master switch for battery banks

robocoprobocop Registered Users Posts: 97 ✭✭
Hi good morning everyone
I have 5 battery banks each 48v  250ah gel batt. total 1250ah.
Had a master cut off swicth of 275a on it.
when i had to reset the inverter could not as the swicth was loose and turned out to have burned from the inside.
question : what  amp swicth do i have to use now.
Appreciate your help.


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