How many panels ?

[Brettxxx4]

I have a 2500 W power inverter that says it’ll take 200 A max input . I have a solar MPPT controller directly hooked to the batteries , inverter is also hooked up directly to the batteries. How many panels can I hook up without blowing the inverter. I mistakenly thought the charge controller would prevent Too many amps from going into the batteries and flow to the inverter , but it hasn’t.

I have 4 batteries hooked up
Pos to pos

Opposite ends off the 4 connected (negative and positive ) are connected to the MPPT and seperate lines to the power inverter

Also, do I need a fuse to prevent the inverter from getting blown. (Again) any recommendations and where to put it

 

[sunshine_eggo]

I have a 2500 W power inverter that says it’ll take 200 A max input . I have a solar MPPT controller directly hooked to the batteries , inverter is also hooked up directly to the batteries.

How many panels can I hook up without blowing the inverter.

Depends on the charge controller.

I mistakenly thought the charge controller would prevent Too many amps from going into the batteries and flow to the inverter , but it hasn’t.

Only if it's an MPPT. A PWM can't regulate output current.

I have 4 batteries hooked up
Pos to pos

Opposite ends off the 4 connected (negative and positive ) are connected to the MPPT and seperate lines to the power inverter

Also, do I need a fuse to prevent the inverter from getting blown. (Again) any recommendations and where to put it

You need a fuse/breaker to protect each circuit.

There should be a fuse/breaker between:

battery and charge controller
battery and inverter
PV and charge controller when 3 or more panels/strings are in parallel - one per string.

Fuses/breakers should be sized 1.25X wire rating.

 

[Brettxxx4]

Any suggestions on the appropriate fuse breakers I would need to prevent the next inverter from getting too much juice.

 

[Brettxxx4]

This is my MPPT
Charge controller. It shows the specs in the picture
. Please check my math, but it looks like I had 800 W of panels running to a maximum of 650 W for 12 V

 

[MisterSandals]

but it looks like I had 800 W of panels running to a maximum of 650 W for 12 V

The key number is the input limit of 100V. What is the Voc of your panels and how were they connected? (series or parallel, or?)

 

[Brettxxx4]

Both. I made a drawing with my finger to show you my connections for both of those lines going to a combiner box and that total power goes to the MPPT.

There’s a picture of the panels that I have as well.

 

[740GLE]

Any suggestions on the appropriate fuse breakers I would need to prevent the next inverter from getting too much juice.

What cable do you have to connect from the battery to the inverter?

12v 2500w plus efficiency losses that might crack 250A

But I wouldn’t use a 250a fuse if you only have 4awg.

 

[Brettxxx4]

Here it is

What cable do you have to connect from the battery to the inverter?

12v 2500w plus efficiency losses that might crack 250A

But I wouldn’t use a 250a fuse if you only have 4awg.

i’m using the cable that came with it. It seems like it’s a six or eight AWG.

I’m looking for fuses that are appropriate to prevent damage to my next inverter. Would this one be what you would recommend see picture

 

[740GLE]

Please don’t look at anything that says “audio” to be used for a solar system, be it breaker, fuse, or cabling. This will save a lot of headaches down the line.

Cabling that comes with economical inverters typically aren’t rated for full output of the inverter.

If you intend on using the provided cables and you think it’s 8 awg, I’d want a fuse/breaker at 55a.

This would limit the inverter well under 1000w before the fuse/breaker operates.

This highlights why you should probably be using 1/0 if you want the full output of the inverter.