In another example of the potential electrical safety risks that can be associated with phone chargers, Apple has recalled adapter plugs sold with older iPhones amid concerns they might overheat.

Although the UK is thought to be unaffected by the recall notice, “In rare cases,” Apple warns, the 5W European USB power adapter “may overheat and pose a safety risk.”

The adapter for European two-prong power sockets comes with the iPhone, and is also sold as a separate accessory. According to Apple, the only plugs with a problem are those that were sold with the iPhone 3GS, iPhone 4 and iPhone 4S between October 2009 and September 2012.

A redesigned version comes with more recent phones. If you have one of the older, potentially defective adapters, Apple will swap it for one of the redesigned versions.

To check your plug, look between the twin prongs: the affected adapter has the model number A1300 with the letters CE written in solid grey letters. Most of Europe and the Nordic countries are included in the recall. Affected countries outside of Europe include Egypt, South Africa and Vietnam.

Details at www.apple.com.

Apple iPhone adapter warning