These were purchased as extra protection and to quickly shut down my solar panels. I have a combine with circuit breakers and a surge arrester, but I need extra security. They were so easy to install, just snap and plug onto the DIN rail. They work flawlessly, have a highly visible green/red window on each switch to show status, and the switch feels good when actuated. I tested them under load and in a surge test they delivered almost 23A. They also tripped at just over 21A after applying the…