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The hot wires were connected to the outside blades on the plug end. The neutral was connected to the center blade. The neutral wire was hard wired to the frame with a copper strap and the neutral was used as a ground conductor. With a four wire the copper strap is removed and a separate wire is used for grounding purposes from the frame of the device back to the ground bar in the distribution panel.

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Q: How were the old three wire outlets for dryer and ranges wired before the four wire came about?
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Is 60 amps enough to run a household dryer?

60 amps is twice the amount that you need for a household dryer. What you need is a two pole 30 amp breaker feeding a three conductor #10 cable. A dryer needs a neutral wire, hence the three wire cable for a 240 volt device.


Is an adapter to go from a 3 prong dryer outlet to a 4 prong dryer cord available for purchase?

I would not recommend trying to use an extension cord for a dryer. the better option is to either buy a longer cord that is properly sized to deal with the extra distance or have an electrician come out and either move the outlet or custom make you a longer cord for your dryer.


What if you have four wires running to your dryer outlet and the outlet is only a three prong one wire is just hanging out is this really even safe?

Have the outlet changed to match the configuration of the dryer plug.


How do you change the plug on your clothes dryer cord from three prong to four?

You have to go buy a new four prong chord, unscrew the base of the old chord, and switch them out.


Is there any conversion plugs to go from a 4 prong 240 volt dryer outlet to a 3 pronged dryer wire?

for USA, Canada and countries running a 60 Hz supply service.Well, yes, and no. You CAN'T just disconnect the wires from the 60 amp outlet and connect them to three 20 amp outlets. It would be more like tearing out and rebuilding than converting. The 240 volt outlet has a hot wire from each side of the breaker box and each can supply a series of standard outlets if you replace the 60 amp breakers with 20 amps and pull 12 gauge wires.Actually you CAN just disconnect the wires and connect several 20 amp outlets, IF you change the breaker to a 20 amp one. The breaker/fuse has to be sized for the lowest current link, in this case it is not the wire but the outlets. The wire will be oversized but it does not need to be replaced. Some older dryer circuits also did not include a ground, so you will have to run a grounding wire or install a GFI.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.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.

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Do 3-prong cords have difference requirements.. I want to buy a used stackable washer drying and install it where my old stackable was. If the funking plug fits the outlet - am I good?

All three prong dryer cords should fit all three prong outlets. Dryer and stove plugs are different but as long as someone didn't use one in place of a dryer cord, there isn't a problem.


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