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Quattro 48/15000 grounding Question for AC-In 1, 2 and AC-Out 1, 2

Dear Community,
I am about to wire my 3-Phase Quattro-15k-Setup and did not find the required answer in the Manual (also pictures googled... did not lighten things up yet)


- ESS-Setup is planned with a coupled grid, but no Generator (yet, maybe in future)
- Grid delivers L1,L2,L3 and a PEN!
- PEN is connected to earth of the Building and splitted into PE and N from there onwards.

So far so good... from there onwards I want to connect my three Quattros 15K, but I am not sure how to wire the "four" grounds of each device (in total 12 Grounds-Connectors)...
Each Q-15K has...

1) a Ground at Connector "J3"
Q: ? --> Only "Input" for AC-1 and with "Building-PE"

2) a Ground at Connector "J6"
Q: ? --> "Input" for AC In-2 or "output" for AC Out-1

3) a Ground at Connector "J11"
Q: ? --> "Output" for AC Out-2 ?

4) a Ground at the Enclosure underneath the connection-Area
Q: ? --> Most probably intended to be connected to the "Building-PE"?

Probably the essential Question is: Is PE somehow "switched" (and needs serial connection in which way), what kind of makes me nervous..., or can PE`s (1,2,3,4) just get connected in parallel? I don't get it yet... and I did not find a picture showing/explaining the Situation for the 15KVA-Model...

I probably need advice from someone understanding the internals of the device... 100%


Cheers, Daniel

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Hi All.

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rob-glazier asked
rob-glazier edited ·

1 Answer

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2 Answers

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seb71 answered ·

5 Answers

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1 Answer

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Image Caption

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snoobler commented ·

3 Answers

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Matthias Lange - DE answered ·

1 Answer

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karlsvan answered ·

2 Answers

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Your kind help will be higly appreciated.

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tc-shark commented ·

3 Answers

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1 Answer

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scraggs asked
scraggs commented ·

1 Answer

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kevgermany answered ·

1 Answer

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sparky27 asked
shaneyake answered ·

1 Answer

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It's wired via dual 6mm cable to an Anderson plug on my Isuzu. Then is connected along with an MPPT to a lithium battery bank.

When I connect the DCDC tr smart, it turns on, the Bluetooth light starts flashing and I can connect to the unit.

It will come on to charge for a few seconds and then drop out, the input voltage drops to around 6 volts.

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Bruce Johnson asked
Bruce Johnson edited ·

1 Answer

Maximum length for VE. Can

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shaneyake commented ·

2 Answers

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Luke Rhodes asked
Luke Rhodes answered ·

1 Answer

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I am deciding to purchase

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The battery connection terminal is listed a being for 16mm2 or AWG6 in the manual.

Could the manufacturer or someone that is capable of precise measurement please advise what is the actual size of this hole.

What is the precise size of the battery input terminal ?

Mathematically it has to be bigger than 4.52mm D

To accommodate 16mm it is probably at least 5.5mm D (cabac cable lugs have a 5.5mm hole to insert a 16mm cable for example)


Can it fit a 6mm D copper stalk ?


Can it fit a 7.7mm D ferrule ?


Yes I am trying to use 25mm cable for 'reasons' being that is the cable I have got already.

No I don't want a stud with a 25to16 tie tail.- Looks rough to me and I'm not keen on extra connections joints and hardware just because Victron didn't think to put a 6,8, or 10 mm terminal stud on this item.

Any help much obliged.

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plipaus answered ·

2 Answers

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klafleur1 asked
Mike Dorsett answered ·

1 Answer

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jsheehan asked
cristimv edited ·

1 Answer


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