Umm - do you mean via a contact track?
K: 2295 Contact Track Set
M: 24995 Contact Track Set.

Regards
Tony

This is going to be a really naive question, but that has never stopped me before :

Why would you want the outside rails isolated in a three-rail system?

I am confused. It never even occurred to me that they would be isolated...

Thank you, thank you very much ,

Jim (Dyed-In-The-Wool M-Tracker)

O-o-o-o-oh!

Thanks! "By jove, I think he's got it"

Jim

Hi Cem,

You could use TRIX Express 3-rail DC turnouts with K-track. You will have to file down the track end pieces as their is a rail profile height difference between the two track systems. K-track has a profile height of 2.54 mm, TRIX Express is 3.3 mm but all three rails are electrically isolated and will work well with your K-track.

You can also make your own using Peco track, see the forum on <u>Dual AC and DC operations on Peco c83 </u> in the HO scale section.
Track profile heights:

Maerklin C-track is 2.3 mm (0.090" or Code 90)
TRIX C-track is 2.1 mm (0.083" or Code 83)

Maerklin M-track is 2.5 mm (~0.010" or Code 100)
Maerklin K-track is 2.54 mm (0.010" or Code 100)

The reason that TRIX C-track is a lower track profile height is to accommodate the 2-rail DC market and the RP-25 wheel sets. The Maerklin C-track height of 2.3 mm is to accommodate the AC wheel sets that have a slightly different axle and flange height.

Henrik,

you are right, I have already verified that the slim K-track switches are electrically suitable for 2-rail operation. Their codes are 22715 and 22716.
I have no idea about the shorter switches or the double-slip switch.

And the flextrack 2205 and the straight track have insulated the left and right track as well.

Since we are on the topic of K-track, in my reversing loop throat I noticed that some passenger cars from Roco tend to derail when passing through these 'long' switches, and I am a bit mystified by this (more details tomorrow, I hope!)

Cheers,
N.Fotis

I guess that you have problem with the wheel-spacing. Try meassuring the inside distance between the flanges. Should be 13,9mm (according to the good doctor J.Vuye, now member here also...)
Note; these wheels can be off, even if you took the trouble of changing them to AC-wheels earlier!