- What is 10/3 NM-B wire used for?
- It is used for 30-amp indoor branch circuits, such as electric dryers, ranges, water heaters and 240-volt outlets that need a neutral. The three insulated conductors plus ground give you two hots, a neutral and a ground.
- Can I use this wire outdoors or underground?
- No. NM-B is rated for dry indoor locations, including inside walls and ceilings. For wet or buried runs, use UF cable or conduit-rated wire instead.
- How many amps can 10-gauge wire carry?
- In typical NM-B residential wiring, 10-gauge copper is used on 30-amp circuits. Confirm the breaker size and any derating with your local code before installing.
- What is the difference between 10/2 and 10/3?
- 10/2 has two insulated conductors plus ground; 10/3 adds a third insulated conductor, usually a neutral. Choose 10/3 when the appliance or outlet needs a neutral, as dryers and ranges do.
- Is 25 feet enough for a dryer circuit?
- Only if the run from the panel to the outlet is under about 25 feet with slack for stripping and box connections. Measure the path first; longer runs need a larger roll.
- Does it come with a ground wire?
- Yes. The cable includes a bare copper ground conductor along with the three insulated wires.
- Where is the Southwire 25' 10/3 NM W/G Indoor Wire Orange cheapest?
- At Ace Hardware, for $124.99, as of our latest check.
- Where can I buy the Southwire 25' 10/3 NM W/G Indoor Wire Orange?
- 4 stores we checked sell it, including Ace Hardware, Blain's Farm & Fleet, The Home Depot, Lowe's.