Apple has today announced a replacement program for some European iPhone USB adapters. The company says that it has identified that some USB adapters bundled with iPhones (as well as sold separately) may overheat and ‘pose a safety risk’. The adapter shipped with European models of the iPhone 3GS, iPhone 4 and iPhone 4s from October 2009 to September 2012.

Affected adapters feature the Model ‘A1300’ designation, found on the bottom of the unit as pictured above. Apple will replace the power adapters for free at its dedicated replacement portal website. A full country list is below.

Units can be replaced at Apple Retail stores, some authorized resellers, or over the phone with Apple technical support. Apple will also refund customers who paid for replacement chargers because of this issue. Check Apple’s site for more details on the process.

It is important to note that this program is different to the power adapter scheme from last year, which involved replacing unauthorised third-party chargers which were prone to electrocution.

Apple lists the following countries as being affected by this issue.

Albania, Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Hungary, India, Indonesia, Israel, Italy, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Turkey, Vietnam