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Can I use a DPDT Toggle Switch, To switch a Transformer output from series to parallel?

Hello,
 I am working on a project were I need to use both 24V and 12V ( one at a time ). The project originally calls for a Radio Shack 273-1512 but I needed a smaller pcb though hole mount transformer for my use.

My transformer outputs 24V @ 1.5A in Series and 12V @ 3A in Parallel. Is it possible to wire up a On-Off-On DPDT Toggle switch so I may flick back and forth between the two? If so, would you be so kind as to provide a diagram. I have a feeling I am over thinking this and just need to take a step back to see the whole picture. I thank you for your help and advice in advance.

Transformer I have
-Hammond 164J24 115V
Here is a link to the data sheet. http://www.hammondmfg.com/pdf/5C008-9.pdf

DPDT switch I have
-NKK S7A-RO
Here is a link to the data sheet. http://www.mouser.com/ds/2/295/stogglesmedcap-33336.pdf

I already did an Instructable on this exact thing. Mine dealt with batteries but you can substitute them with your transformers. Here is the link:

https://www.instructables.com/id/Sealed-battery-box...

Enjoy!

kyo-89 (author) 2 years ago

After reviewing the inscrutable posted by "Benmurton" Called SIMPLE Parallel/Series Select Switch. As well as reviewing Hammond Mfg. website's ( http://www.hammondmfg.com/5CHook.htm ) I believe I have solved my question with a Yes. Would anyone care to review my drawing to look for mistakes and see If I am correct or not. Thanks.

Series and Parallel Switch - Copy.png

Looks good to me. Image one is off. Image 2 is series connection. Image 3 is parallel connection.

kyo-89 you should award yourself "best answer" :D