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So I was able to get a hold of Signature and he said that the 18 is not a hard ceiling and that the inverters will just only draw 18amps. Said I couldn't hurt them. Told him I'd be running 207vdc into them at 19amps (assuming the panels are putting out full power) and he said that would be...

Thanks guys. I appreciate the input alot.

Hi Tim, so looks like 20amps. I included the panel label below. Also included is a diagram of the set up with where I understand the fuses should go. Look correct? So I need four 20amp fuses for this set up? Sounds like we have similar setups. I also have 6kw of panels going into the two...

Hey Tim, this is from a while ago but I am looking to get some fuses per this older discussion. I have a 5S2P set up sending 205 Vdc at 19amps into a Growatt 3000 LVM inverter. I attached the specs for it. I'm wondering what amperage I should get for the fuses. I called the place I bought it...

Yes to everything you wrote. I don't have a tilt angle or compass heading for you though. Sorry.

So one of the strings is all oriented the same, the other string has a slight difference between the two but not too much. So, 20 panels total, 2 parallel strings of 5 panels each. 2x So 15 are all the same, while the last 5 are at a slightly different angle but not much. Thanks for your help

The imp is 9.48 A and the Isc is 10.37

Oh, charging current is how much is going to the battery. I see, so I guess the PV input is the number I have to look at. 18Amps sure seems low. fingers crossed it can handle more than that.

Thanks Robby, according to the manual, the 80Amp number is the Max PV charging current, while the max PV input current is 18Amps. I don't know what the difference is between charging and input. I'll call them tomorrow and see. Thanks for trying buddy. I know this is an old thread.

I'll reach out to growatt and/or signature solar tomorrow too to find out if the 18Amp max is going to be an issue. Cheers!

Hey Robby, ol visionguild here. I'm sorry to bother you. I'm finally starting to hook things up. I know, ridiculous how long it's taken me. So I was looking at the manual and it says the max amperage for the inverter is 18amps. I see you have 22Amps listed and I do have the 5S2P set up...

Ok. Thank you Hedges. yeah, they're all going to be in the sun pretty equally. No real shade around except in the early morning as the sun gets over some trees, but after 10 till about 6pm they'll all be getting equal sun.

Thank you so much for all your help. I can't tell you how much I appreciate it. Good folks on here. Cheers Tim.

Perfect. Thanks. So I guess I'm ok on not using fuses then as I'm only putting 2 strings together but I should get blocking diodes for the two that are facing slightly different angles. Would I be getting two diodes? One for each + string coming from each group or just one on them after...

Thanks! I thought so. just saw your email about the junction boxes. Duly noted. Thanks. Ok, last question! Take a look at the pic I included, do I just need fuses on the + ? And on the two groups on the left, since I do have two groups in parallel facing slightly different directions...

Wonderful. Thank you for your help. I appreciate it. I'm not sure if I'll need a combiner box or not. That's the next step after I get these panels up. I'm using 2 3000k LVM Growatts. Learning about all of this as I go. Thank god for this forum. Ah, good to know about the fuses and...

Wonderful. Thank you for your help. I appreciate it. I'm not sure if I'll need a combiner box or not. That's the next step after I get these panels up. I'm using 2 3000k LVM Growatts. Learning about all of this as I go. Thank god for this forum.

Oh, It's only a 30 foot at most distance. I used that calculator and got .65 with 10G. If I put in the right data

This is wonderful. Thank you.

So someone else posted that if I just use 10g regular solar wire the loss would be minor, you think I need 6g? I'll have to order that I guess with the solar connectors already added.

the bottom is an alternative way to group them, didn't know which would be best as I didn't know if the + - could be different lengths, see what I mean?

So the panels are 315W and the open circuit voltage is 41.49 at 9.48 amps. I'm going for 207VDC at 19amps with the 5S2P setup. This is to fit with the controller. So can the + - wires be different lengths? considering how I have to position the panels, one end is going to be farther away from...

So the panels are 315W and the open circuit voltage is 41.49 at 9.48 amps. I'm going for 207VDC at 19amps with the 5S2P setup. This is to fit with the controller. So can the + - wires be different lengths?

they are slightly. Not much I can do about it but it's not that much of a difference. otherwise they're all pretty much the same as far as shading goes. Nothing over them really. Open all around. Thank you.

Hi there, I have 20 48v panels I'm wiring up in two groups of 5S2P to go to two inverters. So ten panels to each inverter. The panel set up is a little funky as the roof space I have is separated a tiny bit. I included a drawing of how they're going to be installed. Hopefully that helps. Do...

Thanks, I will. I still need to do the AC side. I'll get this part going first at least. Cheers!

Hey Robby, just a heads up. I was able to just get 4 more of those same panels so I'll be doing a 5S2P set up for each inverter. Thanks for your help with this. Should be good to go. Cheers!

I was just able to get 4 more of the same panels I have so I can do 5S2P for each inverter now. Should be good to go. Thank you for your help

Thanks so much! Ok, so another user on here, Robby, had posted this as a concern, "The one thing I do not like and your just going to have to test and find out is if that 4S2P is going to be enough for that Inverter. According to the Manual the startup voltage from the panels needs to at...

Just had a thought, does the solar need to be identical on each inverter? Maybe my thoughts of how to do it on my last post won't work. They would be running in split phase parallel operation.

Hey Robby, Clay again. Hope you don't mind. So I included a pic of the specs in the manual. You had posted above regarding the preferred 5S2P, "I would have felt more comfortable with a 5S2P which would be 207Vdc and working Voltage of 166V with Aprox 19 Amp. That is nicely inspec with this...

Oh yeah, duh. Geez, I'm such a noob. Ok, so yeah, your original post is accurate. I can't get anymore panels, that are an exact match to the ones that I have. I guess I can look online and find something if I need too. I'll wire them up then as you described and I guess I'll just see if...

Hey Robby, Clay here, from a few months ago. I'm actually finally getting around to doing my panels. Been going over all the post from earlier and saw this one. What if I used 15 of them, 3 sets of 5 in series attached in parallel? Added an image. This way my Voc would be 205. It leaves on...

Thanks Robby. I'll maybe just stick to how you have it drawn up. I'll be starting on this over the next few weeks. I need to remove some trees this weekend and then I'll be putting the panels up. Going to take me a week or so but I'll check back in here when I get the panels up and have the...

Thanks for your input. I appreciate it alot.