MPP Solar LV2424 kicks butt!!!

[sed6]

I went with a Square D box ($13) and Nader 400vdc breakers ($15) and a din rail from Grainger ($3.50).

 

[erik.calco]

I went with a Square D box ($13) and Nader 400vdc breakers ($15) and a din rail from Grainger ($3.50).

View attachment 12522

Nice. Can you link to the breakers? Never heard of those. Any DIN breakers that can handle 400VDC need to be on our list.

 

[sed6]

Nice. Can you link to the breakers? Never heard of those. Any DIN breakers that can handle 400VDC need to be on our list.

My bad, only 60VDC.

ASI 20 Amp 240Vac/60Vdc Miniature Circuit Breaker DIN Rail Mount

ASI 20 Amp 240Vac/60Vdc Miniature Circuit Breaker DIN Rail Mount NDB2-63C20-1 - The Home Depot

The NDB2-63C20-1 Miniature Circuit Breaker, MCB, is rated at 20 Amp at 240 VAC and 60 VDC. This single pole circuit breaker has a superior 10kA interrupt capacity, an easy to wire shock proof wire terminations,

www.homedepot.com

Here's the box.

Square D QO 60 Amp 240-Volt 7.4 kW Non-Fuse AC Disconnect

Square D QO 60 Amp 240-Volt 7.4 kW Non-Fuse AC Disconnect(QO200TRCP) QO200TRCP - The Home Depot

For more than 90 years, we've been the unchallenged leader in safety switches. Our Square D brand safety switches are preferred two to one over our closest competitor. We've continued our tradition of

www.homedepot.com

 

[erik.calco]

My bad, only 60VDC.

ASI 20 Amp 240Vac/60Vdc Miniature Circuit Breaker DIN Rail Mount

ASI 20 Amp 240Vac/60Vdc Miniature Circuit Breaker DIN Rail Mount NDB2-63C20-1 - The Home Depot

The NDB2-63C20-1 Miniature Circuit Breaker, MCB, is rated at 20 Amp at 240 VAC and 60 VDC. This single pole circuit breaker has a superior 10kA interrupt capacity, an easy to wire shock proof wire terminations,

www.homedepot.com

Here's the box.

Square D QO 60 Amp 240-Volt 7.4 kW Non-Fuse AC Disconnect

Square D QO 60 Amp 240-Volt 7.4 kW Non-Fuse AC Disconnect(QO200TRCP) QO200TRCP - The Home Depot

For more than 90 years, we've been the unchallenged leader in safety switches. Our Square D brand safety switches are preferred two to one over our closest competitor. We've continued our tradition of

www.homedepot.com

Thanks. 60VDC is not high enough for me. But, I do need a cheap outdoor box just for running my PV cable through for my panels. A lot of people run their combiner box to the panels, but cuz of the price of 4 AWG vs 10 AWG, and the convenience, the combiner box and the panels are far apart. So, I need an outdoor box just for running PV wires to that's very close to the panels. Your Square D box is perfect for that!

 

[Pacer]

Man. This thread has me rethinking my component build. These AIO units look so easy and reliable. Will also mentioned that individual components within the unit are able to be replaced if they fail. Can anyone confirm this?

I’d be spending about another $2-300 to get the Hybrid LV2424, but the simplicity and compact form factor are really swaying me in this direction. I see tons of people (with some REALLY nice setups, certainly including the ones on here) using these with seemingly great results.

I also like the fact that MPP Solar USA has a presence in the US, and these units have the 1 year swap warranty program (per the site).

Do I gain enough in simplicity and form factor to consolidate to this solution? I can’t say I plan on expanding this initial build a whole lot further, so maybe spending a little extra here is the smart move for the first system.

Right now I have a MPPT SCC, 2000W inverter, and then bought the MOES ATS. This unit above will do all of that with equal or better specs. I love simplifying in other places in my life, this one might also be a place to do that!!!

Can anyone push me over the edge in one way or another?

 

[dashdrum]

Even though I don't have one of these units, I have enjoyed reading about everyone's efforts and trials. My still-on-paper plan for a garage setup with solar priority and grid backup could be served well by an LV2424 or similar.

 

[mike939]

This is a very interesting thread! My LV2424 Hybrid is on it's way. I agree for the price point it can't be beat!



A breaker between your panels and MPP is a good idea as it serves to both protect your system and act as a PV disconnect. Your panels should be the first thing you disconnect and the last thing you reconnect when you service your system. Flipping a handy breaker makes that super easy. YOUR breaker should be sized a panels in seriesccording to your panels. If your panels generate 7 amps each and you have two in series that's 14 amps and a 15 amp breaker will work. I have 17 amps protected by a 20 amp breaker in my system. Make sense?

Not an electrician, but i assume this is a single pole breakers, so which wire, positive or negative, attaches to it? I have 4 - 100W panel in series each produce 6 amps, 4 x 6 = 24, so I'm assuming a 30a breaker, right?

 

[sed6]

Man. This thread has me rethinking my component build...I’d be spending about another $2-300 to get the Hybrid LV2424, but the simplicity and compact form factor are really swaying me in this direction...Can anyone push me over the edge in one way or another?

I spent just $150 more than individual components and it's got an AC charger, cool display and time shifting plus many other features! Plus mine arrived from the factory today, took just 1 week!!!

Not an electrician, but i assume this is a single pole breakers, so which wire, positive or negative, attaches to it? I have 4 - 100W panel in series each produce 6 amps, 4 x 6 = 24, so I'm assuming a 30a breaker, right?

Not an electrician either, I broke both positive and negative with their own 20amp breaker. My idea was a complete PV disconnect without unscrewing any wires. You would want 30 amp like you said.

 

[sed6]

Any tips installing the software? I can't find the install icon and the Windows folder on the disc is a .rar file.

 

[sed6]

Any tips installing the software? I can't find the install icon and the Windows folder on the disc is a .rar file.

Never mind, just needed a .rar unpacker.

 

[Hunter937]

I would love some help on my set up from anyone please. I’m getting no solar charge. I’m running 4 12v batteries and 8 100w of solar run in series and parallel.

 

[Sky-HHI]

It is hard for me to read your screen shots. What is the voltage of your battery now on screen 1. On screen 2 , the battery cut off voltage should be 21 volts.

 

[Sky-HHI]

Made sure the power saving mode is disabled ( screen 2) Do you have 120 volt AC connected to the unit?

 

[Fred S]

Just a note on breakers being discussed - if your panels are in series you don't sum up amps per panel, only voltages. Four 6-amp panels in series will only give you a max of 6 amps.
A breaker should not be rated any higher than the thinnest gauge wire in that circuit can safely carry. Of course, if you have a component to which you want to limit the amps, then it's fine to downsize a breaker to protect that component.

 

[Hunter937]

Made sure the power saving mode is disabled ( screen 2) Do you have 120 volt AC connected to the unit?

I don’t have anything going into the unit what so ever. I have 8 solar panels and it gave me a reading of 80 volts when I had all of them plugged in. I was running two 400 watt arrays in parallel getting 80volts. I ended up unplugging two of the panels, leading me to have a total of two 300 watt arrays in parallel but now it is only reading 28volts so at this point I am royally confused. My voltage on my batteries is 26.8 currently

 

[Hunter937]

What I’m wondering is how my array went from being 80volts to 28??

 

[doctorcupcakes]

What I’m wondering is how my array went from being 80volts to 28??

Are you sure you unplugged a panel from each array? Or did you unplug 2 panels from the same array? If you did, that would make one array half the voltage of the other, and combining different voltages in parallel is a big no no that can cause a funky voltage reading.

 

[danb35]

Any DIN breakers that can handle 400VDC need to be on our list.

Sed linked to an ASI breaker on homedepot.com, but they sell directly, and have DC breakers rated at 125vdc/pole. Using a two-pole breaker on positive and negative, according to the datasheet, would give up to 250vdc. Here's an example, a two-pole 50A breaker at 250vdc:

Electronic Components & Supply Online Store | ASI

Need automation components and parts? Check out ASI's vast inventory of electronic components for automation and industrial applications.

www.asi-ez.com

Quite a difference between 250vdc and 400vdc, but 250vdc isn't nothing.

 

[erik.calco]

Sed linked to an ASI breaker on homedepot.com, but they sell directly, and have DC breakers rated at 125vdc/pole. Using a two-pole breaker on positive and negative, according to the datasheet, would give up to 250vdc. Here's an example, a two-pole 50A breaker at 250vdc:

Electronic Components & Supply Online Store | ASI

Need automation components and parts? Check out ASI's vast inventory of electronic components for automation and industrial applications.

www.asi-ez.com

Quite a difference between 250vdc and 400vdc, but 250vdc isn't nothing.

Very nice find. Added to my breakers page.

 

[Sunny Days]

Anyone know about repair guides for
The LV2424?
Mine been working great for about 2 years, now its off, if switch it on the screen lights up with no data just blank and last for 3 seconds then its off, no beeps and no fans running.
Cant seem to find anything online.