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Wiring 120volt and 240volt Electrical Outlets


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Summary: Fully Explained Photos and Wiring Diagrams for Wiring Electrical Outlets with Code Requirements for most new or remodel projects covering 120 volt outlets for specific and general purpose circuits and 240 volt outlets of dedicated circuits used for large appliances and equipment.


Wiring 120volt Outlets and 240volt Outlets for Home Electrical Circuits

Wiring electrical outlets for Range and Dryer Power Outlets in flush mount, surface mount and panel mount versions come equipped with heavy-gauge, double-wire copper alloy contacts.

To ensure correct wiring, terminals have ID markings. Flush mount receptacles fit a wide range of wall plates and mounting hardware.

The new code requirements of the 4-wire 220 volt and 240 volt outlets for clothes dryers provide for the required separate neutral wire.

Their is a lot of confusion about what to do about the electrical wiring connection with a 3-wire plug and a 4-wire plug. This is discussed and shown in the wiring diagrams on the pages linked at the right.



Electrical Wiring for 120Volt Outlets

outlets-110volt


GFI and GFCI Receptacle Outlets
Dishwasher Outlet
Disposal Outlet
Bedroom AFCI electrical-outlets
Switched Outlets
Half Hot Outlets


Electrical Wiring for 240Volt Outlets


Wiring electrical outlets for Range and Dryer Power Outlets in flush mount, surface mount and panel mount versions come equipped with heavy-gauge, double-wire copper alloy contacts.

To ensure correct wiring, terminals have ID markings. Flush mount receptacles fit a wide range of wall plates and mounting hardware.

The new code requirements of the 4-wire 220 volt and 240 volt outlets for clothes dryers provide for the required separate neutral wire.

Their is a lot of confusion about what to do about the electrical wiring connection with a 3-wire plug and a 4-wire plug. This is discussed and shown in the wiring diagrams on the pages linked at the right.



240 Volt Outlets

outlets-240volt


RANGE AND DRYER POWER OUTLETS



Kitchen Range and Oven Electrical Outlets

Clothes Dryers Electrical Outlets

NOTE: Both 220 and 240 volt outlets for the home are one in the same.

Newer homes have some 4-wire circuits which are referred to 120/240 Volt, which are typical for the electric dryer and the electric range.

In older homes you will find that the dryer or range may have the older 3-wire circuits which are commonly referred to as 220 volt circuits.


More About Wiring Electrical Outlets



related

Upgrading Outlet Electrical Wiring

William, from Winnipeg, MB, Canada asks: Hi I'm doing electrical in home which is over 100 years old. I was wondering if I can use the current 2-wire cable that is connected to two-prong outlets to supply power to new grounded outlets.

Dave's Reply: William, No - you should not use the existing 2-wire cable to connect to grounded outlets, unless there is an external or separate ground wire that is available at the outlet box. it is best to replace the old 2-wire un-grounded cable with new 3-wire cable which has the ground wire. The new electrical cable should be installed starting at the electrical panel where the ground wire may be bonded to the main ground terminal or system.

Outdoor Outlet

Alan asks: I'm installing an outdoor outlet. It's one that has a pole stuck into the ground. The question I'm getting is how deep into the ground does the pole have to be to meet code. The last person did a really bad job and this needs to be completely redone. I just want to make sure it's right this time.

Dave's Reply: Alan, this will depend on the type of support that will be used. For example a pressure treated post may be fine if it is 18 inches deep in soil, or 12 inches deep in a concrete footing. The support material and the environment should be considered.

Wiring Mess - Switching Outlets

Dan asks: I live in an apt complex; the guys that fix things do not really know what they are doing, so I usually just do my own repairs. There is a light switch that operates all four plugs on two different outlets. How can I make the switch only control one plug or even just one outlet. Thank you.

Dave's Reply: Dan, it will depend on where the power source is located, the power source being both the hot and the neutral. If the power source is at the outlets then the outlets can be rewired so they are hot all the time, but if the power source is at the wall switch then the conversion may not be possible without installing additional cable. It just all depends on how the outlets and switch wiring have been installed.



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Learn more about How to Wire Outlets
Complete Guide to Home Electrical Wiring
Perfect for Homeowners, Students and Electricians
Includes:
Wiring Home Electrical Circuits
Electrical Wiring for Disposal and Dishwasher
120 Volt Receptacle Outlet Circuits
240 Volt Appliance Circuits
Wiring for GFCI Outlets
Wiring Electric Dryer Cord and Outlet
Wiring a Range Cord and Circuit
Wiring Methods for Installing Electrical Wiring
Electrical Codes for Home Electrical Wiring
....and much more.

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