Atlas Remote Switch overloading Power Supply

ModelRailroadForums.com is a free Model Railroad Discussion Forum and photo gallery. We cover all scales and sizes of model railroads. Whether you're a master model railroader or just getting started, you'll find something of interest here.


Trainboy4449

New Member
I have recently added an Atlas Remote Switch to my layout and just got around to wiring it up. Whenever I operate the solenoid with my momentary switch my power supply warns me of an overload but the solenoid still throws the turnout correctly. This would imply there is a short somewhere in my wiring but after a lot of testing this is not the case. I checked the wiring and the switch machine by itself and found there is continuity between all three terminals on the switch machine. Is this normal?

I am using a grey Athearn (ath 9997) power supply and have wired multiple ez-track remote switches without problem.
 

GeeTee

Active Member
The resistance of the coils in the switch machine have a fairly low resistance , so it wouldn't surprise me that a continuity check would be positive between all three. It also doesn't surprise me that the pack would show an overload , but its possible that the switch machine might be partially toasted as well. Occasionally , a failed momentary switch will cause the Atlas to stay on and they will overheat , when they do the case of the switch machine will warp/deform or event melt.

So check the outside surface of the machine for signs of overheating / melting and replace if needed .
 

Trainboy4449

New Member
The resistance of the coils in the switch machine have a fairly low resistance , so it wouldn't surprise me that a continuity check would be positive between all three. It also doesn't surprise me that the pack would show an overload , but its possible that the switch machine might be partially toasted as well. Occasionally , a failed momentary switch will cause the Atlas to stay on and they will overheat , when they do the case of the switch machine will warp/deform or event melt.

So check the outside surface of the machine for signs of overheating / melting and replace if needed .
The switch is brand new so I don't think it is toasted, it's been like this since the first time I operated it. It still operates so I'll keep it for the time being.
 

trailrider

Well-Known Member
What is the source of power for the switch machine? It is possible that the power supply isn't enough even for momentary power. Essentially, when activating a solenoid, you are creating a short circuit. You might consider either upgrading the power supply, or purchasing a separate AC power supply. To prevent the Atlas controller from jamming, you might also consider using a Center Off momentary toggle switch mounted on you control panel (if you have one).
 

Trainboy4449

New Member
What is the source of power for the switch machine? It is possible that the power supply isn't enough even for momentary power. Essentially, when activating a solenoid, you are creating a short circuit. You might consider either upgrading the power supply, or purchasing a separate AC power supply. To prevent the Atlas controller from jamming, you might also consider using a Center Off momentary toggle switch mounted on you control panel (if you have one).
The power supply accessory terminals output 19V AC. Its plenty enough to power bachmann switches it only overloads with this atlas one. I am also using proper center-off momentary switches.
 




Affiliate Disclosure: We may receive a commision from some of the links and ads shown on this website (Learn More Here)


ModelRailroadForums.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com

RailroadBookstore.com - An online railroad bookstore featuring a curated selection of new and used railroad books. Railroad pictorials, railroad history, steam locomotives, passenger trains, modern railroading. Hundreds of titles available, most at discount prices! We also have a video and children's book section.

ModelRailroadBookstore.com - An online model railroad bookstore featuring a curated selection of new and used books. Layout design, track plans, scenery and structure building, wiring, DCC, Tinplate, Toy Trains, Price Guides and more.

Top