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Southwire Romex SIMpull Type NM-B is nonmetallic-sheathed copper building wire for indoor residential branch circuits, rated 600V with ampacity limited to 60°C conductors per the NEC. The 14/3 version carries three insulated conductors plus a bare ground, which makes it the usual choice for circuits that need a traveler or a second hot, such as three-way switches, split receptacles and smoke-detector interconnects. Its patented SIMpull jacket is the main selling point: the jacket is formulated to slide through framing and strip cleanly, which is why electricians favor it over generic NM cable. It is dry-location, above-ground wire only, so it cannot go in wet areas or buried conduit, and 14-gauge copper is limited to 15-amp circuits.
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Lowest price we've seen: $28.99 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Electricians and DIYers consistently praise the SIMpull jacket for pulling through studs and boxes with less friction and for stripping cleanly. Complaints center on the short length and on the stiffness of the solid conductors in tight boxes.
Southwire Romex SIMpull Type NM-B is a nonmetallic-sheathed copper building wire for residential wiring. It serves as a branch circuit cable that powers switches and outlets. This listing is for a 25 ft length of 14/3 cable.
The patented SIMpull cable jacket is designed for easier pulling and stripping during installation. The cable can be used for both exposed and concealed work in dry locations. It can also be run through air voids in masonry block or tile walls, as long as those surfaces stay free of moisture.
It is for above-ground installation in dry locations only. Ampacity is limited to that for 60°C conductors, as specified in the National Electrical Code (NEC).
