Technical Support

I have a long cable run of 70m of 4mm cable to serve my proposed remote array. I would like to use 12 panels in series giving me 12 x the VOC of 38.7v = 464v I notice the Lttp talks about 125 - 425v range but then stipulates the max as 500v. Is this safe to use 12 in series?

Note I already have 4 strings each with 6 panels giving a theoretical 230.4v - (at 50m on 4mm cable) but when measured on the Sunsynk inverter it states the operating voltage is around 185v - this seems pretty consistant this is close to the panels quoted VMP of 32v. So using this analygy - 12 x 32 would = around 384v seems pretty reasonable especially considering the extra cable length...... can anyone advise??????