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  1. #1
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    I'm presently installing Kato unitrack turnouts on the layout. Wondering if the big blue turnout controls can be substitued with a smaller switch. I like the ease of setting up the switch, but it simply is too big to have on the facia board...and mounting seems to be a bear. Any tips and instructions on using other switches is greatly appreciated.

  2. #2
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    Sugar Land, Texas, United States
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    A small DPDT toggle switch with center "off" can be used. It has to be sprung so it returns to the center "off" possition when released. Connect a red wire and a black wire from your power source to the separate center poles. Connect the black wire from the switch motor to one of the outside poles next to the black power wire and also to the outside pole on the opposite side of the switch next to the red power wire. Run your red switch wire to the other poles still open. What you will then see looking at the back of the switch is two jumpers from the switch wires looping over the poles connected to the power source that kind of make an "X" . I believe the toggle switches can be purchased from Mouser.com
    Russell Straw, Sugar Land Route

  3. #3
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    Apr 2002
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    Nashville, TN
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    There is no direct replacement for the Kato turnout control switch.
    Even before I worked at Kato I went to a design convention where all the major switch manufacturers were present and asked them if they had a dpdt center off momentary contact switch where the rest position was not in the center (the Kato switch indicates the last side thrown by staying on its side of center). None of them had one nor did they have the foggiest idea of how design such a switch within their existing tooling....
    There have been circuits presented in MR that use diodes to indicate the turnout position with either a dtdt switch or pushbuttons... a search of trains.com would probably yield the article.
    Charlie Vlk

  4. #4
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    Holly Hill, FL
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    Use a DPDT toggle switch to set the turnout direction and then wire in a N.O. pushbutton switch on the supply leg of the DPDT switch. That way the toggle indicates the direction the turnout is thrown and the pushbutton throws it. Sorta like a CTC panel works.

  5. #5
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    The solution I showed is simple but does not indicate which position the turnout is thrown. However I guess you could get by looking at the layout to see. Here is a circuit diagram that I cobbled up to show how to wire it.
    Russell Straw, Sugar Land Route

  6. #6
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    Originally posted by Brett C. Cammack:
    Use a DPDT toggle switch to set the turnout direction and then wire in a N.O. pushbutton switch on the supply leg of the DPDT switch. That way the toggle indicates the direction the turnout is thrown and the pushbutton throws it. Sorta like a CTC panel works.
    Gee, now why didn't I think of that?
    Russell Straw, Sugar Land Route

  7. #7
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    Originally posted by r_i_straw:
    A small DPDT toggle switch with center "off" can be used. It has to be sprung so it returns to the center "off" possition when released. Connect a red wire and a black wire from your power source to the separate center poles. Connect the black wire from the switch motor to one of the outside poles next to the black power wire and also to the outside pole on the opposite side of the switch next to the red power wire. Run your red switch wire to the other poles still open. What you will then see looking at the back of the switch is two jumpers from the switch wires looping over the poles connected to the power source that kind of make an "X" . I believe the toggle switches can be purchased from Mouser.com
    Russel,

    I think I follow.....I found some switches on ebay...

    http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5903649775

    are these the right switches? According to your description....after I solder the wires to the center poles coming from my power supply...here is what I think you are saying...

    Back of DPDT switch

    x (jp red) x (blk from PS) x (blk Kato)

    x (jp blk) x (red from PS) x (red Kato)

    ...so the black wire from the Kato loops over the center poles to position jp blk. The red Kato wire loops over the center to position jp red. This creates the "X" you described. Is this correct? I assume you have tried this....does it work well? I like the operation and simplicity of the stock switch....and the performance of the switch is very good...hoipefully I can recreate that performance using this method. Thanks for the help on this....I'm not a good electrician....you made this very easy to understand.

  8. #8
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    Originally posted by WesternMaryland:
    are these the right switches?
    I am not sure if those are sprung to the center off possition. I think I like Brett's solution better. Go with a standard DPDT toggle with no center off, wire it as I show in the diagram above and add an N.O. (normally off) push button in one leg of the circuit. That way you will have an indication of the possition of the turnout.
    Russell Straw, Sugar Land Route

  9. #9
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    Originally posted by r_i_straw:
    </font><blockquote>quote:</font><hr />Originally posted by WesternMaryland:
    are these the right switches?
    I am not sure if those are sprung to the center off possition. I think I like Brett's solution better. Go with a standard DPDT toggle with no center off, wire it as I show in the diagram above and add an N.O. (normally off) push button in one leg of the circuit. That way you will have an indication of the possition of the turnout. </font>[/QUOTE]Sounds great! Thanks for the diagram! Also what is the best way to mount these little guys into the facia board? From what I have seen looks like there is no way to fasten these things to anything.... :eek: Anyway, thanks to all for the info on this subject...all have been a big help.

  10. #10
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    Originally posted by WesternMaryland:
    Also what is the best way to mount these little guys into the facia board? From what I have seen looks like there is no way to fasten these things to anything....
    These are pannel mount so they mount through a hole in some thin material. If your facia board is something like 1/4 inch massonite you may have to counter sink the holes slightly to get the nut on the switch coller. If it is thicker I would cut a large hole in the facia to clear the switches and mount them to a small aluminum plate and then fasten it to the facia board.
    Russell Straw, Sugar Land Route

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