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How can you change a 3-prong 240V outlet for a 3-prong cord for a 120V appliance?

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βˆ™ 2011-07-18 20:06:43

Best Answer

For USA, Canada and countries running a 60 Hz supply service.

If you're asking this question you shouldn't be installing an electrical service.

If someone were to give you an answer here, you might attempt to do something you shouldn't be doing, and that may cost someone a shock, a home fire, or their life.

If you don't want to have a new 120 volt branch circuit correctly installed in that area, to be able to use the appliance there, you should just plug it into an existing 120 volt outlet somewhere else.


You want to power an appliance which has a 3 prong 120 volt plug: One hot, one neutral, one ground.

But, where you want to use the appliance, you have a 3 prong 240 volt outlet: Two hots and one neutral or one ground.

So you either have the ground and not the neutral or the neutral and not the ground.


As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.




2011-07-18 20:06:43
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Related Questions

What happens if you plug a 120V appliance into a 240V outlet?

You will burn up your appliance!!!!!

How do you plug a 120V appliance into an outlet wired for a 240V?

you get an adapter

Can you plug a 120v appliance in a 115v outlet?

Yes, no problem at all.

Will a 120V appliance work on a 115V outlet?

Yes. It's functionally the same.

Can you use a 125V appliance in a 120V outlet?

No problem what so ever. The 125 volt rating on the appliance is the maximum amount of voltage that is recommended for the appliance. This recommendation is set by the manufacturer of the appliance.

How can you convert a 3 prong 240V appliance outlet to 120V without rewiring and replacing the outlet?

If you need to ask, you should have someone who knows how do it....

Will 110V appliance work with a 120V outlet?

Yes, as long as the device is within 10% of the rated voltage.

Can you plug an 110V appliance in a 120v outlet?

Any 110 volt appliance is designed to be plugged into a 120 volt outlet. 120 volt outlets generally supply between 105 and 120 volts.

Can you plug a 110V appliance into a 115V outlet?

You should have no problem as long as the pug fits into the outlet. Common house hold voltages range up to 120V.

Can you buy a 120v appliance and use it with a 220v outlet?

A high voltage will certainly damage a low voltage appliance and perhaps set fire to other things nearby.

What happens to the amperes if you plug a 220V appliance into a 120V outlet?

The amps drawn will be cut in half but the appliance motor, if there is one, may not be able to start up and burn up.

Would 220 volts appliances from England work on 120 volts in US?

You cannot use a 220v appliance to a 120v outlet.

How do you change 120v appliances into 240v appliances?

You don't unless it shows a dual rating on the appliance.

Is 120vac equal to 120v?

Ummm yes ? If your talking about a wall outlet yes you can have 120v dc but not at an outlet

Can you plug in a 100v plug into 120v outlet?

No you cannot plug a 100v into a 120v outlet, it will fry whatever the product you are plugging up.

Can 120V appliance work with 220V?

120V appliance will not work on 220V. Use an instrument transformer or voltage regulator to adjust the high voltage to the desired level.

Can 240V washer run on 120V outlet?


Which slot of an outlet is hot?

In the US on an 120v 15a outlet it's the short slot

Can you convert an existing 120V plug on an appliance to a 240V plug not speaking of a converter but actually changing the plug so there are no long term effects on the appliance?

If I understand your question, Can you run a 110 appliance off of a 220 volt outlet? You could by only using one leg of the 220. You may also consider changing the outlet. Put in a regular 110 outlet and capping off one leg of the 220 in the wall box. You still have a neutral and a ground to work with. I read this as the questioner doesn't want to modify the outlet. Check the voltage ratings on the device. Many electronic devices nowadays can havdle 120V or 240V as it is cheaper to manufacture one powersupply and sell it everywhere. If your device is rated for 240V, you can put a 240V plug on it. If it only says 120V, no dice. 240V will burn it up.

In a home that has 120 Volt service there is an electric appliance that has a resistance of 12 ohms How much power will this appliance consume in watts?

120V / 12 ohms = 10amps. 120V * 10amps = 1200 Watts.

How do you plug a 240V appliance into an outlet wired for a 120V?

You don't. The plug (cap) has a different configuration between the two voltages. This is to prevent plugging a device of one voltage into a supply of a different voltage.

In a home has 120v service there is an electric appliance that a risistance of 12 how much power will this appliance consume?

1440 Watts

Can you run a motor 120V 60 Hz 4Watts straight from a wall outlet?

Yes, assuming the wall outlet produces 120V 60 Hz at at least 4 watts.

Could an electrical outlet that is 240V accept a 120V appliance?

No, you will burn up the 115 volt appliance very quickly. &lt;&lt;&gt;&gt; The pin configuration of the 240 volt receptacle is different from a 120 volt pin configuration. This is a safety factor to prevent the wrong voltage being applied to the wrong devices.

How can you convert a 240V clothes dryer to 120V?

You really cant do it because a 220 has a heating element in it to dry the clothes unlike gas that uses fire to dry the clothes and the 120 is to turn the drum.Your drier will keep poppin breakers which isn't good at all.Outlets and Power(110V outlets and 120V outlets are practically the same for this discussion. I will refer to them as 120V. Same with 220V/240V outlets.) By 110V outlet I'm assuming you mean a standard US 120V 15A outlet.This outlet can provide a maximum of 15A at 120V. This means the outlet can provide 1,800W of power. ( Volts x Amps = Watts ) This is the maximum amount of power this outlet can provide, no more. Also, this is assuming nothing else is drawing power off the circuit this outlet is on. If you try to pull 1800W from an outlet and plug anything else into this circuit, the breaker will blow.Your dryer is designed to run off a 30A 240V circuit. Let's say, for argument, it draws 24A at 240V. This means your appliance requires 5,760W of power to run correctly. This is 3.2 times the absolute maximum amount of power your 120V outlet can provide. There is no way you can run this appliance off this outlet. You have a larger problem here than the voltage difference.You can't, you need both a and b phases. You need to install an 240v receptacle.And don't upgrade to 240V by using the same wires!! Some complete idiots will try this and burn the neighborhood down.