question

goboating avatar image
goboating asked

Victron Autotransformer wiring options

Boat currently has 120 30amp service

needs 220v for new ac

1 option ( I’m told) is to pull 120v from a breaker on main panel

to the victron autotransformer and the 220v out to the ac unit


2 option

ac out 1 from Quattro to autotransformer wired to 120/120/220

split then 120 to A side of current panel 120 to B side and the 220 to a sub panel with breaker for the ac unit.


is one way better than the other.?

im concerned about option 1 because I can’t find anything like that described in any victron manual


Autotransformer
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3 Answers
wkirby avatar image
wkirby answered ·

Option 1 would look like this:

1620454998011.png


That image is taken from the datasheet here:
https://www.victronenergy.com/upload/documents/Datasheet-Autotransformer-32A-and-100A-EN.pdf

Instead of the source being an Inverter / Charger as depicted, it would be the breaker in your panel. Does that help you?


1620454998011.png (36.6 KiB)
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goboating avatar image
goboating answered ·

Ok, but if I do it option 1


what about ground relay in the inverter?

it says it needs to be used?

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Harold Lopez avatar image
Harold Lopez answered ·

Hi,


I am having a similar issue. I am trying to figure it out right now, but i am using this diagram. AT-1-split-phase-240V-to-120-240V-with-Quattro-240V.pdf


at-1-split-phase-240v-to-120-240v-with-quattro-240.pdf (529.3 KiB)
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