ground fault protection question

[kauaisolarman]

hello

I have purchased midnite solar GFP circuit breaker for my midnite KID as prescribed in the wiring diagrams by the KID manuals.

do i also need to use these Midnite GFP circuit breakers with the Classic and Classic-SL models also? 

or are they not needed because the Classics and Classic-SL both have built in GFP?

just want to make sure i'm not missing a GFP circuit breaker between the PV and CC (like the KiD needs).

thanks

[Halfcrazy]

They would not be needed on the classics as all classic models have ground fault built in