14-2 or 12-2 Romex® cable (depending on how much load you need from the outlet).
Size circuit breaker for wire size. If a 14-2 cable is run from the panel to the outlet, then a 15 amp circuit breaker is the largest that can be used to protect that circuit. If a 12-2 cable is run from the panel to the outlet, then a 20 amp circuit breaker is the largest that can be installed to protect the circuit. 5. Support cable. Otherwise, a 12-2 Romex® cable, which is one size larger than 14-2 Romex® cable and suitable for up to 20 amp circuits (or 16 amps continuous load) is the other size cable installed for outlets. Most home's outlets are wired with 14-2 Romex®, that supply up to 8 outlets per circuit. If a 14-2 cable is run from the panel to the outlet, then a 15 amp circuit breaker is the largest that can be used to protect that circuit. If a 12-2 cable is run from the panel to the outlet, then a 20 amp circuit breaker is the largest that can be installed to protect the circuit. 5. Support cable. Romex ® is a brand name that is well-known for manufacturing this type of electrical wire. Romex NM cable, (pronounced rome-ecks), and competing brands of cable contain two or more insulated conductors (wires) in a flexible plastic sheath that can be run through walls, under floors, through attics and so on.  Romex is used for most lighting and outlet circuits in your home. Romex will be labeled with 12-2 or 12-3. The first number indicates the gauge of the wire. You choices are typically 10, 12, or 14 gauge. The second number indicates the number of conductors. Romex Cables. Romex (shown in yellow above) is the trade name for a type of electrical conductor with non-metallic sheathing that is commonly used as residential branch wiring. In fact, Romex will be the most common cable you'll use in wiring a house. The following are a few basic facts about Romex wiring: Jupiterimages/Brand X Pictures/Getty Images. Determining what wiring to use for a particular outlet takes more than just picking a wire gauge. A lot depends on where the outlet is located, the type of outlet in question, the anticipated load on the outlet and local electrical codes. Understanding these variables takes the guess work out of selecting the proper wiring for safe outlet installation and use. The History of Romex®. The Romex ® brand of Non-Metallic Building Wire (“NM”) originated in 1922 with its development by the former Rome Wire Company, a predecessor to General Cable Corporation. On September 5, 2001, Southwire purchased the electrical building wire assets of General Cable Corporation. One of the most valuable assets purchased by Southwire in that acquisition was the Romex brand of Type NM cable. The Romex brand of Type NM cable has now been promoted and sold by Southwire and its predecessors for 88 years and Southwire considers its Romex trademark to be one of its most valuable brand names. How to determine what size romex wire you need is easy. You've got a small electrical project to tackle but you're not sure how to go about determining what size romex cabling you need. Do you get the 14 gauge romex wire/cable or do you get the 12 gauge wire/cable?  How to Install an Electrical Outlet from Scratch. In order to install an electrical outlet and circuit from scratch you need a roll of 14-2 or 12-2 Romex® cable (depending on how much load you need from the outlet) and either a new work box, or an old work box. Ad. If a 14-2 cable is run from the panel to the outlet, then a 15 amp circuit breaker is the largest that can be used to protect that circuit. If a 12-2 cable is run from the panel to the outlet, then a 20 amp circuit breaker is the largest that can be installed to protect the circuit. 5. Support cable. MC Cable vs UFB Underground Cable. Romex NMB is the type of electrical wire that is used indoors to run 2 or 3 THHN wires through your home at once. Type NM-B (nonmetallic-sheathed cable) may be used for both exposed and concealed work in normally dry locations at temperatures not to exceed 90&degC. Romex cable is primarily used in residential wiring as branch circuits for outlets, switches, and other loads. NM-B cable may be run in air voids of masonry block or tile walls where such walls are not wet or damp locations
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what kind of romex for outlets