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Inverter Grounding and Shore Power Setup Questions

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261 views 15 replies 8 participants last post by  daklein  
#1 ·
Hi all!

I have a couple of questions, and I’m sorry if they seem basic—just trying to make sure I get everything right!

Inverter Chassis Grounding:
  • I’ve read that grounding the inverter to the chassis isn’t strictly necessary but could be a good idea?
    • I have a Renogy Pure Sine 2000W Inverter/Charger.
  • Right now, the negative post from the inverter goes to a Blue Sea Safety Hub and then to the chassis ground. Is this enough?
    • If not, where do I connect the ground wire on the inverter? I don’t see a dedicated ground terminal on it.
Shore Power Configuration:
  • I’ve run shore power into the inverter on the input side, but I’m unsure what to do next.
  • Do I need to run anything from the output side since it feeds into the safety hub?
    • Where do the wires (I have yet to install) go from here? Into a separate breaker box for AC?
    • Or do I need to run the wire out at all since it is hooked up to the Blue Sea Safety Hub?
  • I feel like I’m missing something simple!
Thanks so much in advance for any help or guidance!

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#2 ·
I tried finding the manual for a renogy 2000w inverter/charger but all I found were 3000w inverter/chargers on their website.

 
#3 ·
Yes, the manual for the 2000 and 3000 are the same. I have read through it and it just says it should be grounded…but nothing more. I am still not sure where to connect into on the inverter.
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nor does it talk about what the outgoing AC should connect into.
 
#7 ·
Pg 10 through 14 discuss grounding and wiring. In my van the inverter is mounted on a metal frame which is bolted to the chassis so I didn't bother with a separate wire. The inverter chassis to van is simplest/safest. Going through the safety hub should be fine, electrically but might not cover some obscure faults.

Fault analysis is tough: you have to think of all the possible failures, electrical and mechanical and analyse where the current to going to flow and what is going to melt, etc. Best to follow the suggestions in the manual.
 
#8 ·
Pg 10 through 14 discuss grounding and wiring. In my van the inverter is mounted on a metal frame which is bolted to the chassis so I didn't bother with a separate wire. The inverter chassis to van is simplest/safest. Going through the safety hub should be fine, electrically but might not cover some obscure faults.

Fault analysis is tough: you have to think of all the possible failures, electrical and mechanical and analyse where the current to going to flow and what is going to melt, etc. Best to follow the suggestions in the manual.
And pickup a decent Multimeter with amp clamp capable of DC measurements. You will use it often for troubleshooting and amusement.

When I build a system, they have to learn how to use a multimeter for basic troubleshooting assistance. If they don't have a proper meter, I build that into my price.
 
#9 ·
This is what I purchased. Not great, but perfectly adequate. I think understanding pg 10-15 of the manual is worthwhile to have confidence in the wiring.

 
#10 ·
The outgoing AC should go to you AC loads/outlets through an AC breaker box. Your wiring diagram doesn't seem to show any AC loads. Is that a correct interpretation?
No, I plan to have a couple of items that might need AC. Do you have a suggestion for a breaker box? And do I need a fuse for it as well? And then do all of the AC outlets feed off of it?
The outgoing AC should go to you AC loads/outlets through an AC breaker box. Your wiring diagram doesn't seem to show any AC loads. Is that a correct interpretation?
No, I will have some AC stuff, but very little. Does this diagram look correct?
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