Using 230v Transformer with 120v Mains

[Phostenix]

Sorry for the simple question, but I've done quite a bit of searching around & haven't found what I'm looking for....

If I have a power transformer that is labelled with a 230v primary & 46v-0-46v center tap secondaries, can I assume that it is useable with US 120v mains? The output will instead be more like 23v-0-23v, right? Does the current capacity of the primary go up & the secondaries go down in this scenario? If there's a link that you can point me to, that's good to. Thanks!

 

[paulb]

Yes, it should be usable. The current capability is probably limited by its windings so in general won't increase - thus the transformer VA rating would be halved.

 

[Spiny]

My understanding is it will work with reduced output voltage.

However you must not exceed the rated output current. If it is 2 amps at 46 volts then 2 amps at 23 is the max. This is down to the guage of wire used for the windings.

 

[luka]

My understanding is it will work with reduced output voltage.

However you must not exceed the rated output current. If it is 2 amps at 46 volts then 2 amps at 23 is the max. This is down to the guage of wire used for the windings.

I think that is right