Can MC4 12 AWG be connected to MC4on a 10AWG?

[SecurityiQ]

I have 2 movable 400 watt panels that have MC4 12AWG wanted to know if I can connect 50ft of MC4 10AWG So I don't loose to much power.
Or should I stay with MC4 12AWG like the panels already have?

Thank you all for your answers....!

 

[sunshine_eggo]

I have 2 movable 400 watt panels that have MC4 12AWG wanted to know if I can connect 50ft of MC4 10AWG So I don't loose to much power.

Youbetcha.

Or should I stay with MC4 12AWG like the panels already have?

No reason to do so other than saving money.

If the panels are in series, then it may not matter much either way.

12awg, 80Vmp, 10A Imp, 50 ft:

Voltage Drop Calculator

This free voltage drop calculator estimates the voltage drop of an electrical circuit based on the wire size, distance, and anticipated load current.

www.calculator.net

1.99% voltage drop.

10awg is 1.25%

If in parallel:

12awg: 7.94%
10awg: 4.99%

If your controller has a Voc limit of >145V, 2S should be fine.

 

[SecurityiQ]

Thank you guys for your help ? ?