220/110

[48fordnut]

I need to get 110 off of a 220 outlet .how, with details. its a wall box going to my compressor. i need to pull the 110 off for a chop saw in another section of the shop. this is the closest.details please. thanks, jim.

 

[Charles (in GA)]

Problem is, the 220/240 outlet you have now probably does NOT have a neutral in it, most 220/240 doesn't. Without a neutral, you cannot get the 110/120 you want. You really need to run a new circuit. Save yourself headaches, illegal wiring, and all the rest. If you had a fire, insurance might deny due to the illegal/not to code wiring.

Charles

 

[jerryW]

Oler code usually allowed the 220v circuit neutrall to go thru the ground. Newer code has a seperate neutral and ground. At least on appliances.

It would be safer to run a seperate cicuit for the chop saw.


jerry

 

[rockwithjason]

The only safe way to do it is to make one of the hots into a neutral and downsize the breaker.

 

[MXtras]

Maybe this will help explain things a bit.

Scott

 

[bhays]

Maybe this will help explain things a bit.

Scott

That's a really nice diagram. Did it come from a particular web site, I would like to see more of those for different situations.

 

[DIGGER_DAVE]

Maybe this will help explain things a bit.

Scott

Scott, your diagram shows the current NATIONAL method of Neutral/Ground ties at the INCOMING PANEL.

However before any one tries to use a ground wire in a 220 outlet as the NEUTRAL to create 110/120 volts; DON'T!

Almost ALL electrical codes in North America DO NOT allow the use of the ground for the neutral or visa versa. (in the event of a fire; your insurance could be "null and void" if you do it!)

The ONLY acceptable method of wiring a 110/120 volt outlet; is to start at the panel with a Single Leg breaker and run #14/3 gauge wire (minimum) to the needed outlet.

There IS one exception. IF! a NEUTRAL IS run with the two "HOTS" (220 volt) AND a GROUND - FROM THE PANEL (total of 4 conductors; wire #gauge to match breaker rating) a 110/120 volt COULD be "tapped off." (but it would now be rated at the amperage of the breaker)

This set-up is normally only used with combination 220/110 volt equipment (using a 4 prong plug - twist lok for example) where the 110 volt leg is protected by it's OWN breaker at the machine. The dual voltage arrangement is often found in industrial welding machines

 

[48fordnut]

Been a long time,but a new line was run.

 

[rburke65]

Boy, I'll say it's been a long time! Did you just run it now.....recently or did you run it back in '06 and you're just getting around to posting? Good to have you back.

 

[coolreed]

FordNut you did the right thing by running a new circuit.

 

[daviomaron]

The only safe way to do it is to make one of the hots into a neutral and downsize the breaker.

 

[PWC Repair]

My whole house is wired like the little diagram. All my neutrals and grounds tie on to the same bar. That's just the way the older stuff was.