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Southwire Romex SIMpull 12-3 is nonmetallic-sheathed branch-circuit cable with three 12 AWG copper conductors plus a bare ground, rated 600 volts. The SIMpull jacket is made to slide through framing and conduit bends with less effort than standard NM-B sheathing. It is UL listed to 719 and 83 and meets NEC, ASTM and federal spec requirements. It suits residential wiring of 20-amp circuits where a three-conductor run is needed, such as multiwire circuits or switched loads.
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Lowest price we've seen: $39.95 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Electricians who use Romex SIMpull generally rate it as dependable, code-compliant branch-circuit cable, with the slick jacket cited as the main practical advantage over older NM-B. Complaints center on stiffness in cold weather and the price premium of three-conductor stock.
Southwire Romex SIMpull Type NM-B cable is a 600-volt nonmetallic-sheathed cable with copper conductors. This 12-3 version has three insulated conductors and a bare ground wire. Its SIMpull jacket is designed for easier pulling, which makes installation easier.
The conductors are annealed (soft) copper, and stranded conductors are compressed stranded. The conductor insulation is 90°C-rated PVC with a nylon jacket. The jacket is color-coded for quick size identification, and 12 AWG cable has a yellow jacket.
NM-B cable is used for exposed and concealed work in normally dry locations. It is primarily used in residential wiring as branch circuits for outlets, switches and other loads. It may be run in air voids of masonry block or tile walls that are not wet or damp locations. Operating temperature must not exceed 90°C, with ampacity limited to that for 60°C conductors, as specified in the National Electrical Code.
