I have a well pump (240v) that I’d like to detect when it is engaged and have ability to send the engagement of the pump either over an API or to IFTTT. Not needing amount of energy used or such data. I have a wire that goes from the pressure switch, through the basement wall and out to the well so I have a wire that is fully off when the pressure switch is not engaged.
Be careful - Are these rated to handle/detect high Amp? One would also have to consider whether the starting power load of the pump (which is an inductive load) would kill/overload the Shelly or not, or would introduce fire hazard or not.
Wouldn’t it be better/safer/more interesting to add a flow meter on the pipe instead?
I assume this is for drainage or something, then having a flow meter could be more useful as it could detect if the pump is blocked (or at least haven’t ran in a long time).