Multiconductor, Electronic Multi-conductor, Foil Shielded, Conductor Type Stranded, Number of Conductors 2, Conductor Color Code Table Number 6, Voltage 600, Color Gray, Stranding 19/0.0147, Insulation Premium Grade Polyethylene, Temp. Range -4 Degrees to 167 Degrees F, Jacket Material PVC, Application Designed for Recording Studios and Sound Systems, NEC Article 725, CL2 Electronic CableNEC Type CM and CL2, Foil Shielded, MulticonductorShield is aluminum/polyester Flexfoil . Insulation is premium-grade polyethylene, except polypropylene on 2W984 and premium-grade, color-coded PVC on 4DNZ1. 4DNZ1 is for audio broadcast and sound and instrumentation systems. 2W983 is type CL2 only. 4DNY8 and 4DNY9 are also CMH. 4DNZ1 is also CMG. Designed for industrial equipment control, recording studios, and sound systems.UL and C-UL Listed.Fully annealed, stranded tinned copper conductors per ASTM-B-33 Passes UL 7000 Btu Vertical Tray Flame Test