question

lstyles avatar image
lstyles asked

What size wire for mppt 100/50 ground?

I plan on grounding this mppt to the negative bus bar which is connected to chassis ground. What size wire do I need from mppt screw on side to the negative bus bar?

MPPT Controllers
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2 Answers
wkirby avatar image
wkirby answered ·

Use a wire which is capable of carrying the fault current and allow circuit protection devices to activate.
Eg. If your MPPT is protected by a 60A fuse, then the ground wire must be able to carry this current until the fuse opens.

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lstyles avatar image
lstyles answered ·

Thanks! That makes total sense!

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Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.