I am planning of installing two instant water heaters each rated at 240V/60A
My electricity company will not provide MCB higher than 50A

Does anyone know of any solution to override the MCB? Use of AC capacitors (e.g. charging at 20A to 720V and discharging at 60A at 240V)
If such solution is feasible and safe, do you know of any capable capacitor?

Any other tested solutions/devices are highly appreciated.

Thanks

My electricity company will not provide MCB higher than 50A

Where are you located?
Is this a residence?

I'm in jordan and it is to be installed in an apartment.. thanks

Jordan as in the Middle East??

Good luck!!

Is this for Hot showers? With available capacity, you may have to use a Tank water heater.
Tanks works well, Use with a time clock and a blanket for the heater to help with efficiency/ cost.