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Auto Vaccum switch.

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I have made in the past with an ESP, an auto on vacuum. With the ESP I need to add a current sensor and power source for the ESP.  It work ok, just not great. 

The purpose is to turn on a small shop vac when a tool is turned on.  

Example; When a chop saw is turned on and the Shelly senses current flow, then it turns on a shop vac.

I was thinking something like the attachment. 

Thanks in advance for your input.




Auto Vac.pdf

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