Scott, Just an FYI, I have a large N Scale layout. It is one big block. No isolators. I run 2 double headed trains at a time. The layout barely pulls 1 Amp. Maybe 1.2 Amps when the engines are cold. This is what my RRamp Meter is telling me. It is wired between the Command Station & the track. My base load is about .75 Amp at idle. That is because I have over 30 engines on sidings ready to go. So, 4 engines pulling trains are barely pulling over .5 Amps.
