I had never seen that "Typ 402" engraving before (check other engravings here).
(I will soon celebrate my 5 years of collecting!!!)
Of course, no information about Power unit (usually 300 Watt): It is for a stove-top machine.
Interestingly enough, i found it on a Stella Model 402E... so, the electric version.
Even more interesting, on the stovetop Stella 402 i own, there is a 402E lid.
Mix and Match.
Glad i could buy this one though.
I just like it.