BHK 250 fuses


#1

Hi everyone!
I live in a place where mains are 220VAC so my main fuses must be 1.6A and 5A as stated by the manual. However for places where mains are 100/120VAC the fuses must be 2A and 10A, not 3.15A and 10A.
My question is: can I safely use a 1A fuse instead of the 1.6A?
By the way, what are the 10A glass fuses for?
Thanks in advance.


#2

You can use a smaller fuse than that specified, but it may fail more often.

Why not use the specified value?


#3

Thanks, Elk.
First of all because I’ve got a 1A spare and would like trying it.
But also because it makes no sense a 120VAC amp needing a 2A fuse and a 230VAC needing more than half of this.
By the way, the spec section in the BHK 250’s webpage states that the 230VAC version uses 1A and 5A fuses.


#4

The fuse specifications may be based in part on what is commonly available.

Typically one specs fuses at 125% of normal operating current. That is, fuse rating = (watts/volts) x 1.25.