New 10kw NHX AIO From Watts247
- Thread starter Kornbread
- Start date
Manual recommends 8gauge, and honestly, it was hard enough to get 8 in there. I'd feel better with 6gauge but not sure 6gauge would fit in the box and insert securely into the spring loaded lugs. If 6gauge did fit, it would definitely be a struggle. My fingers are all cut up trying to fit 8gauge wire into that tiny space. A larger lower wiring box would be a huge plus.
I didn't find much when looking for a 300amp breaker. Your search ability is better than mine.
Kornbread,
I've joined the N3H-X10-US club. On its way. This will be an 11.7 KW array with one or two EG4 wall batteries. Not sure if the batteries will talk to the inverter or not, willing to go without battery comms.
I am VERY interested in making Solar Assistant work so it can monitor the inverter and the batteries. Have you done so? Any guidance?
Mike C.
Had to look up n3h-10x. Guess it was a typo. Anyhow, no I have not hooked up SA to the new nhx inverter yet, but 'should' have the nhx, or at least one of the nhx, up and running this weekend. Knock on wood. Anyhow, I hope a new license will not be required with my old version of SA that's been running on the growatt the past couple years, and it's as simple as plugging in the new inverter, changing a setting in SA, and done. You will need a special cable adapter for the inverter to the pi.
Art's Solar
New Member
Hi,
You will need an adapter cable from Watts247. Search (solar assistant) on their website.
Ian also posted on youtube how to hook it up. I should have mine this weekend so I can get it going.
Thank you
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The Amensolar N3H-X10-US is what Watts247 is selling. He calls is the NHX-10kW, but the certifications have the Amensolar model numbers.
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Cool.
I am on a quest to find an appropraite connector so one can use the supplied Wifi port for SA or move the Wifi module to a more advantageous location with an extender cable. Watts247 has no data on the connector, and I contacted Amensolar about it, but they haven't been helpful so far. The Wifi data logger is made by Solarman:
Stick Logger | Solar Data Logger - SOLARMAN
SOLARMAN PV stick logger supports GPRS, WiFi, 4G, stick logger can run a long-term and efficient monitoring of PV system.
www.solarmanpv.com
The connector is one of these two:
I think it is the "small aviation head". There are a number of things that look like that, so I would need precise measurements of the connector to find a mating part. Here is the best picture I have of it:
From what I can gather, you need a USB to RS-485 adapter and then to make connections to at least RS485 A/B and GND. It sure would be nice if this just plugged where the Wifi dongle was.
I also wonder if it can be plugged into this internal port:
Seems like that would be the same data stream, no? Something comes plugged into that port so it may not be available.
The documentation of these ports and functions is lame, so one is left with trying stuff.
Mike C.
As an electronics engineer, there are a number of issues I have with this cable strategy.
First, he taps the A/B lines of the RS-485 signals on the RJ45 but has no ground pin. He leaves that floating. This is bad. RS485 has a limited common mode voltage range (max +/- 7 volts difference between ground potential at driver and receiver) and if that is exceeded, you could damage the adapter, the inverter, or both. It can also lead to bit errors on the communication. He has basically relied on some other ground path between the Pi and the inverter not in evidence in this video. The correct fix for this is to run a third wire from the ground pin in the RJ45 adapter to the ground pin on the board connector.
Second, the box connector he is using is not the right style to fit and stay properly on the PCB connector. With fans, it may vibrate off. A better approach would be to find the right connector for the PCB connector. I'd guess this is a Hirose DF3 style, 2 mm pitch, but I'd have to confirm that more directly.
Third, that RJ45 breakout adapter has the potential to short to other stuff inside the active circuit area. The big shielded RJ45 scares me for this reason. You REALLY don't want that to happen.
Fourth, breaking open the interior cavity to install a cable seems crude.
He might not be able to find that connector, but I bet I can, and if so, all will be better for everyone.
Mike C.
With the better picture from his video, I found a possible candidate:
1.03US $ 25% OFF|PY07 Z108 Waterproof Connector Docking Plastic Aviation Plug Bayonet Socket IP67 Butt Connector 2pin 3pin 4pin 5pin 6pin 7pin| | - AliExpress
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I don't have the inverter, so someone would need to take measurements to see if this looks close, and if so, order some and try them out. I'm reaching about 90% confidence on this one due to small details that match, like the notch in the hex of the bulkhead connector, which is not a common thing to see;
These connectors are apparently on Megarevo inverters as well since they take the same Wifi dongle, or so it seems from what I can find.
Mike C.
I've ordered a few sets, should be here in 2 weeks. I will then have the inverter as well and can report success or failure.
Mike C.
Art's Solar
New Member
Hey Mike, I just measured the plug on the solarman wifi dongle. It is the bayonet style you have pictured.
Thanks, Art
Rebadged Amensolar, ok, now I see where the n3h came from.Wholesale N3H-X10-US 10KW 48V Split-Phase Hybrid Inverter Amensolar Factory and Supplier | Amensolar
Looking for a reliable Hybrid Inverter? The N3H-X10-US 10KW 48V Split-Phase Hybrid Inverter from Amensolar is the perfect choice for your energy needs.
The Amensolar N3H-X10-US is what Watts247 is selling. He calls is the NHX-10kW, but the certifications have the Amensolar model numbers.
View attachment 213202
Wholesale N3H-X10-US 10KW 48V Split-Phase Hybrid Inverter Amensolar Factory and Supplier | Amensolar
Looking for a reliable Hybrid Inverter? The N3H-X10-US 10KW 48V Split-Phase Hybrid Inverter from Amensolar is the perfect choice for your energy needs.
It would be nice if you can get a more direct/safer way to connect to the pi. For now guess I'm stuck with the adapter. Keep us updated please.
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Might be more appropriate if we said re-decaled. He can't change the model number or the certs no longer apply. The sticker (badge) on the side of the device should say Amensolar N3H-X10-US. If it doesn't, then there's a problem with showing that the certs and the unit go together.
Will do, looking hopeful.
Mike C.
Post in thread 'Connecting Solar-Assistant to EG4/Megarevo 8kw' https://diysolarforum.com/threads/connecting-solar-assistant-to-eg4-megarevo-8kw.67758/post-867033
Do not need all these circuits yet, but ran enough wire in the conduit and have enough circuits to grow over time without a lot of headache. Over 1000' of 10gauge wire and looks like I'm going to need a little more. Amazing how much smaller the pv wire gauge can be when the voltage increases significantly.
Work in progress ...
Work in progress ...
Do software changes ever have an affect on ul certs?
Hedges
I See Electromagnetic Fields!
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Plastic bushing on conduit at the top, but not the one bottom left.
For metal conduit (looks like metal nipple) I think my inspector liked the toothed nut I used.
It should, but I think manufacturers decide what software and hardware updates trigger need for new UL testing. Certainly UL-1741 vs. -SA vs. -SB. Updates could break compliance.
Among the PG&E documents, think I read we may need to show that our inverter has a particular software-based function. I think that means I may need to update firmware on some earlier date units, also select correct options, in case they ask to see it on display.
Art's Solar
New Member
Hi Mike, The placard on the side does say Amen solar N3X-H10-US.
Also here is the pin out for the wifi plug. I hope you can find the correct ones, and pass along that information
Thanks, Art
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I wonder about that, too.
I think this is a gray area which no one should ask about lest we get more rules and limitations.
It is pretty clear that if units are locked to the version of software they certified with, we'd have a lot of bugs that wouldn't get fixed.
Mike C.
