"This is a centre off changeover switch, and as such it does exactly what I need it for - operating a roller shutter door which requires a live on one wire to open and a live on a different wire to close. Motor draw is 1.2A so well within the 10A rating of this switch. It remains to be seen what the reliability actually turns out to be.
I have to say that I have never heard a switch of this type being described as "retractive". Using parlance from conventional switch catalogues, it is three position, centre off, momentary (ie not maintained, returning to the off position once you remove your finger)."