POLYCAB Type NM-B (Non-Metallic sheath cable) is suitable to use in indoor residential wiring including branch circuit for luminaries, outlets and switches. It may be installed in both exposed and concealed work where such area is not subjected to excessive moisture or dampness. It’s applications are defined in NEC 2008 and NEC 2011 Article no 334 with ampacity limited to that for 60°C conductor.