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where do I find the current rating on a choc block?

Discussion in 'Electrics UK' started by henry1, 20 Jan 2014.

  1. henry1

    henry1

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    I have some old ones lying around and can't find the rating on them. Can't use them then? How can you tell if it's 20A or 30A rated?
     
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  3. swampy2

    swampy2

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    Picture will help.
     
  4. henry1

    henry1

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    It's just a plain white/transparent choc block. Nothing special. And I can't find anything ending with an A written on it.
     
  5. wingcoax

    wingcoax

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    You won't find a rating on most choc blocks. Approx what size is the hole in the connector block?
     
  6. henry1

    henry1

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    well a 2.5mm T&E cable fits in comfortably. The choc block is small enough, aren't they all?
     
  7. AndyPRK

    AndyPRK

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    sounds a small one then.

    What were you thinking of using it for ?
     
  8. henry1

    henry1

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    lighting circuit or rings main, depending on rating but it looks like I will never know. I'll probably use crimping for the rings main as a 30A choc block is much more expensive in comparison.
     
  9. ricicle

    ricicle

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    For the price of them just buy some new ones that you know the rating of.
    Just use the old ones for those occasions where you might make ends safe in an enclosure (no current carrying)
     
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  11. Johnmelad

    Johnmelad

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  12. PrenticeBoyofDerry

    PrenticeBoyofDerry

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    There a number of differing sizes of choc blocks, you will not see a rating printed on them, it's much a case of commentators eye. You gets used to using them and tell just by looking if they are suitable.

    It can be debated if crimps are cheaper than choc blocks, as you will need to purchase a crimping tool to make the joint and to do this joint securely you would want to heat shrink it also, which would require heat shrink sleeve and a heat gun.
     
  13. henry1

    henry1

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    Here's a picture of the size then. What do the experts reckon is the current rating?

    True, you do need a few tools for crimping but in the long run it works out cheaper. I plan to use one of those cheap ratchets and a hair dryer for the heat shrink. I wouldn't mind buying a proper ratchet but not worth it for a one-off job. What do I do with it afterwards? Just sit and take space, gather dust...
     
  14. Monkeh

    Monkeh

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    [​IMG]
     
  15. flameport

    flameport

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    15 amps.
    It's also of the type which melts and deforms when it gets hot.
     
  16. EFLImpudence

    EFLImpudence

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    I keep saying it - solid conductors should not be crimped.

    Least of all by someone who doesn't seem to care.
     
  17. Monkeh

    Monkeh

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    There is that, too.
     
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