Hi. I hope you can recommend a replacement for my one of my ELCB's (pic below), that is less sensitive to thunderstorms.
Currently, a bad thunderstorm can cause it to trip every 20-30 seconds. Surge protection has been installed but it didn't help much at all with this problem.

Would the Si (super immune from Schneider) or Hi (high immunity from Hager) RCCB/ELCB help with this? And how much do they cost please?

Thanks



surge protection