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Have a 220v 3 wire circuit: red, black & green. can I use the green ground as a neutral for a 110v circuit?

3 wire 220v box, only need a 110v plug. Can use ground as neutral? along with red as hot.

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Yes you can but that's not how it is suppose to work. The green is normally a safety ground. On a normal 120 volt circuit , the black is hot, the white is neutral, and the green is your safety ground. If you use the red as hot, and the green as neutral , then you do not have a safety ground. Plus, the circuit would not be protected by a breaker. I would say don't do it. Run an extension cord or put in another wall outlet.

Posted on Nov 18, 2014

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I wouldnt do this just because you might have some other things being grounded inline.
Chadman

Posted on Nov 18, 2014

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Posted on Jan 02, 2017

jsrock516
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SOURCE: Electric Dryer

If your dryer came with a 4-prong plug, do not change it. For the very reasons you quoted with the article, you may screw up the 110v accessories required of your appliance (like the clock or digital display). It is best to change the household outlet to a 4-prong type. Just make sure your wiring is correct. You will need a neutral on the 4th leg, which means you will probably have to run new wiring from the outlet to the distribution panel.

Posted on Jul 01, 2007

TheMobilian
  • 8220 Answers

SOURCE: Changing from 3 prong to 4 prong cord

The white wire goes in the middle between the 2 hot wires. 0c0b03b.jpg

Posted on Mar 19, 2009

SOURCE: I need to wire a 2HP 110V ge motor to 220V

I think the only place you will get this info is from GE -- and good luck with that.

Posted on Apr 29, 2009

SOURCE: need to install a 4-wire/ prong dryer cord strain relief assbly

The green wire attaches to the dryer cabinet. There should be a green screw in the cabinet for attaching the wire. If not, you can always drill a hole for a ground screw.

The loose green wire you see is the reason the code was changed to a 4-wire cord.

Posted on May 06, 2009

TheMobilian
  • 8220 Answers

SOURCE: connceting a 3 wire 220v

Here is the correct 3-wire and 4 wire dryer config:
themobilian_2243.jpg

Posted on Apr 27, 2011

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1 Answer

How do I wire 110v from a 220v box?


You have two wires in the box that will read 220 plus
volts to the ground wire,the box if grounded & to the
white neutral

So pick one of those wires,(black or red ) for your short
recepticle slot & gold screw & the white neutral goes to
the silver screw & longer slot

Put a wire nut on the other 220/240 wire, if it isn't going to be used

Have to ID the breakers for the wires first & know what is on
those circuits.

Will need to change the breaker out if your running a dedicated
120 volt circuit & then you will have an open space you will need
a plastic cover for, when you remove the 2 pole breaker

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1 Answer

How to wire air compressor motor to 220v


Insulate brown means cap and tape.

240Volt should not have neutral wire
http://waterheatertimer.org/Basic-house-wiring.html#basic-wire
http://waterheatertimer.org/images/Inside-Main-Breaker-Box-12.jpg

240Volt coming from breaker box will have 2 hot wires... and either hot wire is same no matter wire color

http://waterheatertimer.org/Color-codewire.html#motor

Gene

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2 Answers

I have white, black and ground out of wall, i have red, black, white and ground from oven, how do i connect


Unfortunately you can't. Your wall outlet is a 110V circuit (B-110V; W- common) and your oven needs 220V circuit to operate. Red - 110V; Black - 110V; White - Common.

You will need to installed a 220V, 30 AMP (10-3/w ground) homerun from your circuit breaker panel to the oven

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Model T104P wiring instructions for 110volt motor


T104 timer is for 240 Volt circuits. It has internal 240V clock motor. Clock terminals and timer terminals are connected, so there is no way this timer can control 110V circuit.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

T101 timer is for 110V circuit.
T101 has 110V clock motor
Both white neutral wires = terminal A.
Black hot wire from breaker box = terminal 1
Black wire to load = terminal 2.
Grounds = green screw
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T103 timer is for 110V circuit
T103 has 110V clock motor
Both white neutral wires = terminal A.
Black hot wire from breaker box = terminal 3
Black hot wire to load = terminal 4
Grounds = green screw

T1905 timer is for 110V circuit.
T1905 has 110V clock motor
Both white neutrals = Clock terminal
Black hot from breaker = COM
Black to load = NO [load comes on when timer turns on]

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Utilitech Wall Timer #0192773 does not switch landscape lights on? Replaced Intermatic that had 3 wires. Black to Black, blue to black and red was capped. Utilitech came with 4 wires - black, white,...


Old timer: Intermatic EJ500 & ST01C timers have a battery. Battery operates the clock motor. Red wire is for 3-way circuit [a hallway with 2 switches is a 3-way circuit].

Utilitec timer, clock runs on 120Volt circuit instead of battery. So clock has to have power.

How to connect wires:
Black timer wire connects to hot wire from breaker box.
Red (or blue) timer wire goes to landscape lights.
White timer wire connects to white neutral wire [or if no neutral is available, connect to bare ground wire].
Green timer wire goes to bare ground wire.

How to find black hot wire and white neutral wire inside box
: Disconnect and separate wires so you can test. Use ordinary tester. Power is on. There is only 1 black hot wire inside each electrical box. Test each black wire to bare ground until tester light comes on > that identifies the black hot wire. Next, test black hot wire to white wires until tester light comes on > that is the neutral wire. Exception: This test does not necessarily work with 3-way switches since they reverse each time switch is thrown.

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1 Answer

I am trying to change a 3 prong dryer plug to a 4 prong


Hi,
You are correct, the green wire is ground. You may be able to connect to the same location as the green wire from the unit.
The white is neutral and the red and black are both 110V (your unit uses 220V).
Here is a link to a picture. I hope it helps:

http://repair2000.com/cord.html

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1 Answer

Need to change wiring from 220V to 110V


Black or red is hot; green is ground; white is your neutral. The black should be for 120 and the red for 220.

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First & Third space in GE TPL412RP are hot, second &fourth not


This is not 3 phase power...you have two legs of 120 ...the red wire? This leg is not a voltage source therefore that wire is not going to fire up that lug ...you only need 3 wires to make this circuit and a neutral is a redundant leg for this box

Jun 28, 2009 | General Electric G.E. - INDUSTRIAL SYSTEMS...

1 Answer

Wiring diagram


This model of cook top needs the 4 wire install because it has both 220v and 110v circuits. The forth wire is a neutral that operates the 110v circuit. You can move the ground of the 3 wire outlet to neutral, but ONLY! if the ground wire is insulated. What this will do is give you both your 220v and 110v circuits. The problem with that is your cook top will not be grounded. The best solution is to locate a neutral wire and tap into it, this will give you your 4 wire circuit. Your missing a neutral in a 3 wire outlet.


More Asst.
eboukater@gmail.com

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