Hi everybody,
to add my little contribution to this hot topic, did you ever notice the info at "Rating and principal characteristics" position in the Ultimaker's CB Certificate document? (https://ultimaker.com/download/17589/CB_Certificate.pdf)
We can read : "Model 2+, 2+ Ext, 3: 100-240 Vac 50 / 60 Hz..."
Yes, model 3! In a document of 2016-03-11...