Mineral Insulated Cable (MCU/MHC)

The MCU range of copper sheathed Mineral Insulated (MI) heating cable has been developed to meet the specific need for a cable having a high temperature cabability and electrical resistance values needed for long circuit lengths. To meet the requirement, Heat Trace combined a copper sheath with heating conductors to enable an operating temperature of 250ºC with resistance values from 1.7Ω/km up to 2000Ω/km per conductor. However, an HDPE outer sheath must be used when the cable is used in special situations, such as corrosion resistance or burying or snow melting application. HDPE jacketed copper-sheathed heating cables (MHC) have an operating temperature of 90ºC. MI cables have excellent strength and are resistant to corrosion. They are series resistance heaters which must be designed to provide the required heat output.

Example of Applications

  • Freeze protection of high exposure pipelines (e.g. steam manifolds)
  • Temperature maintenance of pipelines


  • Circuit lengths up to 5-6km
  • Suitable for single or 3 phase applications
  • Metal jacket for increased mechanical strength and fire resistance