nVent RAYCHEM HAx Mineral Insulated (MI) Trace Heating Cables


Trace heating cables for frost protection and temperature maintenance up to 550°C

RAYCHEM HAx mineral insulated (MI) series resistance heating cables are used for frost protection and temperature maintenance of pipes and tanks/vessels for temperatures up to 550°C. When the cables are terminated by laser welding, the exposure temperature can go up to 1000°C.

HAx trace heating cables are available in single- and dual-conductorversions. Dual-conductor cables don’t require multiple cable runs and are therefore particularly suitable for instrument lines and other small pipes and reduce installation time.

  • Sheath material: Alloy 825
  • Continuous withstand temperature: 700°C (dependent on the splice used)

Key benefits:

  • Very robust
  • Suitable for high power outputs and temperatures
  • Also available in low resistances for long pipeline heating
  • Dual conductor version for small pipes and reduced installation time
  • Excellent corrosion resistance against organic acids, alkalis and stress corrosion cracking
  • Available with laser welded splice connections
  • Approved for use in hazardous areas
  • Fast track service for heating units
  • 10 years warranty available

TraceCalc Pro design software for safe design, product selection and advanced control and monitoring products complete the RAYCHEM HAx trace heating system.

RAYCHEM MI heating cables are offered as bulk cable and as pre-terminated heating units. Pre-terminated MI heating units are factory tested and can be directly installed in the field.

Technical Specifications

Sheath material Alloy 825
Construction Single conductor and dual conductor
Maximum power output 270 W/m** (typical value, depending on the application)
Nominal voltage U 0 /U 300/300 or 600/600 Vac (dependent on construction)
Maximum continuous withstand temperature 700°C*
Approved for use in
hazardous areas

For additional information, such as chemical resistance, refer to the product datasheet.

*Max power, voltage and withstand temperature are dependent on joining method. Refer to the datasheet


Warranty Information

Warranty Extension Available

RAYCHEM XMI Heating Cable System Installation

Connection and Protection