TNmountain
New Member
- Joined
- Jan 18, 2022
- Messages
- 7
So I have 6 of the eg4-ll 48v 100ah batteries with signature solars rack that will be connected to a growatt 12k inverter. I have been looking at the forums and I lack the confidence to decide the wire size and fuse/breaker to go with due to my concern of safety.
The inverter manual says that the output ac side should have a 80amp breaker inline between the inverter and the panel box. I intend to put a 80amp double pole inside the panel as my breaker/disconnect.
On the battery to inverter size, I saw on this forum somewhere to use the 12000w/48/.85 = 294amps? I am not even sure if this is correct, but this would be I need a 300 (or 350 for overhead?) amp breaker/fuse. Is this correct? The manual says something about using a 3*2awg wire for the 12k inverter but does not seem to take in consideration anything about battery bank size. Just says at least 400ah batteries for the 8-12k inverters.
So, my questions are what size breaker and wire on the DC side. And what does the 3*2awg mean?
The inverter manual says that the output ac side should have a 80amp breaker inline between the inverter and the panel box. I intend to put a 80amp double pole inside the panel as my breaker/disconnect.
On the battery to inverter size, I saw on this forum somewhere to use the 12000w/48/.85 = 294amps? I am not even sure if this is correct, but this would be I need a 300 (or 350 for overhead?) amp breaker/fuse. Is this correct? The manual says something about using a 3*2awg wire for the 12k inverter but does not seem to take in consideration anything about battery bank size. Just says at least 400ah batteries for the 8-12k inverters.
So, my questions are what size breaker and wire on the DC side. And what does the 3*2awg mean?