4.6kw Water heater on a 10amp fuse??!!

Discussion in 'Electrics UK' started by Multiplex, 28 Apr 2006.

  1. Multiplex

    Multiplex

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    How come I am able to run a 4.6kw instant water heater on a 10amp fuse in the fusebox?? I can't understand how this works, even when the heater is running for five minutes and has been used on and off for the past 10 days!?

    Simon.
     
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  3. RF Lighting

    RF Lighting

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    What sort of fuses do you have in your fusebox?
     
  4. Multiplex

    Multiplex

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    Stupid German fusebox which only takes 10amp fuses.

    Simon.
     
  5. securespark

    securespark

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  6. RF Lighting

    RF Lighting

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    Can you post us a picture? How old is it? Does it have a brand name on it? Are you sure it only takes 10A fuses or is it just that this is what is currently fitted? I have never seen a fusebox which only takes one size fuse.

    Rob
     
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  8. JohnD

    JohnD

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    I wonder if it is just the fuseholder?

    When I was in the telecomms trade we used a lot of 10Amp racks, like LAN cabinets, with lots of pieces of equipment in, oddly, they have one 10-Amp MCB feeding a row of 10Amp cartridge fuseholders on the same rail... seems a bit odd but I suppose they rely on disconnection time to discrimiate.
     
  9. Spark123

    Spark123

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    I take it by the other thread this German fusebox is in Germany?
     
  10. Multiplex

    Multiplex

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    Yes it's in Germany, sorry I meant to say that as well.

    I'm more curious as to what the pitfalls are from continuing to run this water heater through this fuse. Should I just leave it?

    Simon
     
  11. RF Lighting

    RF Lighting

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  12. Multiplex

    Multiplex

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    That's a great reference, thanks for that. I guess I had better see how I can change it to a 20amp fuse.

    Simon.
     
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