Romex Wire Gauge

Nm cable comes in many wire gauges but most household circuits will use 12 gauge or 14 gauge wire with either two or three conductors inside plus the bare copper ground wire.

Romex wire gauge. Romex will be labeled with 12 2 or the first number indicates the gauge of the wire. The cable includes a bare ground wire wrapped in paper. Choose from our selection of romex wire in a wide range of styles and sizes. What that number means is 14 gauge wire size 2 conductor which also includes a bare ground wire.

Wire size amps wire type 3 0 gauge 200 amps service entrance 1 0 guage 150 amps service entrance. Romex is used for most lighting and outlet circuits in your home. 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. Below is a chart of wire size for a given amperage.

Romex basic information for romex wire used in wiring residential homes. Romex is a brand name that is well known for manufacturing this type of electrical wire. The smaller the gauge number the larger the conductor size. Nm 14 2 romex has a black insulated wire a white insulated wire and a bare ground wire all 14 gauge.

You choices are typically 10 12 or 14 gauge. In stock and ready to ship. Romex is a cable of two or more wires enclosed in a plastic or rubberized sheath. For example a cable labeled 14 2 with ground will have two insulated conductors with 14 gauge wires plus a bare copper grounding wire.

The most common types of romex are rated only for indoor use and come in 14 and 12 awg wire sizes. Most 120vac household circuits are fine using a 12 or 14 gauge wire. 1 16 of 379 results for 14 gauge romex amazon s choice for 14 gauge romex southwire 28827422 50 14 2 with ground romex brand simpull residential indoor electrical wire type nm b white 4 8 out of 5 stars 472 19 62 19. The minimum wire size for a 30 amp 240 volt circuit is 10 gauge but to prevent poor performance because of voltage drop you should consider upgrading to 8 gauge if the outlet is far from the panel.

So when your needing a three conductor cable to wire up a basic 2 way switch you will need a 14 2 w ground cable.