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Author Topic: Max current in solderless breadboard / jumper wire  (Read 2120 times)
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Paris, France
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Dear all,

I'm currently working on some higher power project than my usual low power stuff.

I'm therefore wondering what's the maximum current the classic solderless breadboard might handle ? I found some answers on google about 2 to 5 A.

But concerning the small jumper wires, what would be the max current ? I need to work between 300mA and 500mA, would it be fine ? If not what kind of wire should I use for such a project ?

Thank you for your insights !

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A 26 Gauge wire is 1.3 amps enclosed and 2.2 amps open air 28 is almost a amp

Manchester (England England)
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Brattain Member
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It is not the wire that is the problem but the resistance of the joint you make with the wire pushed in the contact.
If you are grown up enough to switch half an amp you are grown up enough not to use solder less bread board.

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Shannon Member
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Using several wires in parallel both increases the current handling and reduces the chance of connection failure due to over heating (if one of the contacts is a bit oxidized and has high resistance the current will prefer to flow via the better connections, thus preventing too much temperature rise in the dodgy contact - which leads to vicious circle of heat/oxidation/resistance/more heat)

[ I won't respond to messages, use the forum please ]

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