here for the sunshine shenanigans
From SMA support:
6468: Overvoltage Boost Converter Input A
6469: Overvoltage Boost Converter Input B
6470: Overvoltage Boost Converter Input C
6488: Overvoltage Boost Converter Input D
6489: Overvoltage Boost Converter Input E
6490: Overvoltage Boost Converter Input F
Recommendation for any of these is to check the DC voltage on the applicable input to make sure it doesn’t exceed the max rating. Otherwise, you’re probably gonna be doing an RMA on a part.
Talked with TJ from SMA America about their upcoming 3-in-1 rapid shutdown device at RE+ this year!
The SMA Smart Shutdown is a 3-in-1 device (1 SSS can shut down 3 panels), and is RAIL-mounted, not panel mounted. Could be a pretty great option. It’s not string shutdown yet, but design-wise, the install process looks to be better than any other rapid shutdown device I’ve seen out there so far.
SMA says the SMA Smart Shutdown is coming in Q2 of 2025, along with their larger Sunny Boy Smart Energy and Home Storage products.