TVS

Both Mouser and Digikey stock them.

Do you need a PN?

Rod

I get mine from mouser

www.mouser.com/ProductDetail/L...BYmwr0yITlCHvg%3d%3d

Dale H

Part number please, sorry it took so long to respond working on Christmas decorations.

Ken M

1.5KE36CA

As in my previous link.

Dale H

Dale:

how are they integrated into the wiring

tony

Connect them directly across the track connections for each output from a transformer.

John:

Could you post a visual as to how these would be installed.

Thanks

Tony

Tony

Could be connected right on the Transformer binding posts:U to A, U to D,etc. 

Or [photo]you can connect them across the hot and common screw heads on a Terminal strip.

Or if qualified you could connect them between the pick up roller hot wire and engine frame[common] inside the locomotive.

First, the photo below shows connections to T-strip[barrier strip] directly from a 180 watt Power House. Conductor marked white is the Common and the Black is the Hot. Wired "across  the line". 8 position Barrier Strip is "split jumpered" having 4 double rows energized Hot and 4 double rows Common.

Second, fuzzy shot is connection across the U[top] and A posts on a pw ZW.

Dewey:

The first image of the terminal strip didn't come through, could you e-mail it to me.

Thanks.

Tony

Is there a plus and minus to these or can they go either way?

Art

The proper TVS is bi-polar and connects either way.  You're putting them across AC, the uni-polar ones are only for DC.

Having no understanding of electricity (bean counter) what does a TVS provide and should circuit breakers also be used.

Thanks

Tony

Yes, they serve two totally different functions.  The circuit breaker protects against overcurrent situations such as a short circuit or derailment.  The TVS protects against high-voltage spikes that can be generated from a variety of sources.  Any time you switch power off from a switch coil, for instance, a high voltage spike is generated.

Tony

Hope this is better--6 position split jumpered strip w/ TVS connected. Five [5] screw terminals each of Hot and common available for wire runs and railpower distribution to a power district.  Green code is Hot, white is Common marked on PoHo 180 watt transformer's wires.

Gunner, Dale and Dewey:

Thanks for all of your help and explanations. I'm in the process of re-wiring my layout and want to do it in the best possible way. Dewy, does that 6 position split come like that or did you modify it.

Thanks again.

Tony

Dewey: Thanks for the explanation. Tony

Since you're making breaker boxes, then I'd offer the easiest place to add the TVS would be inside the breaker boxes, at the new binding posts.  I did it this way when I made a bell & whistle button.