Trying to meet Rapid Shutdown requirements with an SMA inverter on a residential job.
What is your experience with the new SMA module-level add-ons (TS4-R-O and TS4-R-F) .......vs older RSS controller and switch button?
First option seems simpler to install, and cheaper too. I heard they have poor reliability. Is that true?
Is the second option available still?
What is your experience with the new SMA module-level add-ons (TS4-R-O and TS4-R-F) .......vs older RSS controller and switch button?
First option seems simpler to install, and cheaper too. I heard they have poor reliability. Is that true?
Is the second option available still?
Last edited: