Round Conductor Flat LSHF Cable HF447 Series

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3M™ Round Conductor Flat, LSHF Cable, HF447 Series is the world’s first ribbon cable to be independently certified by Underwriters' Labs (UL) as meeting the definition of a Low Smoke, Halogen-free cable*. It is intended for internal wiring applications where a crucial design consideration is reducing the risk associated with smoke and corrosive gases during a fire event. The cable has a temperature rating of -40 degrees to +90 degrees Celsius and a horizontal flammability rating per UL. It is constructed of 30 AWG solid wires within a polyolefin blend insulation on .025" (.0635mm) centerline. It is zippable for branching or discrete terminations. The solid copper conductor can be soldered to a printed circuit board for direct attach wire connections. The new HF447 Series also works with several popular half – or fine – pitch IDC connector platforms, including 451 Series, 820 Series and Mini Delta Ribbon (MDR) System from 3M.


  • 30 AWG solid conductors on .025” inch (0.635mm) wire spacing
  • LSHF polyolefin blend insulation* for reduced risk
  • UL LSHF Certified (the world’s first ribbon cable to be certified by Underwriters’ Labs (UL)
  • Broad operating temperature range, -40°C to 90°C
  • Zippable for branching or discrete termination
  • Tinned copper solid conductor for direct attachment to printed circuit boards
  • Available in 10, 12, 14, 16, 20, 24, 26, 30, 34, 36, 40, 50, 60, 68, 80 and 100 conductors
  • Low Smoke Halogen Free (LSHF) Insulation


  • Electrical
  • Industrial
  • Manufacturing