Southwire Romex® Brand SIMpull® (nonmetallic-sheathed) Type NM-B Cable may be used for both exposed and concealed work in dry locations with ampacity limited to that for 60°C conductors as specified in the National Electrical Code® (NEC). The Romex Type NM-B Copper Building Wire is revolutionizing installation with its patented SIMpull Cable Jacket, ensuring effortless pulling, stripping, and setup. A staple in residential building wiring, this cable serves as a reliable branch circuit, effectively empowering switches and outlets. Its application is exclusive to above-ground installation within dry environments, boasting a commendable 600-volt voltage rating that underscores its robustness. Notably adaptable, the NM-B cable can be seamlessly threaded through air voids in masonry block or tile walls, provided these surfaces remain untouched by moisture. This cable seamlessly marries advanced innovation with a commitment to quality craftsmanship.