Use of spring terminals for AC connections on Multiplus-II (which units?)

[l00semarble]

I am trying to figure out which Multiplus-II models come with the spring terminals for AC (which I am trying to avoid) and which ones come with the more robust screw down terminals. Is there any documentation that is definitive about this? I tried to use the photos available on the web site but the connections photos are limited and I think they don’t necessary match the exact part number. For example if I look at the photo of what is supposed to be a 12/3000-50 120v it shows a photo with screw down AC terminals but I’m certain every one we install has spring terminals.