Type NM-B ampacity limitation shall be in accordance with the 60ºC conductor temperature rating, as specified in the NEC. Equivalent to Romex NM-B. NM-B cables are LEAD FREE and RoHS compliant. Its applications are outlined in NEC 2008 and NEC 2011 Article 334.NM-B is rated at 600 volts and although it is rated at a conductor temperature of 90°C dry , its ampacity is limited to 60°C according to the NEC 2008 and NEC 2011.It may be fished through masonry or tile walls, where not exposed or subject to excessive moisture or dampness. NM-B 10/3 Copper w/Ground Non-Metallic Sheathed Branch Circuit Cable (250ft Coil Southwire Romex Brand Simpull Solid Indoor 14/3 W/G NMB Cable 50ft coil - SW# 63946822 - Electrical Wires Southwire's Romex® SIMpull® type NM-B may be used for both exposed and concealed work in normally dry locations at temperatures not to exceed 90°C Solid Copper Conductors/Solid Copper Ground Type NM-B is rated 600-volt for both exposed and concealed work in normally dry locations. Romex Lowe's 150 Ft 10/3 NM-B WG Wire/Cable Non-Metallic Romex 50 Ft
