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Belden 78 Ohm Twinax

Twinaxial Cable, 78 Ohm Cable
Belden

Twinax Ratings and Approvals:

  • UL AWM Style 2092: 300V, 60°C
  • UL AWM Style 2464: 300V, 80°C
  • Plenum-Rated: 200°C
  • Pennsylvania Department of Environmental Resources and United States Mine Safety and Health Administration Certification Spec: PMSHA P-7K-SC-182141 (select parts only)
  • NEC and CEC Ratings:
    • Non-Plenum: NEC Type CM Cable or CM, CL2 Cable; CEC Type CM Cable
    • Plenum: NEC Type CMP Cable; CEC Type CMP FT6 Cable

Twinax Construction:

  • Conductor: 20 AWG Stranded Tinned Copper
  • Insulation:
    • Non-Plenum: Polyethylene
    • Plenum: FEP Teflon
  • Jacket:
    • Non-Plenum: Blue PVC or Sunlight Resistant PVC
    • Plenum: Blue FEP Teflon
  • Color Code: Blue, Clear
  • Shield: Tinned Copper Braid Shield (93% Coverage) or Beldfoil (100% Coverage) with Tinned Copper Braid (55% Coverage)

Twinaxial Cable Applications:

  • Belden’s plenum-rated 78 Ohm Coax part is suitable for aerial applications when supported by a messenger wire.
Part Number AWG SizeConductor StrandingNom. Dia. of Cond.Nom. DCR of Cond.Dielectric (in)Nom. O.D. (in)Nom. Imp.Nom. Cap. (pF/ft)Approx LBS/MFTNom. DCR of Shld.
9272 20 7/28 0.038 9.5O/M' 0.156 0.2440 78 19.7 40 3.4O/M'
89272 20 7/28 0.038 9.5O/M' 0.148 0.1980 78 18.4 38 3.9O/M'
9463 20 7/28 0.038 9.5O/M' 0.154 0.2380 78 19.7 39 4.1O/M'