Which mppt

Advise on which mppt size required.

System is

Solar panels Panasonic VBHN330SA17 (330watt) number x 4 in parallel

Battery bank 6 x 48v pylontech UP5000 lithium. 30kw total

Thanks in advance

Please try the MPPT calculator on the Victron website.

the Vmp of these panels is too low to charge a 48v battery, the VMP is 58V, it is barely enough to start the mppt (start voltage is bat voltage + 5V)

if you use your panels in parallel it will charge very badly if at all.

rather connect them 2s2p and a 150/35 MPPT will be sufficient.