improper3100
New Member
I currently have an 8kW SunSynk that I've hooked up and am switching to a 16kW SunSynk soon. I have 11kW of Solar panels and 6 x 5.12kWh CATL SunSynk batteries.
The cables the batteries came with are 25mm2 copper, and I can't seem to find any bigger than this.
So right now my inverter is set to take 100A from and to the batteries, which at 48v is only 4800W.
I saw in the SunSynk manual that you can double up on the cables and get 200A out, but I don't really get the maths on this. I know when you do a radial circuit in the UK with 2.5mm2 cable, you can use a 20A breaker, but when you double up and make a ring, it doesn't go to 40A, you can only go to 32A... so how is 2 x 25mm2 cable = 200A?
Can someone help with the math on this? One site I looked at said you'd need 85mm2 conductors. Appreciate your help!
The cables the batteries came with are 25mm2 copper, and I can't seem to find any bigger than this.
So right now my inverter is set to take 100A from and to the batteries, which at 48v is only 4800W.
I saw in the SunSynk manual that you can double up on the cables and get 200A out, but I don't really get the maths on this. I know when you do a radial circuit in the UK with 2.5mm2 cable, you can use a 20A breaker, but when you double up and make a ring, it doesn't go to 40A, you can only go to 32A... so how is 2 x 25mm2 cable = 200A?
Can someone help with the math on this? One site I looked at said you'd need 85mm2 conductors. Appreciate your help!