Guitar Amp Power Transformer 120/220V switch question

[ThePanda]

Am I over spec'ing this DPDT switch for my 5F6a power transformer?

I am wiring my guitar amp power transformer to handle both 120v and 220v. It has a universal voltage primary to do this.

Is this DPDT overkill at 17A 125VAC, 12A 250VAC?

https://www.tubesandmore.com/products/toggle-switch-carling-dpdt-2-position-terminals

 

[jaspinwall]

If you go by the usual choice for changing primary voltages, yes it's rated for amperage almost triple what the amp is capable of pulling before the mains fuse blows, but there's really no downside to using that switch either.

Here's the ratings of the switch frequently used in Marshall clones:

https://www.tubesandmore.com/products/switch-rotary-voltage-selector-modern-marshall

 

[ThePanda]

If you go by the usual choice for changing primary voltages, yes it's rated for amperage almost triple what the amp is capable of pulling before the mains fuse blows, but there's really no downside to using that switch either.

Here's the ratings of the switch frequently used in Marshall clones:

https://www.tubesandmore.com/products/switch-rotary-voltage-selector-modern-marshall

I'll look for a switch in line with those values.

BTW Do you think you can modify that SP3T rotary to be DPDT?

Do I need to use a relay?

 

[Harry Klippton]

Are you planning on using it in Europe or Australia, or selling it to someone who will?

 

[ThePanda]

Are you planning on using it in Europe or Australia, or selling it to someone who will?

Possibility of using it in South Korea (220) in the future.

 

[jaspinwall]

I'll look for a switch in line with those values.

BTW Do you think you can modify that SP3T rotary to be DPDT?

Do I need to use a relay?

AES sells this Carling switch and it will work fine for what you want to do with it:

https://www.tubesandmore.com/products/switch-carling-toggle-dpdt-solder-lugs-0

You could use the rotary and just wire up two of the switches, but that would also be overkill and you'd need to cut a 1-3/16" hole in your chassis to accommodate it. And that's not mentioning the ridiculous price.

 

[ThePanda]

AES sells this Carling switch and it will work fine for what you want to do with it:

https://www.tubesandmore.com/products/switch-carling-toggle-dpdt-solder-lugs-0

You could use the rotary and just wire up two of the switches, but that would also be overkill and you'd need to cut a 1-3/16" hole in your chassis to accommodate it. And that's not mentioning the ridiculous price.

I did some digging and will go with this one

https://www.mouser.com/ProductDetail/CK/V80212SS05QE?qs=TUQ4LsUbwV5xZByb990mUA%3D%3D