Type I vs Type J Plugs: Pin Design Differences & Compatibility
Type I is a 3-pin, grounded plug rated 10A at 220-240V, while Type J is a 3-pin, grounded plug rated 10A at 220-240V. The two differ mainly in pin design, which is what decides compatibility — whether a Type I plug fits a Type J socket, and vice versa. Also see type B vs type E plug.
Swipe to compare
Type I
|
Type J
|
|
|---|---|---|
| Standard | AS/NZS 3112 | SEV 1011 |
| Pin Configuration | Two angled flat pins (8mm long, 6.5mm wide, 30 degree angle) plus vertical grounding pin | Two round pins (4mm diameter) plus offset grounding pin (center pin 10mm from others) |
| Grounding | Grounded | Grounded |
| Pin Count | 3 | 3 |
| Amperage | 10A | 10A |
| Voltage Range | 220-240V | 220-240V |
Key Differences Between Type I and Type J
Here's how Type I and Type J compare, point by point.
- Grounding: Both Type I and Type J are grounded.
- Pin Size and Shape: Type I: Two angled flat pins (8mm long, 6.5mm wide, 30 degree angle) plus vertical grounding pin. Type J: Two round pins (4mm diameter) plus offset grounding pin (center pin 10mm from others).
- Application: Type I is typically used for everyday household electronics and small appliances. Type J is typically used for everyday household electronics and small appliances.
Type I and Type J Compatibility
Type I in Type J Sockets: Generally no. A Type I plug (Two angled flat pins (8mm long, 6.5mm wide, 30 degree angle) plus vertical grounding pin) does not fit a Type J socket (Two round pins (4mm diameter) plus offset grounding pin (center pin 10mm from others)) without a travel adapter.
Type J in Type I Sockets: Generally no. A Type J plug (Two round pins (4mm diameter) plus offset grounding pin (center pin 10mm from others)) does not fit a Type I socket (Two angled flat pins (8mm long, 6.5mm wide, 30 degree angle) plus vertical grounding pin) without a travel adapter.
If you're planning a trip, tell us which country you're visiting and we can confirm whether you need a Type I or Type J travel adapter. For a related pairing, see is type A compatible with type C.
Does a Type I plug fit into a Type J socket?
Generally no. A Type I plug (Two angled flat pins (8mm long, 6.5mm wide, 30 degree angle) plus vertical grounding pin) does not fit a Type J socket (Two round pins (4mm diameter) plus offset grounding pin (center pin 10mm from others)) without a travel adapter.
Are Type I and Type J plugs the same?
No. Type I follows the AS/NZS 3112 standard and Type J follows SEV 1011 — they differ in pin design.
Which countries use Type I and Type J plugs?
Type I plugs are used in 24 countries, including American Samoa, Argentina, Australia, China, Christmas Island. Type J plugs are used in 4 countries, including Jordan, Liechtenstein, Maldives, Switzerland. Next, check type L vs type N plug.
How can you tell a Type I plug from a Type J plug?
A Type I plug has two angled flat pins (8mm long, 6.5mm wide, 30 degree angle) plus vertical grounding pin, and is grounded. A Type J plug has two round pins (4mm diameter) plus offset grounding pin (center pin 10mm from others), and is grounded. The quickest tell is pin size and spacing — compare the two pin configurations above.