That's the manufacturer of the AC Module, and I believe their documentation isn't valid for installation purposes because the module is incorporated with the PV panel by other maunufacturers. Now if the package manufacturer includes that documentation in their listing and instructions, it could be allowed. That's why I asked for make and model of the package.
I can tell from the White Paper on their website that they don't know how to apply OCP and conductor sizing rules. For example, there is no mention of terminal temperature limitations imposed by 110.14(C) (possibly 60?C, at best 75?C), and they justify OCPD rating from the derated ampacity of the conductor.
IMO, the manufacturer would have furnish everything, including the OCPD, as a listed package for it to be truly compliant under the NEC.
Ohhh! and as I mentioned earlier that 240.5(B)(2) applies to "fixture wire" and the wire type must be listed in Table 402.3. The White Paper says the home-run cable conductors are XHHW-2... and that is not a type listed in Table 402.3!!!