Are there any differences in the support for certain features, in particular with respect to VE.Direct, VE.Smart Networking and central control by a Cerbo GX between the two categories of MPPT solar controllers
- 75/10, 75/15, 100/15 & 100/20 on the one hand side, and
- 100/30 & 100/50 on the other hand side?
I know the obvious differences which are input voltages, output ampacities, power ratings and that the MPPTs from the smaller category provide an integrated load output.
However, I am wondering if there are more differences than those which immediately meet the eye. (This wouldn’t be the first time as Victron has a reputation to hide relevant differences within the depth of the configuration manual.)
Two years ago a started to design a small installation for which an MPPT 75/15 would have been sufficient, but the project became stalled. Now, two years later the project resumes. Back then I deliberately decided to project the more expansive MPPT 100/30 instead of the sufficing 75/15. Unfortunately, I did not note down the reasons, but there was good, technical reason.
The installation is going to contain several chargers and two smart shunts for two independent battery banks. So the chargers need to cooperate either via VE.Smart Networking or via an optional Cerbo GX. Back in my mind I have the nagging memory, that the smallest category of MPPT solar controls had some restrictions in that area, i.e. something like not fully supporting VE.Smart Networking, an artificial limit on how many MPPTs can join a VE.Smart Networking or some restriction regarding VE.Direct and support for DVCC via a Cerbo GX . Something like that.
I have re-reading all manuals and datasheets but couldn’t spot the issue. Maybe there was an issue two years ago which has been remedied in the mean time and I am on a wild goose chase.