No PV at the house. The little window and dial indicates it’s for monitoring and adjusting something.
You didn’t open it up? Why?
The answers lay within.
:mrgreen:
Did the home have electric baseboard heating?
It is most likely a demand controller. It will randomly shut the electric baseboard heating circuits off to keep the power consumption below a certain amount.
Yeah, I did that with a clock one time, and it didn’t really work out too well, Roy. Ever since, I don’t open them up if I don’t know what they are. :|.)
I’ve seen demand controllers in Boulder, David, none of them had windows, but that doesn’t mean this was not a demand controller.
Generator?
What did I win? Send me a bottle of tequila! :twisted:
I have never seen one exactly like that either. I took a look at the number of two pole breakers, that was my big clue.