What amp fuse should I use for a mains powered radio?
It is a mains powered radio, over 60 years old and still in working order. (UK electical system)
- ?Lv 75 years agoFavorite Answer
ideally 1 amp . but a 3amp is fine.
- spacemissingLv 75 years ago
Use a fuse with a value about 10% higher than the current rating of the radio.
If the power rating for the radio is given only in watts,
divide that number by the voltage.
Example: 230 volts 45 watts
45 watts / 230 volts = 0.19956522 amps.
You would want to round that up to 0.2 amps (200 mA) for convenience.
0.2 X 1.1 = 0.22.
The nearest common fuse value is 0.25 amp, which should be good enough.
If the fuse often blows immediately or soon after you switch the radio on,
change it to the next higher common value.
- 5 years ago
Hi a 5 amp fuse would be about right.
- BobLv 75 years ago
I would try a 1 amp fuse. If that doesn't work then I wouldn't go any higher, because the whole thing will be chucking out so much heat it would be a fire hazard.
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- WhoLv 75 years ago
just something to bear in mind
the fuse is not there to protect you or the radio
its there to protect the mains cable
(it dont take much current at mains voltage to kill you or the radio, far less than the fuses normally used in the plug)
If you can get one - a 1A
if not then a 3A
- charcindersLv 75 years ago
1 or 2 amps. Certainly no higher than 3A.
- JohnLv 75 years ago
Its says next to the fuse holder.
- 5 years ago
I like not that I , every time speak about variation .
- Lee26Caloo秦君子蘭Lv 75 years ago
FUSE RATE WAS MARKED ON ITS BODY ! READ IT .
- FrancisLv 75 years ago