[tazman7]

Hi,

I am looking at adding a subpanel in my garage. The previous owners had a hot tub on the back deck so there is a 220v panel, but the hot tub is gone. I want to move the wires into the garage and add a subpanel to use for my 220v table saw.

There are two 6 gauge hot wires ran from the main panel to there and a ground wire that goes to a ground rod, no neutral.

Can I take a subpanel and put the two hot wires to it and connect the ground wire to the neutral bar?

 

[Arrow3030]

Does the ground go back to the main or does it originate in the panel and end at the ground rod? If the latter, this circuit should be disconnected as it was installed by a wannabe and is a major shock hazard. The ground must be connected where the circuit originates.

 

[rjniles]

Hi,

I am looking at adding a subpanel in my garage. The previous owners had a hot tub on the back deck so there is a 220v panel, but the hot tub is gone. I want to move the wires into the garage and add a subpanel to use for my 220v table saw.

There are two 6 gauge hot wires ran from the main panel to there and a ground wire that goes to a ground rod, no neutral.

Can I take a subpanel and put the two hot wires to it and connect the ground wire to the neutral bar?

No you can not. You need a 4 wire feed from your main panel, 2 hots a neutral and a ground..

 

[tazman7]

Ok so I now have four wires from the main panel-

2- 6 gauge hots
2- 8 gauge for neutral and ground

1- 6 gauge ground ran to a grounding rod in the backyard

I hooked up a 220 outlet to a 20 amp breaker with 12/2

For my air compressor i am confused: they have it wired with two hits and a ground so I would put the hots into the breaker and the ground to the ground- so that would leave the neutral bar with nothing connected to it?

 

[rjniles]

A pure 240 device like your table saw does not require a neutral.