Now you can tell CerroMax 3-conductor NM-B from 2-conductor at a glance. The power of color makes it better for inspectors, too. When you see light blue CerroMax NM-B, you know its 14-3. Work smarter, not harder. CerroMax's new and improved SLiPWire technology is an innovation for a faster, easier pull. This 600-Volt, grounded, jacketed NM-B cable from Cerrowire is used primarily in residential wiring, including branch circuits for outlets, switches, appliances, etc. It can be installed in both exposed and concealed work in normally dry locations and in air voids of masonry block or tile walls that are not subject to excessive moisture or dampness. The insulation is rated 90°C, and the overall cable is limited to 60°C ampacity per the NEC. In 4 conductor cables, the added circuit is for use primarily in residential wiring for branch circuits supplying outlets that require a separate neutral, such as AFCI protected outlets.