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Can you make a 240V 3-wire outlet work from a old 240V 2-wire hardwired line for an old stove?

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2015-07-15 18:20:48
2015-07-15 18:20:48
for USA, Canada and countries running a 60 Hz power supply service.The two insulated wires would be your 220 legs and you have to scrounge around for the ground. Sometimes in older homes the ground wire was run outside the box and attached with a little clip on the face of the box. You might even see it wrapped around a screw in the back first. Other times, the old two-wire might be inside a conduit. In this case, the conduit was supplying the ground.

So, you can take a ground wire and attach it to the box using a self-tapping screw. This will provide your ground and you can then attach it to the receptacle.

If your system was supplied by a conduit just attaching a ground to the box may not do. Sometimes the conduit does not have continuity, meaning there is a break in the pipe fittings. About the only way to check this for you would be to check for power with a meter. You should have 220V between the insulated wires and 110V between each insulated wire and the ground.

If in any doubt, consult a qualified electrician.

AddendumIf you are fortunate enough to have conduit or old BX (steel sheathed wire) look into pulling new wire. If you only have 2 wires in the box, you may not be able to get a good neutral or ground connection to your appliance. You must have a good ground connection, and if you want this for a 220/110V appliance you need a good neutral connection. Without a good neutral you will burn up the 110V loads in the appliance. If you only have two wires, use them only if you absolutely cannot run something new. If you can run new wire, try to run four conductors instead of 3. This will allow you to install a more versatile 4 wire plug. For ovens and dryers old 3-wire plugs no longer meet the wiring codes for new work.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

If you do this work yourself, always turn off the power

at the breaker box/fuse panel BEFORE you attempt to do any work

AND

always use an electricians test meter having metal-tipped probes

(not a simple proximity voltage indicator)

to insure the circuit is, in fact, de-energized.

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Can an apt. stove be plugged into a outlet

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First make sure you know how to kill the circuit

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You still need a circuit breaker. From your question it appears your stove is hardwired to the panel. It is perfectly acceptable to connect it to a suitably specified outlet and plug for the voltage and amperes for the stove. Basically you would turn off the breaker, install an outlet on the floor or wall so as not to interfere with stove. You can buy cords with the proper plugs and mating receptacles in most any hardware store. For an electric stove with an oven you are usually talking about a 50A breaker and the corresponding outlet and plug. This can be dangerous and if you are not sure of what you are doing an electrician is highly recommended.

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The 4 prong stove outlet has 3 straight blades and a ground, and is rated for 50 amps. A dryer outlet has 2 straight blades for the hot conductors, and an L shaped blade for the neutral conductor, and a ground. The dryer outlet is only rated for 30 amps. A dryer male plug will not fit into a stove outlet, nor will a stove male plug with a dryer outlet. Note that although the stove plug is rated for 50 amps, the stove circuit is typically protected (fused) at 40 amps.

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the one ten outlet doesn't work on my stove

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You can't. If the stove requires 220 volts to operate, you will need 220 volts at the outlet first. 220v will also require at least a 30amp breaker.

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US NEC: You don't. If the stove has a four prong outlet, it is probably used in a mobile home application. Per the NEC, in a mobile home configuration for a stove you must maintain the ground separately all the way back to the distribution panel.

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it should be at floor level. That way the drawer can be removed to plug in the stove.

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Stoves are usually 50 amp,whereas dryers are 30 amp. A dryer outlet is not heavy enough gauge.

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Yes. The outlet on the stove should be rated to 15A 110V.

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Yes. A 30 amp rated dryer can be served by a 50 amp rated circuit. There is no requirement to change the breaker to 30 amps, but it is best to do so.

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Stove appliances can be bought from many different stores and retailers. Some examples of stores that sell stove appliances include Sears Outlet and Bed Bath & Beyond.

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The prongs on the cord are different. Dryer are angled and stove are straight. Don't ask me why. Somebody decided they should be different.

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Wood stove pipes can be purchased from many stores online and offline. Some examples of stores that sell wood stove pipes include Lowes, Rural King, and Wood Stove Outlet.

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Could be the outlet, could be an open wire, could be a loose connection. First thing I would do is check that the connections are tight. Then replace the outlet. That leaves the wiring... The connection is probably corroded. Check the plug, if it's black and pitted you probably should replace both the plug and outlet.

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I assume you are going from electric to gas. You can derate the outlet or run a new one. You should seriously consider simply adding a new outlet behind the stove so you can easily go back to electric.

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Some stoves do. It really depends on the kind of stove. The stove I use at home uses propane gas, so in this particular case, the answer is "no". But if your stove needs to be plugged into an electrical outlet in order to work, then the answer (for that particular stove) is "yes". Other stoves may use firewood.

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No you can not you will need to replace the plug with a 4 prong the same as the style of your oven and change your breaker to the correct Amp for your style of 4 prong plug

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As close to the floor as possible, or on the floor. Remember you want the range to sit back against the wall. So you must mount the outlet so it goes into the opening at the bottom of the stove. Otherwise when you plug it in, the plug will hit the back of the stove.

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change the4 wire stove plug to 3 wire plug! 25 dollars at most local stores.

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No, but if you ever switch to an electric stove you will have problems getting a 240 volt circuit to that location. I would go ahead and install a 240 volt outlet at that location if this is new construction. Costs very little and you will be all set for the future.

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You can't, you need an electrician to find out which wire is which.

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The outlet is telling you something is not right. There is a problem in the wiring or the ignitor insulation or the grounding of the stove.

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You can either hard wire the new one or install an outlet for the plug. It the wiring was done correctly on the old one, you should have a Black, Red and either white or a bare wire. Red and Black are power and white or bare is ground. Ask for a Range Outlet, they are different than a Dryer Outlet. Turn the power of first of course.


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