Forced Charging of Solax Batteries Tripping the 50amps MCB

[scholar2k3]

Hi,
Here is the spec of my Solax PV system:
Two Solax inverters (7.5kW hybrid single phase) master and slave configuration with two 12Kwh batteries

Here are the electrical installation details:
I have 50amps Hager MCB type B (https://www.cef.co.uk/catalogue/products/42519) installed in the CU.
16mm2 SWA cable is running from house CU to Solar installation in the garden outbuilding.

I am on an Octopus Go tariff and want to force charge my Solax batteries from 00:30 to 4:30 but the dedicated MCB of my house CU is tripping the power of the Solar system from the house and the Solax inverter gets into off-grid mode every night.
I can see 12000 watts get pumped at night time when the forced charge session starts but it does not last longer (around 25 minutes later) before the MCB gets tripped.

Please guide me on how to overcome this situation, thanks in advance.

 

[johnb2713]

Reduce the charging current to less than 12kW, thats at or over 50 amps.

 

[scholar2k3]

Reduce the charging current to less than 12kW, thats at or over 50 amps.

Thanks, I have reduced the charging current rate, let's see if it works tonight.