Sunsynk 5kW Inverter + Sunsynk 5.32kWh Battery Full Wiring

[Marksmith4x4]

Hi All,

My first stab at wiring my system.  I will update this post with the latest version of this diagram as I learn more.  Hopefully this will help the next person.

This is where I need your help - To learn more!!!  Please critique the diagram and point out any mistakes I have made.

Wiring diagram made using Drawio

• Feel free to reuse in your own project
• The software is free - available @ https://www.diagrams.net/
• I have attached a jpg version and the drawio version for you to use in your own project
• Check back to see if version number changes to see if you have the latest

Updates

• v1.2 Updated EN Bridge (hopefully correct)

 

 

WireDiagram_v1.2.drawio

Edited March 6, 2023 by Marksmith4x4
v1.2

[PowerUser]

You need to change the "AC Disconnect Inverter" to a "Changeover switch" which can bypass the inverter and supply the Sub DB directly from Eskom in case that's required - e.g. inverter fault, repair, etc.

[Marksmith4x4]

3 minutes ago, PowerUser said:

You need to change the "AC Disconnect Inverter" to a "Changeover switch" which can bypass the inverter and supply the Sub DB directly from Eskom in case that's required - e.g. inverter fault, repair, etc.

Thanks - that's probably a good idea - never thought of that.

[Marksmith4x4]

Question around the EN-Bridge:

Sunsynk manual states: "Do not connect this terminal [PE] when the neutral wire and PE wire are connected together."

Does this mean that I need to remove the load PE connection completely?

OR

Have a second contactor that only passes PE on load when ATS is NOT engaged?

Edited March 6, 2023 by Marksmith4x4

[Marksmith4x4]

Question around the EN-Bridge Continued ..

Based on the manuals instruction then this should be correct?

 

[Marksmith4x4]

1 hour ago, Marksmith4x4 said:

Question around the EN-Bridge Continued ..

Based on the manuals instruction then this should be correct?

 

Scratch that - Removed load PE + Passed PE directly through + Bonded load N to PE

[Marksmith4x4]

Found a simple document for EN Bond.  In case someone needs it - attached.

SS EN Bridge.pdf

[Marksmith4x4]

If there are any qualified electricians that read this - I would love to have your feedback on DB board wiring.

Would it pass SANS 10142 inspection?

[Marksmith4x4]

Ok .. after much back-and-forth .. here is my almost final wiring:

[McGuywer]

@Marksmith4x4 Thank you for sharing this.

I am busy with my DIY solar project and your diagram will certainly assist. I am "lucky" as all my loads will be on essential.