... other communication modes;Specification BG4KTLBG5KTLBG6KTLInput (DC)Max. DC voltage(V)550Starting voltage(V)100MPPT range(V)200 - 500200 - 500200 ... - 500Number of MPPT / string per MPPT2/22/22/2Max. DC ... C,Derate after 45°CProtectionOvervoltage protection , DC isolation monitoring , DC monitoring,Grounding fault monitoring , Grid ...