A few places also used 10A connectors quite widely, e.g. Italy.
Ring extension load
- Thread starter skyhawker
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Wasn't 16 the new 15, like when 16A MCBs replaced 15A fuses?
It was, and (judging by the ratings of other MCBs) chosen because 16 was a 'basic' Renard preferred number.
Kind Regards, John
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Thanks for that John. I am familiar with the finer divisions used for component values, but never realised that the mcb values were the 'divided into 5' values.
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Indeed. The basic 'R5' Renard series is just 1.0, 1.6, 2.5, 4.0 & 6.3. That gives us (after rounding 6.3 to 6), the familiar MCB sizes of 6A, 10A, 16A, 25A, 40A and 63A. Perhaps more to the point, the 'R10' series includes (in addition to the above) 2.00, 3.15, 5.00 and 8.00 - thereby giving us (after rounding) the 20A, 32A, 50A and 80A MCBs (and also 3A, which one occasionally sees).
Interestingly (in terms of how this discussion started), the R10 series also includes 1.25, so a 13A MCB (after rounding) would have been a possibility - but 'they' presumably decided that it was 'not needed'!
Kind Regards, John
13A MCBs are available in the Memshield 3 range, as are several other unusual values.
It would only have been useful to the UK (and a few countries that use UK wiring accessories) so would have been difficult to get a consensus to include them in IEC 60898.
The Merlin range of values seems never ending! I've seen 1,2,3,4,5,6,8,10,13,15,16,20,25,30,32,40,45,50,63
And for what purpose would we use a 13a Mcb?
When you want to push a 1.0mm² cable to it's absolute limit?!
Arh. And ignore the regulation that 1.0mm shouldn't be used for sockets in the UK ?
Iirc
Iirc
I was thinking of a huge number of light bulbs!
Humm lol
10A is enough for lighting lol
10A is enough for lighting lol
That sounds credible but, as has been said, it has not stopped some manufacturers from producing 13A (and other 'unusual') MCBs. If the In of the MCB not mentioned in the Standard, does that preclude the manufacturer claiming compliance with it?
Kind Regards, John
How can a manufacturer claim compliance with something that isn't stated?
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