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Electrical How to wire from 240 to120

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I need to wire up a 3 phase compresser motor, 9 wires wired 480, to change to 240 volt hookup. right now it is wired 3 motor wires to each hot, no nameplate or wiring diagram.


Please verify the existing connections to determine if they fit the "High Voltage" configuration listed below. If they do (and they should), the "Low Voltage" configuration below is then correct for 240.

Jaypug

Low voltage ...

L1---1--6--7

L2---2--4--8

L3---3--5--9


High voltage ...

L1---1 4--7

L2---2 5--8

L3---3 6--9

Dec 04, 2013 | Gb Electrical 100 Amp GE Load Center

1 Answer

To hard wire the charger for a 220 v 20 amp ..after i run the 4 wires into the unit (black to black red to red green to green ) where do i put the white it just has to places left one is marked with a...


Without knowing what kind of charger you're wiring, I have a couple questions: I'd like to see the circle and square icons you are describing - and I'd like to know the name and model of the charger you have. Failing that; I can offer a couple things: First, you should attempt to obtain the wiring information for the device.

I would tend to agree that "black to black red to red green to green" are most likely going to be correct, where, red and black are both line voltage wires on a 240 volt system - and green is ground or "equipment ground".

White wires, are generally "neutral" or the common point between the two line voltage wires. As such, it has a 0 volt (or very, very low) potential to ground Many 120/240 volt systems also ground this common neutral point, but this does not happen all the time - and should not be done unless required by local electrical code and electrical system.

Most 240 volt devices do not make use of a neutral wire, unless the device or appliance needed 120 volts for a part of it (the clock or frying pan outlet on old electric ranges comes to mind). If a neutral were introduced, it would really become a 120/240 volt device instead of a device that could be wired straight 120 or 240 volt. If the charger you have is indeed a 240 volt device - and does not need a 120 volt circuit, you should be able to omit the neutral connection. If I knew the info I'd like to have in my first paragraph, would make me feel much more comfortable offering this advice.

I hope this helps & good luck!

Sep 20, 2011 | GPS

1 Answer

Frigidaire LC-240H-W*2 change heating from 240 to120


the heating element is always 120 volts.

the two lines from the breaker box to the dyer consist of two 110 volt lines which one runs the motor and one for the heating element

May 21, 2011 | Dryers

1 Answer

How do you connect the LG DLEX5101V Dryer to the electrical outlet on the wall if there is no cord to plug in?


There are a couple of types of plugs in homes - and the dryer manufacturer use this excuse to not ship a cord with the dryer - profiting that much more. You'll need to purchase a cord set for your dryer. Assuming you live in the U.S., that means you need a 30 amp 240 volt cord. That's easy enough, but it does get harder.

Most homes have an outlet that has three slots in it - like the one below:
steve_con_39.jpg
A 240 volt, 30 amp, 3 wire dryer plug.

New homes have a safer, 240 volt 30amp 4 wire plug. They look like the one below:
steve_con_40.jpg
A 240 volt, 30 amp, 4 wire dryer plug.

The code states that when a dryer is purchased it should be connected via a 4 wire cord. This means if you have the older, 3 wire outlet - it will have to be changed along with the entire length of cable between the electrical panel and the outlet (the new outlet needs a 4 wire cable - the older plug was supplied by a 3 wire cable).

Those are the rules. Many people opt to purchase the older 3 wire cords so that they can connect directly to the 3 wire outlet already installed in their home. As an electrician, I have to caution you on doing that. It is a violation of the electrical code as it has been identified as an unsafe condition. The code hopes to rectify this by slowly requiring new dryers to be wired with 4 wire cords and making the homeowner upgrade the old 3 wire outlet to a newer, safer 4 wire outlet. Of course, no one will come to see what you had and if you changed it, etc.

Mose hardware stores, Home Depot, Lowes, etc. sell these cords for under $20. Make sure you choose a 30 amp dryer cord - and not the similar looking but thicker 50 amp stove or range cord.

I hope this helps & good luck! Please rate my reply.

Mar 22, 2011 | LG Dryers

1 Answer

How to wire a vulcan for 240 installation


find power box. see if you have 2 spare breakers avail. next determine power requirement for appliance example 20 amp./ 30 amp breaker a 30 amp load will require a larger wire size example # 10 wire always consult owners man. or manf.instructions reg. if 208/240 is ok should say in owners manual always follow local/ nat electrical codes.

Jan 14, 2010 | Kitchen Appliances - Others

1 Answer

Where do i connect load wires to 240 volt baseboard heater


240 load goes to 240 supply if on all the time
or 240 load goes to one leg of switch other leg goes to supply

Oct 27, 2009 | Dayton G73 Utility Heater

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Wattage for oven pleb30s9fc


  • Connected Load (kW Rating) 240/208 Volts: 3.5/2.6
  • Amps @ 240/208 (Approx.): 14.6/12.6
  • Minimum Circuit Required - Amps: 30
  • Bake Element Wattage 240/208 Volts: 3400/2554
  • Broil Element Wattage 240/208 Volts: 2750/2065
  • Armored Electrical Cable
What kind of wires did you buy?

Jul 25, 2008 | Frigidaire PLEB30S9DC Electric Single Oven

1 Answer

What is a receptacle?


When you plug something into a conventional duplex receptacle (the type that receives two appliance plugs), and the device doesn't work, trouble shooting the problem is fairly simple. For large receptacles that run on 220 to 240 volts, such as ranges and dryers and air conditioners, call an electrician unless you're well-versed in electrical repairs and safety issues. Always check when installing if the appliance is rated from 15 to 50 amps, 240 volts, and 20 to 50 amps, 120/240 volts. They have two hot wires (red and black) and a separate grounding wire. Receptacle basics Conventional duplex receptacles have two places to plug in electrical cords or devices. Each of those two places includes one narrow slot, one wide slot, and a semicircular hole. The narrow slot is the "hot" side, connected to the black wire of the electrical system. The wide slot is the "neutral" side, connected to the white wire. And the semicircular hole is the ground, connected to a bare or green wire or the electrical system's ground. Many electrical plugs have one wide blade and one narrow blade (and, in some cases, a ground plug) that match the receptacle's slots to insure that the circuit is properly connected to the electrical device. Wires may be attached to screws on each side of the receptacle or plugged into terminal holes in the back of the receptacle. Whether wires attached to screw terminals or are pushed into rear-mount terminals, the screw terminals on the sides of the receptacle are hot (charged) so don't touch them!

Jan 18, 2006 | APC MasterSwitch Power Receptacle - Power...

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