230v Fridge & Elektroblok on same MCB?

[NeilCampervan1]

Hello, I recently had an issue with driving rain getting into the lower external fridge vent and onto the fridge connection plug which was tripping the MCB in the 230v panel. This was a particular issue as the Elektroblok is on the same MCB so it was also tripping when on hook up so no battery charging! So I was was wondering could I separate the fridge and Elektroblok onto separate MCB’s so in future if I have a fault with either system I don’t also loose the other one. Is there any technical reason they are on the same breaker or is it just a cost saving during installation? Thanks

 

[Clivefog]

I suspect cost saving, just wire in another.