Rather that detect the current at the saw outlet, why not splice a connection at the table saw at the switch and "Y" an outlet for the shop vac?
The load will be a table saw 1.5Hp, 120V, if i am reading the plate on the moter correctly 13A.
When i start the saw I want the relay to trip and enirgize the other outlet which will have my shop vac pluged into it. I could not find the specs for it. but it is a small 1.5 gal. shop vac. Whenb i turn off the saw i want the relay to open so the vac turns off.
I wil get or make a box large enough to fit what ever components are needed.
I really appreciate the help. What components do I need to get?