Old / new plugs question -- just curious
Okay, I don't have any Märklin trains, but I have a question that some of you Märklin owners may be able to answer.
Background: In looking at various ways of cabling my layout, I have decided that there are a number of places that I want to be able to remove a structure or other component -- so the power feed should be with plugs, rather than soldered. In the past, I've used some Kleinbahn plugs for this -- but the Kleinbahn plugs really aren't compatible with anything else (that I know of) and, at times, are a pain to work with. (Also, to get more, I would have to order these from Austria.)
So, as I already have some Viessmann accessories -- and plan to acquire more -- I have decided to use the plugs used by Viessmann -- which appear to be identical to those supplied by Brawa, and apparently also used by Faller. (Both plugs and sockets come in a variety of colors, which would be helpful in a number of ways.)
It is my understanding that Märklin also used these plugs in the past, but has now switched to different smaller plugs for current products.
The question: When did Märklin make this change and is there any known reason for this -- other than to make their products less compatible with those of other manufacturers?
On the other hand, these smaller new Märklin plugs may just be compatible with the Kleinbahn items that I have. I guess the only way to find out is to order a few. (I don't have any measuring equipment precise enough to measure the exact size of the Kleinbahn plugs to compare them with the new Märklin plugs.)
Any insights would be appreciated. Yes, I am aware that Brawa now offers both size plugs, and will apparently continue to offer the larger ones.