- What is 8/3 NM-B cable used for?
- It feeds 40-amp, 240V circuits such as electric ranges, cooktops and subpanels. It is for dry indoor locations, including air voids in tile walls.
- Does 8/3 NM-B include a ground wire?
- Yes. It has three insulated conductors plus a bare ground wire, so it can serve circuits that need a neutral and a ground.
- Can 8/3 NM-B be used outdoors or in wet areas?
- No. NM-B is rated for dry indoor applications only. Use UF or another wet-rated cable for outdoor and damp locations.
- What is the difference between 8/3 and 8/2 NM-B?
- 8/3 adds a third insulated conductor, giving you a neutral for 120/240V appliances. 8/2 has two insulated conductors plus ground and suits pure 240V loads that need no neutral.
- Is the wire solid or stranded?
- The conductors are 7-strand copper, which is more flexible and easier to pull than solid 8-gauge wire.
- What are the electrical ratings?
- It is rated 600V with an allowable ampacity of 40 amps, with PVC insulation 35 mils thick.
- Where is the 8/3 Copper NM-B Non-Metallic Sheathed Cable, 1000 ft Reel cheapest?
- At Echo Electric, for $2,726.36, 18% under what the other stores charge, as of our latest check.
- Where can I buy the 8/3 Copper NM-B Non-Metallic Sheathed Cable, 1000 ft Reel?
- 3 stores we checked sell it, including Echo Electric, City Electric Supply, Nassau National Cable.