AC Distribution Panel

[sjvicker]

I'm fortunate that in my area homeowners are allowed to do their own electrical and from a conversation with the permitting authority they seem pretty awesome to work with so far. Basically it seems like they're happy your doing permits and trying to do the right thing so they are willing to point out issues and correct permits and plans on the fly as a project progresses. That said, I want to do as much research as possible and try to pass my inspections on the first go.

In my "power" shed I'm planning to use a 200amp panel as an AC combiner panel then supply power to a future shop and house. This is a common method of wiring in inverters but I haven't found a good example of the correct way to split this power out to 2 sub panels. A panel with terminal blocks such as these from Automation direct seem like they'd work with jumpers but I'm not sure if this is the correct way to do this or not.

What is the correct way to do this distribution?

 

[wyliesdiesels]

Where does the PoCo feed come in at?

You want a way to connect the shop and house panels to the combiner panel? Just use a gutter and either split bolts or polaris connectors

 

[sjvicker]

Where does the PoCo feed come in at?

You want a way to connect the shop and house panels to the combiner panel? Just use a gutter and either split bolts or polaris connectors

There isn't a PoCo feed. There will also be a generator but that is controlled by the inverters and charges the batteries (not shown).

I'm already planning a gutter that runs under the inverters and combiner panel.

Polaris connectors look to be exactly what I'm looking for! Thank you!

 

[mm08822]

Having the entire plan would be much more informative. Are there 4 EG4's and each one feeds its own seperate 50A cb?

What are the loads in house and garage?

You can also use PDB's in an enclosure for simpler connections. Mersen seems to be reasonable.

 

[sjvicker]

That PDB-22-350-3 is exactly what I was looking for. The Polaris connectors are cheaper but I really like the idea of having a dedicated panel for this connection. I kept finding terminal blocks and didn't know the correct term to search for.

To answer your other questions. Yes there's 4 EG4 string inverters with each feeding its own 50A breaker and I can go up to 16 inverters if I find that is a constraint. I have no idea of the actual loads because this is a new build but I am sure I wont need more than a 200amp panel in the house and a 200amp in the shop with a total draw between the two buildings of 200amp.