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Overcurrent devices cannot be doubled up for higher voltages.

You need breaker designed for 220V. While you are technically correct, you need the 220V breaker because it is designed so that you always get 220V from the two phases (as opposed to 0V from one phase) and so both "breakers," so to speak, always trip together. Don't just use two 110V breakers you have lying around, it is not safe.

The approved method is to obtain a 2 pole breaker of the right amperage to run your 240 volt appliance. Also approved but not used as much is a common tie bar that incorporates the two breaker toggle handles into one. The reason for this is safety, if just one breaker trips there will still be 120 volts to ground on the un- tripped breaker. Anyone working on the appliance thinking that the power was off could get a severe shock. This holds true also with switches to turn off 240 volt loads, don't just use a single pole (SPST) switch which just shuts off one leg, use a double pole single throw (DPST) switch which isolates the load completely.

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โˆ™ 2015-07-16 19:31:01
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Q: If you have 240V going to a panel can you wire two 120V breakers for a 240V appliance?
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Related Questions

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

You will burn up your appliance!!!!!


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.


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

you get an adapter


How single phase 208 works without a neutral?

The potential of 208 volts is a three phase voltage. On a three phase distribution panel you can obtain 208 volts from any two adjacent breakers, just like 240 volts on a single phase panel. L1 - L2 = 208V, L2 - L3 = 208V, L3 - L1 = 208V. L1 - N = 120V, L2 - N =120V, L3 - N = 120V. 208V/1.73 = 120V.


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.


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


Do you have 120 volts or 240 volts if you tie two 120 volt lines together?

Do you mean tying two breakers together or tying two 120v wire together. You can tie two breakers together with a breaker tie bar if they are each on seperate legs of the panel and yes you will then have 240. If you are talking about tying 2 120v WIRES together BE CAREFUL! If those two wires come from different 120v legs of the panel you will have a direct short and a pretty serious spark to put it mildly. You should only tie 2 120v wires together that are on the same circuit. And you'll still have 120 at that point


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

Yes, no problem at all.


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.


What is the normal voltage of house clectricity in the US?

120v or 240v. 120v is one leg of the main panel, and 240 is two legs of the main panel. 120v is lights,outlets. 240v, dryer,stove.


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

Yes. It's functionally the same.


A system has 220v ac L and neutral can be possible two hot leg 120v ac be used?

yes, but the two 120v legs would have to come from breakers that are on the two different bus bars in the panel box, otherwise, you will get zero voltage between the two hot wires and 120 volts to neutral.


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

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


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.


Can you convert a 240V circuit on your service panel to two 120V circuits?

A 240 volt breaker can be removed and replaced with 2 - 120 volt breakers. The existing 240 volt breaker should not be used to supply 2 separate circuits.


Will 110V appliance work with a 120V outlet?

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


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.


Can a kitchen stove be on the small appliance circuit?

No, unless it's a gas range. An electric range requires 240V and 40A while a small appliance will be 120V and Max 15A.


If you have a 240V dryer and installed 30A breakers on both sides of the line reads 120 and 120 how do you get 240 and you have a receptacle that reads 30A 125250 and still does not work?

you do NOT put two 110v breakers in. you put 1 two pole breaker in. the panel is designed to give you 220v off one side OR the other side if you use a 2 pole breaker on one side or the other side. If you look at both 120V lines on an oscilloscope you will notice that they are both 120V to the neutral, but they are 180 degrees out of phase. This means that when one hot is at +120V the other is at -120V. So between the two you have 240V. If you put your meter across both hots you should see 240V. If you do not see 240V across both hots you (or an unlicenced electrician) has wired the outlet without using a proper 220V breaker. You do not see 240V because the hots are in phase, to the voltage differential is 0V, not 240V. 220V breakers cannot do this, unless forcebly installed in the wrong type panel. More than likely someone tried to wire it with 110V breakers.


Can you plug in a 120v appliance into a socket in UK?

No, the cord ends have different configurations to prevent this sort of thing from happening.


What are the steps in connecting 120V to a 240V 60A air condition panel?

you should have three wires into the panel. two of them go to the double breakers or pull switch and the last is the ground lead. You can pick up 110 vac from one side of either breaker and that ground connection. DO NOT connect to the both breaker wires as that will be 220 vac


Can you use a 120v appliance with a 240v supply?

It depends on what the appliance is. Some smaller appliances have a dual voltage switch which allows you to adjust the appliance to the supply voltage. Look on the manufacture's nameplate label to see what they recommend as a working voltage. There it will also tell you whether the appliance can be used on another voltage source. ==== Yes, you can. But it will fail ("burn out") almost immediately. If it's one that accepts either input voltage or if it has a little '120/240' switch on it, and you flip the little switch to the '240' position, then you're no longer talking about a "120v appliance".


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 make 30 amp 240v breaker from two 120v breakers?

No. It would not be safe because it would interrupt only one phase.


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

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