Reply by REO

this controls two separate circuits. one for the DC and one for the power tool. they could be the same circuit if you want it to be. I would mount it on the DC and wire the DC in. I would include a separate override switch to run the DC on its own or keep it off. one cord from the an outlet to the control to supply power for the tool and from there you have two possibilitys. one would be a controlled outlet to plug in tools or hard wire in an extension cord to use for a tool that you want to automatically start the DC with. I guess if you wish you could cut in to the outlet run that you have bet then you would get nuisance starts with every tool.