Thick Wall Duct: Microduct Assembly, Heavy-duty, 16/12 mm with Tracer. TWD, Heavy-duty, 16/12 mm 2-4 -way Tr, S12

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Regular price $0.00
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TWD, Heavy-duty, 16/12 mm 2-4 -way Tr, S12

  • Extra Heavy-duty design for direct buried installation
  • UV protected for above ground use
  • Double sheathed
  • 2 or 4 sub-duct options
  • 16/12 mm microduct system
  • Low friction rilled inner surface for maximum installation lengths
  • Integrated tracer wire


      The tight protected duct assemblies consist of a number of microducts with an inner low friction surface that enables air-blown installation of fiber optic micro cables. The inner surface of the microducts have longitudinal grooves for improved blowing performance.

      The duct assemblies are bundled with double UV-resistant PE sheaths. This makes the ducts extra durable for direct installation into ground or above ground installation. The ducts are suitable for installation of micro cables.

      The duct is classed for above ground and underground use according to heavy duty application norm SRE-P.


      The duct assemblies are available in several configurations from 2 to 4 microducts.

      16/12 mm microducts are optimized for installation of micro cables and nano cables. The microducts have a low-friction innner surface with longitudinal grooves for best blowing performance.

      The tracer wire is made of an isolated copper wire, 18 AWG.

      Product Information

      Microducts and outer sheath: HDPE

      Tracer Wire

      Microduct assemblies: 18 AWG (0.8 mm²)
      Material: Isolated, stranded copper

      Technical Information

      Color Code S12
      Temperature, Operation [°C] -40 to +60
      Temperature, Storage [°C] -40 to +60
      Temperature, Installation [°C] -20 to +50

      Abrasion: IEC 60794-1-2-E2B(1)
      Kink: IEC 60794-1-2-E10, 20 x outer diameter
      Impact: IEC 60794-1-2-E4
      Crush: IEC 60794-1-2-E3
      Tensile: IEC 60794-1-2-E
      Bend: IEC 60794-1-2-E11A
      Torsion: IEC 60794-1-2-E
      Flexibility: IEC 60794-1-2-E8
      Inner Clearance: IEC 60794-5-20, IEC 60794-5-10, Ann. D
      Protection: SRE-P

      Marking Duct assemblies have markings showing the tube length. The individual microducts are numbered and also identified by their color and position in the bundle according to the S12 standard.