Hello, some time ago I bought an 8k hybrid inverter with 3 48v EG4-LL Lithium Battery (V2) , I am finishing buying the other parts to be able to assemble my system.
Spec of inverter
spec of battery
I will be using 9 solar panels with the following specifications
ELECTRICAL PARAMETERS
Performance at STC (Power Tolerance 0 ~ +3%)
Maximum Power (Pmax/W) = 550w
Operating Voltage (Vmpp/V) = 41.96
Operating Current (Impp/A) = 13.11
Open-Circuit Voltage (Voc/V) = 49.92
Short-Circuit Current (Isc/A) = 14.00
Module Efficiency nm(%) = 21.2
my setup
3 panels in series to have 1 string per mppt. (inverter have 4 mppt)
What would be the parameters in 3 panels in series
voc= 49.92x3x1.25% = 187.20v
Isc = 14.00x125% = 17.5a
I plan to use 1 breaker of 2 Pole, 20A, 480V AC, 250V DC, Trip Curve: C, DIN Rail Mount-Miniature Circuit Breaker, 35mm Width, UL1077 (SKU: NDB2Z-63C20-2). per series of 3 panels
(https://www.sourceasi.com/product/dc-din-rail-mount-circuit-breaker-2-pole-20-amp-mcb-ul1077/)
additional
DIN Rail Mounted Midget Fuse Holder, 2 Pole, 10 x 38 mm, 18 to 8 AWG, 32 Amp, 1000 VDC, PV Rated, (SKU: AFB01D2P).with 20A fuses. per series of 3 panels.
(https://www.sourceasi.com/product/solar-fuse-holder-2-pole-1000vdc-30-amp-din-rail-mount/)
To protect the batteries I would use
2 Nader DC Circuit Breaker | 60V 200Amp (https://signaturesolar.com/nader-dc-circuit-breaker-60v-200amp/)
one for positive and one for negative
PV connection
Use 10 AWG wire to connect with ferrules.
Grid Connection
Connect the 8 AWG wire to ferrules
Battery connection
2/0 awg
Any suggestions or help you can give me about this configuration would be very grateful. Thanks
Spec of inverter
spec of battery
I will be using 9 solar panels with the following specifications
ELECTRICAL PARAMETERS
Performance at STC (Power Tolerance 0 ~ +3%)
Maximum Power (Pmax/W) = 550w
Operating Voltage (Vmpp/V) = 41.96
Operating Current (Impp/A) = 13.11
Open-Circuit Voltage (Voc/V) = 49.92
Short-Circuit Current (Isc/A) = 14.00
Module Efficiency nm(%) = 21.2
my setup
3 panels in series to have 1 string per mppt. (inverter have 4 mppt)
What would be the parameters in 3 panels in series
voc= 49.92x3x1.25% = 187.20v
Isc = 14.00x125% = 17.5a
I plan to use 1 breaker of 2 Pole, 20A, 480V AC, 250V DC, Trip Curve: C, DIN Rail Mount-Miniature Circuit Breaker, 35mm Width, UL1077 (SKU: NDB2Z-63C20-2). per series of 3 panels
(https://www.sourceasi.com/product/dc-din-rail-mount-circuit-breaker-2-pole-20-amp-mcb-ul1077/)
additional
DIN Rail Mounted Midget Fuse Holder, 2 Pole, 10 x 38 mm, 18 to 8 AWG, 32 Amp, 1000 VDC, PV Rated, (SKU: AFB01D2P).with 20A fuses. per series of 3 panels.
(https://www.sourceasi.com/product/solar-fuse-holder-2-pole-1000vdc-30-amp-din-rail-mount/)
To protect the batteries I would use
2 Nader DC Circuit Breaker | 60V 200Amp (https://signaturesolar.com/nader-dc-circuit-breaker-60v-200amp/)
one for positive and one for negative
PV connection
Use 10 AWG wire to connect with ferrules.
Grid Connection
Connect the 8 AWG wire to ferrules
Battery connection
2/0 awg
Any suggestions or help you can give me about this configuration would be very grateful. Thanks