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Switch wiring

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trigo(at)mail.telepac.pt
Guest

Posted: Sat Jul 02, 2016 6:47 am Post subject: Switch wiring

Guys



This switch



is model LT-2561-601-012 from Carling Technologies, which is a DPDT switch with illuminated lever tip.



I know that the 2 sets of 3 contacts on each side are the DPDT contacts, so no doubt about their wiring.

Now about the other 2 middle contacts, which are for the tip illumination, how are they wired?



Thanks

Carlos

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trigo(at)mail.telepac.pt
Guest

Posted: Sat Jul 02, 2016 7:39 am Post subject: Switch wiring

Guys



The switch in the attached images is model LT-2561-601-012 from Carling

Technologies, which is a DPDT switch with illuminated lever tip.

I know that the 2 sets of contacts on each side are the DPDT contacts, so no

doubt about their wiring.

Now about the other 2 middle contacts, which are for the LED tip

illumination, how are they wired?



Thanks

Carlos  



---

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glastar(at)gmx.net
Guest

Posted: Sat Jul 02, 2016 8:12 am Post subject: Switch wiring

Carlos there are some pictures on google for boats:



https://www.fpmarine.com/Articles.asp?ID=245



On 02.07.2016 16:46, Carlos Trigo wrote:



 	  Quote: 	
		  

 is model LT-2561-601-012 from Carling Technologies, which is a DPDT switch with illuminated lever tip.

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edpav8r(at)yahoo.com
Guest

Posted: Sat Jul 02, 2016 8:28 am Post subject: Switch wiring

Carlos,



The Carling datasheet for this switch...



     http://www.mouser.com/ds/2/65/LT-Series_Details___COS-275734.pdf



..is curiously silent on terminal connections.



I can only conceive of one way to connect it: as you said, the terminals down each side are the switch contacts, with the center terminal common in each circuit.  +12V is connected to the common terminals and switched to the terminals on the corners.



My guess is that +12V is also switched to the lamp internally, and the upper and lower middle terminals would be connected to ground for illumination in each toggle position.  You would only ground the side you want to light up, or both if you want illumination in both ON positions.



This would allow you to control the switch illumination by grounding it through another switch elsewhere; say, a limit switch.  If the switch were used to control flaps, for example, the toggle would be lit while flaps are moving, and extinguish when they reach the limit switch, breaking the bulb's ground path.



You may find that the lamp operates from only one of the +12V common terminals but not the other, or that each toggle position illuminates from a different common terminal.  This would be done to maintain separation between the two SPDT circuits that make up the DPDT switch.



A quick bench test would confirm or refute my hypothesis.  If you don't have a bench power supply handy, a 9V battery should suffice to light the toggle's bulb.  Or even an ohmmeter set to test continuity should work through an incandescent bulb.



Eric

 	  Quote: 	
		   On Jul 2, 2016, at 7:46 AM, Carlos Trigo <trigo(at)mail.telepac.pt> wrote:

 Guys

 

 This switch

 

 <image1.JPG>

 <image2.JPG>

 

 is model LT-2561-601-012 from Carling Technologies, which is a DPDT switch with illuminated lever tip.

 

 I know that the 2 sets of 3 contacts on each side are the DPDT contacts, so no doubt about their wiring.  Now about the other 2 middle contacts, which are for the tip illumination, how are they wired?

 

 Thanks

 Carlos

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edpav8r(at)yahoo.com
Guest

Posted: Sat Jul 02, 2016 9:06 am Post subject: Switch wiring

Well, I got that wrong!  Good find, Werner.



Eric



do not archive

 	  Quote: 	
		   On Jul 2, 2016, at 9:11 AM, Werner Schneider <glastar(at)gmx.net> wrote:

 Carlos there are some pictures on google for boats:

 

 https://www.fpmarine.com/Articles.asp?ID=245

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user9253

Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan

Posted: Sat Jul 02, 2016 9:35 am Post subject: Re: Switch wiring

You could try emailing team2(at)carlingtech.com for advice.

The two extra terminals could power the lamp independent of the switch mechanism.  Then it would be up to the installer to add jumper wires.  The spec sheet says, Independent lamp is Standard, dependent lamp is available.  Other than having an internal lamp, the switch could operate exactly like any other DPDT switch.  For switching higher voltages, a separate 12 volt supply would be needed for the lamp.  The lamp might be located in a fixed position and shines through fiber optics in the actuator lever.

This is all guessing on my part.

I like Eric's ohmmeter or 9 volt battery suggestion.

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_________________
Joe Gores

nuckolls.bob(at)aeroelect
Guest

Posted: Sat Jul 02, 2016 12:00 pm Post subject: Switch wiring

At 10:34 AM 7/2/2016, you wrote:

  	  Quote: 	
		  Guys



 The switch in the attached images is model LT-2561-601-012 from Carling

 Technologies, which is a DPDT switch with illuminated lever tip.

 I know that the 2 sets of contacts on each side are the DPDT contacts, so no

 doubt about their wiring.

 Now about the other 2 middle contacts, which are for the LED tip

 illumination, how are they wired? 	


   Here's the carling data sheet on that series

   of switches.



  http://tinyurl.com/jda6zop



   Looking at an exerpt we see



 [img]cid:7.1.0.9.0.20160702145139.055eaeb0(at)aeroelectric.com.0[/img] 



   Your LT2561 is two pole, three position on-off-on

   with .25" quick connects, satin chrome handle,

   red display in all three positions and a 12 volt

   incandescent lamp (so you don't have to worry about

   polarity).



 



 

 

   Bob . . .

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trigo(at)mail.telepac.pt
Guest

Posted: Sun Jul 03, 2016 2:48 am Post subject: Switch wiring

Well, I had to ask exactly because the Carling documents don't have any information about the contacts, not even a wiring schematic, as it is usual.

Thanks Werner, Eric and Bob; Now I know that the middle contacts are very simply the 2 lamp contacts.

Nice! It is already wired...

Carlos



Enviado do meu iPhone



No dia 02/07/2016, às 20:57, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> escreveu:

 	  Quote: 	
		    At 10:34 AM 7/2/2016, you wrote:

  	  Quote: 	
		  Guys



 The switch in the attached images is model LT-2561-601-012 from Carling

 Technologies, which is a DPDT switch with illuminated lever tip.

 I know that the 2 sets of contacts on each side are the DPDT contacts, so no

 doubt about their wiring.

 Now about the other 2 middle contacts, which are for the LED tip

 illumination, how are they wired? 	


   Here's the carling data sheet on that series

   of switches.



  http://tinyurl.com/jda6zop



   Looking at an exerpt we see



 <db1b41a.jpg> 



   Your LT2561 is two pole, three position on-off-on

   with .25" quick connects, satin chrome handle,

   red display in all three positions and a 12 volt

   incandescent lamp (so you don't have to worry about

   polarity).



 



 

 

   Bob . . .

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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