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Good evening everyone,

The other night I had put together a lashup on my layout using the MTH DCS system.

 

The lash up included 3 MTH Steam engines and 2 MTH Caboose with standard lighting that come from MTH. 

 

While I had no problems running the lashup I did notice that the amp meter on the track one throttle on my Z4000 would show 5.2 to 6.0 amps.

I am not surprised due to amperage draw of all three engines and the 2 cabooses.

 

My question is what is the maximum on the amps before the circuit breakers kick on the Z4000 throttles.

 

I know I read the answer to the question somewhere but I can't seem to be able to find it.

 

Thanks in advance !!

 

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5.2-6 Amps for 3 engines to pull 2 cars?  Seems like a lot of power to pull 2 cars but maybe not.  If you have occasion to run this configuration again, try running with all 3 engines uncoupled and separated by several feet (but running as a lash-up) with one of the engines pulling the 2 cars.  I'm curious how the Amps reading changes if at all.  The idea of separating the engines by several feet it to see if there's any obvious speed variations causing the separations to noticeably change over a few loops.

Good evening Stan,

In this Lashup I had the (3) MTH Steam Engines, smoke units at maximum output and (2) Lighted Cabooses with standard lighting as I mentioned.

 

But I also had in this Lashup 19 MTH standard box cars.

 

With that many cars I had a pretty good train when I had all this Lashup put together this is why I figured I was reading the higher amps on the Z4000

 

Hi Mark, OK thanks for the clarification.  Reminds me of the CSX TV commercial where they claim they move a ton of freight 400 miles on a gallon of fuel or something like that.  I think very few guys here know (or care) how efficient their locomotives are in pulling weight.  So when I read you were expending over 100 Watts (18V x 6 Amps) to pull 2 cars I had to look twice.  But if your smoke units were running full tilt, brightly lit cabooses, etc. then all bets are off!  Fortunately, very few of us have to generate $ revenue pulling O-gauge loads around and at ~10 cents/kwH for electricity in the U.S. you don't have to be smarter than a 5th grader to do the math.

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