125 volts alternating current is about what you get from your wall socket in
your home. 20 amps at 120 volts = 2400 watts. However 20 amps at 12 volts only
= 240 watts. It doesn't matter if it is ac or dc. amps is amps. volts times
amps = watts. So at 120 volts a 20 amp switch could run a 2400 watt amplifier
but at 12 volts that same switch could only be used for a 240 watt amplifier.
The voltage rating on the switch is only an indicator of the maximum voltage it
should be used on..
Does this help?
Chuck Robbins wrote:
> I recently looked at some switches and something definitely caught my eye. I
> saw switches that were Xamps at 125vac.
>
> What is 125vac? 125 volts a/c power?
>
> Would a switch rated at 20amp at 125vac work in the place of a switch rated
> for 20amp at 12 volt?
>
> So much to learn. So little time ;-)
>
> Thanks,
>
> --
> Chuck Robbins
> '99 Dakota Sport
> www.intense99dak.com
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