Richard J Kinch wrote:
Ignoramus24987 writes:

I do not think that you can get solid state relays much cheaper than
contactors.

They are available cheap on eBay, but mostly these are used units swapped
out from planned maintenance.

I have a small supply of new in the box Crydom 2425s. $10 each, that
includes shipping in the continental US. They were for a project that
never happened.