Shunt Wiring Diagram

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hydrad asked Jul 29, '22

Shunt Wiring Diagram

Hi have never installed any solar work or any kind of wiring for that matter, so I am wondering if my wiring schematic with a shunt is correct. Or, is therer anything else that I should include in the layout.

None of the Victron schematics show a ground, so I was not sure if I need to ground the system. I am more concerned with small charges that might harm sensitive equipment than I am with electrocution.

It is a 24V system with some devices running at 5V after a step down buck. None of the individual connected devices will be pulling more than +/- 0.2 amp. Do I need to ground any specific devices, or install any fuses? Any help you can provide would be greatly appreciated.

SmartShunt solar schematics

layout.png (841.5 KiB)

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Answer 1 · 2022-07-29T21:32:17Z

rikhf answered · Jul 29, 2022 at 09:32 PM

If the devices need to be grounded I don't know but don't put the minus to ground. Instead connect the solar panel's frame to ground.

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Answer 2 · 2022-07-29T22:30:01Z

hydrad answered · Jul 29, 2022 at 10:30 PM

Thanks for the help. I will ground the solar panel fram and pole, and the metal enclosure for the equipment and battery.

Is it ok to put the battery in the same enclosure as the equipment. It is a Lithium Ion NMC battery. The metal enclosure will be closed up except for a fan opening on top and some vents near the bottom. I will have a datalogger and a Raspberry Pi in the enclosure. The sensors will connect to the enclosure through long cables.

Outside temperatures in this remote location can get up to 115 F during the peak of a summer heat wave. Would that be a problem for the battery?

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