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First off you must make sure that your generator has overcurrent protect. This comes from article 445 in the NEC. Then size your wires accordingly. Then hook up your 2 hots, neutral, and ground, making sure you use wire that is listed for a wet location. Your pump will need a disconnect along with overcurrent protection.

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โˆ™ 2015-07-15 19:16:51
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Q: How would you wire a generator 120V 240V 4 prong twist-lock outlet to a 3 wire 1 hp 240V well pump?
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Is there an adapter to go from an emergency power generator with a 3-prong 240V outlet to an input box for a transfer switch with a 4-prong connector?

Neutral is vitalIf your generator doesn't have a neutral connection, no. (The generator would be rated for 240V only) If you don't have a neutral you will burn up half your 120V applainces. AnswerThe three prong should plug into the 4 prong and work. The fourth prong is to ground the body of the appliance. Three prong may only ground the motor. Instead of 2 power and 1 gound, the box is 2 power, 2 ground. Should still plug in.

Can you plug a four prong dryer into a three prong outlet or is there an adapter you should use?

The best thing to do would be to replace the outlet with a four prong outlet. That way you get a separate equipment ground which is required by the newest code. Otherwise you could replace the cord on the dryer with a 3 prong cord, and connect the ground and neutral together in the dryer, but this is no longer recommended.

What would be a correct prediction for the purpose of the round prong?

it also carries curent from the outlet

How much would it cost to replace a 3 prong dryer outlet with a 4 prong dryer outlet?

Have to have 4 wires from panel so a change of feed is needed. So over a $100 dollars at least

How do you wire a 3 prong 240V outlet?

Explain what you mean by "3-way outlet". I've heard of 3-way switches, but not 3-way outlets. I would guess the person asking the question is asking how to wire a three-prong socket, as opposed to a four-prong socket...

You just moved in your new home and the outlet for the dryer is a 3 prong your dryer is a 4 prong you should you do?

Change either the plug or the cord. The fourth prong is another ground. It would be easier to change the cord.

How can you connect a 4-prong generator to a 4-prong dryer outlet?

Your question is likely based on the mistaken impression that you can power your house this way if there is a power outage. If you are even thinking this you are not capable of pulling this off without potential dire consequences. There is no polite way to say this, you would be stupid to try this. McIver could do this, but you shouldn't try this unless you want to burn down your house and perhaps kill you and your family. To provide backup generator for your house you need an automatic or manual transfer switch to connect the generator.

How do you make an extension cord that would be a four prong male plug on one end and a three prong outlet on the other for 240V 50A that would plug into a generator to power a welder?

Answer for UK, Europe and countries running a 50 Hz supply service.A four-prong socket on the generator implies that it's a 3-phase generator.The welder appears to be single-phase load working at 240 v 50 A but provided the generator is rated at 415 v 36 kVA that means it can supply 240 v 50 A on each phase, between line and neutral.Given the voltage and power of the generator an electrician should be employed to identify the socket correctly, do the wiring and ensure earthing is correctly completed. Without this the system is dangerous, someone could get electrocuted.

How would you wire a generator 120V 240V 4 prong twist lock outlet to a 3 wire standard outlet?

If you properly connect a 3 conductor cable to a 4 prong twist lock plug end this can be done. You must be sure that the grounding conductor and neutral are connected to the right terminals. Then the hot conductor, probably black, will connect to only one of the hot terminals. It wouldn't matter which. In this configuration you have 120v supplied from a 240v twist lock outlet and the cable can be connected to anything that requires just 3 conductors and 120v.

Can you hook up a 20 amp applicance to a 120-240V outlet on a generator?

Depends on the rating of the generator. You must match the appliance voltage to the same generator output voltage. In this case if your appliance was 120 V you would need a generator with a rating above 2.4 KW.

How can you get a 20 foot long or longer 3 prong power cord for your clothes dryer?

As far as I know, you can't. It would be safer to have a new outlet installed closer to the dryer.

Can you change a 2 prong outlet to a 3 prong outlet?

I have a question about this 3rd wire. So in this old house, wired with only 2-pronged outlets, apparently an electrician came in and added some 3-pronged outlets, on opposite sides of the living room. Now the kitchen still has only 2-prong outlets, but we want to plug in our microwave oven (which of course has a 3-prong plug) in the kitchen, not in the living room.Here's the deal: the wall that separates the living room from the kitchen is one that has a 3-prong outlet installed. To make things even more opportunistic, the 3-prong outlet (facing the living room) is mounted to the same stud as a two prong outlet facing into the kitchen.You should know where I'm going with this: instead of running the 3rd wire from my kitchen 2-prong all the way back to the electrical box (in order to convert it to a 3-prong), can I just run a short ground wire to the ground on the adjacent 3-prong and call it a day? I would have a nice installation because I could fish this wire between the two outlets inside the wall. My tester indicates that the 3-prong has a good ground, but I know that it was installed later than the rest of the house and is definitely on a separate circuit. Is there a problem with this approach? <<>>There is no problem doing this at all. It is safer to have an unorthodox ground that none at all. Your approach is no different that normal home branch circuit wiring, that all receptacles on the circuit share the same ground wire. This is the more sensible approach that just changing the kitchen two wire receptacles to three wire receptacles and not connecting the ground at all. Well, to do it properly would mean redoing the wiring as well, as the 3rd prong needs a wire too.

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