K-Line 952B Controller

No. Just don’t have the loop of track that the controller is powering connected to any other loops, via switches/turnouts or transformers. The controller switches the polarity of the entire loop, which would cause unintended results on a larger layout with several interconnected loops.

No isolated section needed. The wires from the red & black posts on the K-952B power the entire track - black to lockon clip 2(outside rails) and red to lockon clip 1(center rail).