Six years ago I used a CS2 with the 19VDC 60101 100W power supply and measured the power consumption. My MTH F3 AA, upgraded to PS3, used 1 to 1,5 A with smoke when standing still. 3.3 A when pulling 5 passenger cars in 30 scale mph. Voltage 18 V.
You can still find manuals on the MTH site, https://www.mthtrains.com/products and type the item number where it says “Search by SKU…”.

So then if I am understanding, based on what was said by you guys the MS2 is not really adequate to run the locomotives that I have.

Furthermore, I should only hook it (MS2) up to a 19v 1.9amp power supply to protect it.

If I did that to test the layout out, any locomotive that starts to draw more than 1.9 amps would "trip" the power supply but the locomotive and MS2 would be safe.

If however I hooked it up to a 5amp power supply, and any locomotive starts to draw more than 1.9 amps, the locomotive and the power supply would be safe but I would "fry" the MS2.

Is my thinking here correct?

If so I guess I am now in the market for a central station 3??

Thanks for the advice,
Todd

OK, thank you.

So what is the solution in your opinion?

A central station because the rating is higher?

Also, hard to understand that the MS2 is listed as ok to run 1 gauge, I don't see the point. I also don't understand how using it in conjunction with a central station would keep it "safe".

Central Station, ESU ECoS, Intellibox, whatever you like.
If you need mfx and/or MM, that will limit the choice.
If all your locos support DCC, then there is a wide range to choose from.

MS2 is enough to run a single I gauge loco, at least most of them.
A double heading with sound and dynamic smoke plus a train with interior lights may well be over its limits.

With digital, you need a booster that provides the track power.
With the MS2 system, you have handheld device that provides the "user interface" and you have the trackbox with the "brain" and the "booster", limited to 1.9 A.
Boosters have overload protection and switch off before they get damaged.