The table below summarises the plug types, voltage and frequency of electrical current in both Korea, North and Iran.
| Korea, North | Iran | |
|---|---|---|
| Plug Types | C | C |
| Voltage | 220V | 230V |
| Frequency of electrical current | 50Hz | 50Hz |
Korea, North uses Plug Type C.
No adaptor needed
Iran uses Socket Type C, which is the same as the plug type of your appliances from Korea, North. You will not need an adaptor.
The voltages found in Korea, North (220V) and Iran (230V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.
The frequency found in Korea, North and Iran is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.