One typical application for these connectors in a 230V setting would be a travel adaptor used by an American visitor to Europe
![[Linked Image]](https://www.electrical-contractor.net/ubb/wink.gif)
Like Paul wrote, the 1-15R and/or 5-15R are standard in some 220-240V countries. As the safety regulations are (usually) set at the national level, the standards of NEMA (or for that part IEC) aren't necessarily taken into consideration.