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I'm trying to work out how much current is drawn on the 240V side of our power supplies when for example you are charging at 6A on the 12V side.
From my rough calculations, on the 12V side it would be 72W, so therefore on the 240V side it is approx 0.25A. Just wondering how many people can safely charge through a 13A socket ![]() |
#2
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Well my 8.5amp charger is equiped with a 5amp fuse if that is any help?
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who knows who cares ![]() |
#4
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good psu's have thier max amp draw on the rear or in the tech details
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD |
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#6
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6A at 12V is 72W. 72W at the 240V end is 0.3A. Isn't it as simple as that?
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#7
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only isnt the uk 230 volts?
http://www.gbaudio.co.uk/data/mains.htm
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD |
#8
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ash, see above
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Nortech is ACE! |
#9
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I'll test my power supplys with my clamp meter and let you know what my psu pull's. |
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OK, perhaps the next simple answer is "as many as it takes to blow the fuse?" If it's any help we run two pit tables of 10 people each at 12th Nationals off one 13A socket. Each person will have at least one battery on the go, sometimes two, sometimes a soldering iron or several and the odd laptop charger.
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#11
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ok, my psu and charger, charging at 5 amps is pulling 0.38A from the mains.
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#12
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cheers guys, looks like 0.4A is a good enough figure, maybe even use 0.5A just to be on safe side.
Just, looking to make sure we don't overload our circuits at the club, would rather control how many can plug in than trip fuses etc. Also looking at supplying power outdoors, so trying to calculate how big a generator is required to get average club numbers all powered up. |
#13
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Remember your wall sockets in the hall should be on a 32 amp mcb, it's just 13 amps per plug top
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