FUSE Question...Very Confused Please Help !

Sounds to me like it wants you to use a different sized fuze when you switch to 110 v. This makes sense since for the same power, current doubles.

Voltage is pretty much irrelevant on a fuse so you can still use a 250v fuse in a 110 system and indeed, that seems to be what the first sentence requires.

So my thought would be to use a 250V rated fuse of 5 amp, slow blow.

Which is what is in it.

Did you blow a fuse?

Jerry

@rocky1313

From page 6 of owner manual:

V

S

– Mains Voltage Switch (12)

VOLTAGE SELECTOR

The Penta 5.1 amplifier can be used in all

countries and is good both for 110/115 and

220/230 V. Before the first operation, please

make sure that Mains Voltage Switch is set to

the value accepted in your country.

rocky 1313 said:

#1. AC 230:S2.5A

#2. AC 110: S5A

I have it set to #2 setting ....AC 110 : S5A .......... Correct for US.

 

 

I would use the 250 volt / 5 amp fuse as the current doubles when dropping to 110. You can buy Bussman replacements on Amazon (250v/5a)- $6 bucks for a five pack. 

what they said.

You have to be careful because equipment voltage rating is different from actual wall voltage. The fuse size is determined from the transformer power rating using the equipment rating and then the wall voltage: 230V x 2.5A = 575VA Since you are using US 120 volts, the amperage is: 575VA/120V = 4.8 amps So the 5-amp fuse is correct.