I'm looking at changing a 1 HP pool motor to a two speed motor to save energy. A motor running at half speed can move the same amount of water using a lot less electricity. The problem is the system has a solar heater and from researching online it appears that there is a good chance that the pump will need to start on high speed to get it flowing, then it can switch to low speed to keep it going.
So, the question is, any suggestions for an appropriate 240V time delay relay, ie a relay where there is either a fixed or adjustable time delay of about a minute? I've looked online and there appear to be a lot of them, but they are either for rack mounting or else they have some kind of pins that then plug into a socket. I guess I could find a socket, figure out how to mount it, etc, but I was wondering if anyone knows of a relay better suited to easily mounting/wiring into a typical electrical box? Will need a box for a low/high switch and looking for something that could easily go in there. I may not need it if it will get going on low, but figured it's kind of slow here lately and might as well be prepared.
TIA for any help.