Electronics > Beginners

How much current can a short run of 26AWG cable support?

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Zero999:

--- Quote from: 6PTsocket on July 08, 2019, 11:59:44 am ---If we are measuring small drops, fuses are not resistance free either. Check a few out.
--- End quote ---
I just have. A simple 2A, glass cartridge fuse has a resistance of just under 35mΩ and a time delay fuse is just over double that, which is negligible, if the nominal current is 0.85A. It's better to be safe, than sorry.
https://uk.rs-online.com/web/p/cartridge-fuses/0563722A/
https://uk.rs-online.com/web/p/cartridge-fuses/6686035/

janoc:

--- Quote from: L_Euler on July 08, 2019, 01:56:46 pm ---That's why I also said use parallel wires (ie. multiple pins for the same power source.)

--- End quote ---

Ah ok. I have misunderstood that bit.

Yes, that is possible to do (and has been mentioned above already). However, if that connector is only for power, then it would make more sense to use a larger connector in the first place and avoid this hassle (and possibly save space as well).

T3sl4co1l:
Mind, for freshly mated connectors.  Get some vibration and oxidation on that, some dust or what have you, and that rating may come down a lot.

Tim

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