SteveH, bmoran4, GRJ, everyone—
Thanks so much for your kind replies/ thoughts/ advice on picking either the 7.5 or 10 amp rating of the Airpax breakers for my ZW. Right now my layout has totally separate double-track mainline loops. Per loop, I am running only a single engine of various types (Legacy diesels, and steam) with occasional running of 5- 1950’s Santa Fe aluminum passenger cars with TMCC Santa Fe A-A units with a total of 2 motors. Wire feeds to each loop are 14 gauge wire. I also want to be able to run 2 separate trains/ engines on one of the double track loops. Layout is approx 30’ long x 12’ wide.
So I will go with the (4) breakers of 10 amp ratings for each of the 4 outputs of the ZW.
Again, thanks for your help.
Carl J