This is incorrect!
The current rating of a fuse is independent of the voltage.
The fuse blows as a result of heat, which is proportional to I squared times R. 
The voltage rating is just a guarantee that if it does blow, it won’t stay 
conductive due to an arc.

Victor 4X6GP 

> On 15 Jul 2018, at 5:21, <[email protected]> <[email protected]> wrote:
> 
> Correction: I believe that there are conditions where you would have 240
> volts on the fuse in a standard single phase 240v circuit so it's best to
> use the standard 250v fuses. Of course 250v fuses are also fine with 120v
> amp wiring but the amperage will double.
> 
> GL
> 
> John KK9A
> 
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