltage, amperage, dimensions — the technical details for Type I in one tidy table.
The Type I plug was developed in Australia in the early 20th century. Australia adopted a unique standard that later spread to New Zealand and, with modifications, to China. The angled pins provide a secure connection.
Modern Type I sockets include safety shutters and insulated pins. The grounding pin (when present) is longer and must be inserted first to open the safety shutters on compliant sockets.
Type I outlets only accept Type I plugs. While Australia/NZ and China both use Type I, there are slight variations in pin dimensions. Two-pin (ungrounded) versions exist for low-power devices.
11 countries use Type I.
Mostly across Oceania and China. Click any country for the full guide — voltage, adapters, and travel essentials for that destination.
Routes to and from Type I countries.
Country-to-country adapter guides for the most common trips involving Type I destinations.
Other plug types worth a look.
Neighboring plug types — same region, related shapes, or shared voltage zone. Useful when your trip has multiple stops.
Adapters travelers actually pack for Type I.
Three picks tested against Type I outlets — universal options that also work in 150+ other countries.
Type A/B to Type I adapter. Works in Australia, New Zealand, China, Fiji.
Type G to Type I adapter. Works in Australia, New Zealand, China.
45W Universal Travel Adapter, European Travel Plug Adapter with PD&QC Fast Charging(2 USB-A & 3 USB-C Ports) - Worldwide Travel Essentials, International Power Adapter for UK/US/AU
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Will my devices work? Run the check.
Type I runs at 220-240V, 50Hz. See exactly which of your devices plug in safely and which need a converter.
Every plug type, in one place. All 15.
Type A through Type O — what they look like, where they're used, which countries share them. The full reference our visitors come back to most.
Keep going. Explore further.
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Side-by-side database with shape, voltage, countries.
Why some chargers blow up and others don't — the dual-voltage rule.
The 30-second test that tells you which devices need which.
How the world ended up split between 110V and 240V.
Tested picks from universal kits to single-route adapters.
110V vs 230V and what it means for your devices.
What is the Type I plug?+
Type I features two angled flat blades arranged in a distinctive V-shape with an optional vertical grounding pin below. This unique angled design, set at 30 degrees, creates an instantly recognizable plug that's used primarily in Australia, New Zealand, China, and Argentina. The angled blades provide a secure mechanical connection that resists accidental disconnection. In Australia and New Zealand, the standard operates at 230V/240V with 50Hz frequency. The grounding pin is mandatory for appliances requiring earthing, making it safer for high-power devices. This design is considered one of the safest plug types due to its secure fit and proper grounding.
Which countries use Type I?+
Type I is used in Australia, New Zealand, China and across Oceania, China, Argentina. See the full list below.
Is the Type I plug grounded?+
Yes. Type I has a dedicated grounding pin for safe operation with appliances that require an earth connection.
Do I need a voltage converter for Type I countries?+
Type I countries operate at 220-240V, 50Hz. Modern dual-voltage electronics (phones, laptops, cameras labelled "100-240V") work everywhere with just a plug adapter. Single-voltage appliances from a different voltage zone need a converter.
Can I use my iPhone or laptop charger with Type I?+
Yes. Apple chargers and most laptop power supplies are dual-voltage (100-240V), so they work in Type I countries with just a plug adapter — no converter needed.
Going somewhere that uses Type I? Pluggy packs the rest.
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