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The MultiPlus 2kVA 120V includes a connection (+) for charging a starter battery. That connection supplies 1A to the starter bank.
When I am calculating the appropriate conductor size, do I assume that the current in the circuit is just 1A?
Is it therefore reasonable that I would use an 18AWG/1mm² cable for my TR-charge cable or have I missed something?
Yes. Per awg charts, 26awg would work too, depending on length of cable run.
Thanks @snoobler ! It looks like the wire size calculator that I was using does not make recommendations below 18 AWG but looking at the charts I can see how you came to 26AWG (cable run length permitting).
I will go with 16AWG. It will be oversized for ampacity and voltage drop but according to the ABYC 16AWG is the smallest gauge that I should run outside of a protective sheath.
Thanks for your help!
