Type B Plug & Sockets
Type B — North American grounded (two flat blades + round earth pin).
Type B at a glance
| Plug code | Type B |
|---|---|
| Grounded | Yes — has an earth contact |
| Typical voltage world | 100–127V (North America, Japan) |
| Fits these sockets | Type B |
| Used in (countries) | 7 |
What a Type B plug is
Two flat blades plus a round grounding pin. Used in the US, Canada, Mexico and Japan. A grounded Type B plug fits only a Type B socket (the earth pin will not enter an ungrounded Type A socket).
Remember: the plug shape says nothing about the voltage. A Type A plug fits sockets in both the US (120V) and Japan (100V); a Type C plug fits 220–240V sockets across Europe and much of Asia. Always check the voltage of your destination before plugging in a single-voltage device.
Countries that use Type B sockets
What adapter to buy
As an Amazon Associate and affiliate partner, we earn from qualifying purchases — at no extra cost to you. We only recommend gear we'd pack ourselves.
Get a Type B travel adapter ↗We may earn a commission — it never changes our verdict.
Type B FAQ
What does a Type B plug look like?
Two flat blades plus a round grounding pin. Used in the US, Canada, Mexico and Japan. A grounded Type B plug fits only a Type B socket (the earth pin will not enter an ungrounded Type A socket).
Which countries use Type B sockets?
Type B sockets are used in United States, Japan, Canada, Mexico, Thailand, Philippines. Always confirm the local voltage — the plug shape alone never tells you whether your device is safe.
Do Type B plugs fit other sockets?
No. A Type B plug fits only Type B sockets — bring a dedicated adapter.
Plug types by country (full A–O guide) · Adapter vs converter
Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.