The tech giant said it knew of 12 such incidents and asked customers to stop using them.
The plugs came with Macs and other iOS devices sold in Continental Europe and five other countries around the world between 2003 and 2015 and were included in the Apple World Travel Adapter kit.
Apple said customer safety was its “top priority”.
The recall relates to plugs for: Continental Europe, Argentina, Brazil, Australia, New Zealand, South Korea.
It does not affect plugs for: US, Canada, UK, Japan, China.
Affected users can exchange their plug at their local Apple store or request a replacement via the website.
In 2015, Apple urged owners of one of its Beats loudspeaker systems to stop using the kit because it posed a fire risk.
In 2014, Apple offered a free exchange for one model of USB iPhone chargers sold in Europe between 2009 and 2012, after a few cases of overheating.
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