Last updated: 4 January 2025
Type C
- commonly used in Europe, South America & Asia
- 2 pins
- not grounded
- 2.5 A, 10 A & 16 A
- almost always 220 – 240 V
- socket compatible with plug type C
What is the mains voltage in South Korea?
The voltage in South Korea is 220 volts and the frequency is 60 Hz.
220 V ~ 60 Hz
Background information
![](https://www.worldstandards.eu/wp-content/uploads/electricity-type-C-vintage-bakelite-wall-socket-300x300.jpg)
Obsolete type C Bakelite wall socket (1950s)
South Korea has standardized on type F sockets and plugs. Type C and type E plugs can also be used thanks to their compatibility with type F sockets.
Typically, type C plug sockets are not allowed to be installed in South Korea: these outlets are not earthed and are therefore considered dangerous. Only type F power points are permitted because they are grounded and therefore significantly safer.
The only (and rare) exception to this rule is that an old type C outlet should be replaced by a new one. After all, if you hook up a grounded wall outlet (i.e. type F) on a two-wire circuit, the socket will not be grounded, but people will get the wrong impression that it is actually grounded. No need to say, this would be a potentially dangerous situation.
Nowadays, however, type C receptacles are not frequently installed anymore, since older properties are almost always completely rewired when they are renovated or significantly altered.