value of the circuit breaker and switches

He has 3 power walls of 48vdc 200ah LIPO each
12 mono solar panels of 560w each.
10kw hybrid inverter split phase with 2 PV inputs
But has to decide if change to 2 x 5kw hybrid inverter each with 1 pv input or keep the 10kw inverter.

question: what are the VALUE of the different switch/circuit breakers he has to use.

Hoping I have been clear if not appreciate you let me know.

Regards to you all

Bob

The conductor must be sized to handle the max current.

Fuses/breakers sized for 1.25X the conductor current.

Hi
Can you tell me what do you mean with conducter current ?

thnks
Bob

conductor = thing that conducts electricity, usually a wire/cable.

current = the amount of current in Amps that passes through the conductor.

sunshine_eggo said:

conductor = thing that conducts electricity, usually a wire/cable.

current = the amount of current in Amps that passes through the conductor.

Click to expand...

Hi am back again

each 560w panel has a voc of 18.2amp . will add to each pv input 5 panels .

decided to use the 10kw inverter . what is the total amp for each pv input see have to multiply by 1.25.

Awaiting any news
Bob

masbango said:

Hi am back again

each 560w panel has a voc of 18.2amp .

Click to expand...

Voc is voltage. 18.2amp is amps. You likely mean 18.2A Isc.

masbango said:

will add to each pv input 5 panels .

decided to use the 10kw inverter . what is the total amp for each pv input see have to multiply by 1.25.

Click to expand...

18.2A * 1.25 = 23.1A - your conductors must be rated for this or higher.

For 5 panels in series on a single MPPT, you do not need a fuse or breaker, but if you do, simply use the max rated fuse listed on the back of the panel.

use the max rated fuse listed on the back of the panel.

That would be totally useless. I test a lot of breakers and a really really good breaker will trip over time with 135% over the current rating. That will just never happen with solar panels in series. The panel rated fuse is the current it will burn thru the back panel. Probably destroying the panel way before that. Many breakers trip at well over 180%. I had a 32A breaker that wouldn't trip at 90A. Had to stop the test because wires were melting. Rated current has more than enough margin. I view breakers as only disconnects.