The HF447/30 300'SF from 3M is a HF447 series round conductor flat, Low Smoke Halogen-Free (LSHF) ribbon cable. It has 30AWG solid conductors on 0.025inch (0.635mm) wire spacing, designed for mass termination and increased signal density. This LSHF polyolefin blend insulation features low smoke (IEC 61034-2:2005) and low toxicity of combustion gases (NF X 70-100-2:2006) reducing the risk to fire-fighters and low corrosivity of combustion gases (pH is approximately 6.0) reducing damage to nearby equipment.