You should move this thread over to the MRR forums.
Rich
Alton Junction
Peco Insulfrog turnouts have an insulated frog, whereas the Electrofrog variant has a juiced frog, requiring some additional work when installing them. You need to insulate the rails following the frog and add some wiring.
Both types of turnouts are power routing.
The advantage of the Electrofrog turnouts is, that there is no interruption of power. This may come handy when you run locos with a short wheelbase.