Hardware Thread, Fuse rating on music centre in Technical; We've lost the lead (surprise surprise) to our portable Carlsbro wanderer music centre. I have lots of spare kettle leads ...
29th March 2012, 12:35 PM #1
Fuse rating on music centre
We've lost the lead (surprise surprise) to our portable Carlsbro wanderer music centre. I have lots of spare kettle leads but can't work out what fuse to use.
Nothing in users guide, but under the socket on the unit it says
Fuse rating T2ah 250v 210va max
Clear as mud to me, 5, 10 or 13 amp?
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29th March 2012, 12:38 PM #2
None of the above! You need a 2A fuse. It's telling you that you need a slow-blow fuse which allow momentary spikes above the rated value.
Originally Posted by chrbb
Ask for a T2ah fuse.
Last edited by jinnantonnixx; 29th March 2012 at 12:40 PM.
29th March 2012, 12:41 PM #3
That to me says it has an internal 2a slowblow, so I'd put a 3a or 5a in the plug.
29th March 2012, 12:43 PM #4
You're quite right, Marci.
The question was about the plug, not the appliance. Ignore my reply.
29th March 2012, 12:44 PM #5
Lol, found it being used with a 13 amp fuse.
29th March 2012, 12:47 PM #6
3 amp for appliances rated up to 750 watts
5 amp for appliances rated over 750 watts up to 1.2KW
13 amp for appliances over 1.2KW
You can get smaller fuses than 3 amp but they aren’t very common and not so easy to get hold of.
210va = your appliance is drawing less than 1 amp so put a 3 amp fuse in the plug.
29th March 2012, 12:54 PM #7
Until I get to the shops then can it be used with a 5amp fuse in the plug. (sorry really dim day)
29th March 2012, 01:10 PM #8
Yes thats fine.
Originally Posted by chrbb
Your equipment is protected by an internal 2 amp fuse which will blow before the one in the plug does if a fault develops. The fuse in the plug is only really protecting the cables before the power gets to the internal fuse incase it gets damaged in someway.
Because of the internal fuse the fuse in the plug is not as critical although it is good practise to have one rated as low as possible.
Note: Fuses are generally there to protect the equipment from further damage if a fault develops, having the wrong rated fuse can increase the risk of a fire starting as the power drawn if a short develops can exceed the ratings of the cables / components. The mains fuse offers little protection to people from electrical shocks as they don't blow fast enough and the current ratings are too high which is why we use RCDs in consumer units these days which trip at around 30ma.
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