Reply by Firewood

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Posted on Two Tools running at the same time on One 30 AMP 240V Circuit, Possible?

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1298 posts in 2484 days

#1 posted 01-21-2018 04:01 AM

Your only option to keep it safe is to put in a sub panel. Not really too big of a deal. You can probably get by with 60A. An electrician can verify your main is up to code when he adds the circuit for the sub.

The sub does need separate neutral and ground within the sub panel. This prevents the sub panel from using a different ground path that have a different ground potential. So utilizing 6-3 plus ground wire for your sub panel feeder ensures the sub is grounded to the same ground source as the main.

I’m not an electrician, nor do I play one on TV. Just my own research and knowledge from working in IT for too many years. In the end, hiring an electrician is money well spent.

-- Mike - Waukesha, WI

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