FUSE Question...Very Confused Please Help !


I have a Ceratec Penta Amp ...Made in Germany.

The installed fuse that came with the unit is rated @ 250 Volt / 5A

The Fuse Holder which is under the AC plug states "USE ONLY 250 Volt Fuses."

On back of Amp there are a choice of two   fuse ratings:

#1.  AC 230:S2.5A

#2.  AC 110: S5A

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

I am confused. Is this fuse correct ?

Thank you

 

 

 

 

 

 

rocky1313

@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. 

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.
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