- What circuits is 12/2 NM-B used for?
- It is for 20-amp, 120-volt branch circuits: kitchen counter receptacles, bathrooms, laundry, garage outlets and dedicated appliances. It is not for 240-volt dryers or ranges, which need heavier cable.
- Can this cable be used outdoors or buried?
- No. NM-B is for dry, interior locations inside walls, floors and ceilings. Outdoors, in wet spots or underground you need UF or another rated cable.
- Does it include a ground wire?
- Yes. It has two insulated conductors plus a bare copper ground, which is what the W/G in the name means.
- How does 12/2 differ from 14/2?
- 12/2 has thicker copper for 20-amp circuits; 14/2 is for 15-amp circuits. The yellow jacket marks 12-gauge, white marks 14-gauge.
- Can I run it in conduit?
- Only where the code allows NM-B in conduit, typically short sleeves for physical protection indoors. It is not rated for wet or outdoor conduit.
- How many boxes will 15 feet reach?
- Plan roughly 15 feet of actual cable path, not room length. Account for slack at boxes and bends; a single wall run with two boxes often uses most of it.
- Where is the Southwire 15 ft. 12/2 Solid Romex SIMpull CU NM-B W/G cheapest?
- At The Home Depot, for $33.00, as of our latest check.
- Where can I buy the Southwire 15 ft. 12/2 Solid Romex SIMpull CU NM-B W/G?
- 4 stores we checked sell it, including The Home Depot, Walmart, Ace Hardware, Lowe's.