Was planning to run the 2 sets of 6 panels in parallel, so string was the wrong term
If you have 6 panels in parallel (or 6 strings), each should have a fuse of the size listed on panel label.
6p2s is a bad thing. If some panels are shaded or disconnected, the current from 6p is forced through the remaining 5p, 4p, 2p, whatever.
Better to do 2s6p. Connect two panels in series for 60.6V. Then connect a fuse. Then combine 6 of these in parallel. Fuse or breaker can be in combiner box. (I do NOT like "polarized" breakers or this purpose.)
30.3V is probably Vmp. What is Voc?
What are PV input specs of LV6048? They have so many models I can't be certain of pulling up right one.
Voc spec of the PV panel is not what is used to see if it meets max Voc spec of inverter. You need to take into account the record coldest temperature of your location. Also temperature coefficient of the PV panel. These may increase voltage about 16%, give or take.
If you have pencil and paper, you can make a diagram of what you're planning to do. Take a photo and upload.
We use certain nomenclature to reduce "1000 words" to a single sentence, but best to show the picture when you're unfamiliar. It can save burning up electronics or wires.