Hi all

I just got my 1st system, and wanted to ask about the pass-through limit, I have googled but can't find any info of this for my Kodak 6.2kw 48v inverter.

KODAK Solar Off-Grid Inverter 6.2kW 48V - Solar Backup wanted to make sure when I use the grid (Eskom) power, how much goes through the inverter,

without putting strain/load on the inverter, or above its max.

if someone could please help me, thanks in advance.

regards.

Edited January 26, 20233 yr by Marius1980
spelling

21 hours ago, Marius1980 said:

how much goes through the inverter,

without putting strain/load on the inverter, or above its max.

This is not documented by the manufacturer.

 I was surprised to find, when reading an older firmware, that it appears that the rated power of the inverter is what determines the limit before an overload fault comes up. In other words, you can't bypass any more than you can generate from the inverter via the battery alone. It's not clear if this applies to later models, but I suspect that they are running up pretty hard against the limits of what currents you can out through printed circuit tracks. Unless they change the design to use off-PCB relays, I don't see this changing.

So for a 6.2 kW rated model, it seems that you can only get 6.2 kW continuous through it, regardless of where the power comes from, and only about 10 seconds of 12.4 kW (100% overload), and perhaps 30 seconds of some intermediate overload (perhaps 30% overload, I can't recall the exact figure).

thank you very much. 

Here you can see that 5kw Kodak King can do more than 5kw load. This lasted for 3 min.

On 2023/01/26 at 12:09 PM, Marius1980 said:

wanted to make sure when I use the grid (Eskom) power, how much goes through the inverter,

without putting strain/load on the inverter, or above its max.

I had this situation with my single Axpert MKS5K before I added a second parallel unit. Basically the inverter switched to grid bypass on overload. It then passes trough whatever the demand is. The only limits are the copper tracks on the pcb as Coulomb mentioned and the current capacity of the relay contacts. Luckily I had no damage. After adding a parallel unit I no longer run into that situation.