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Twisted MI cable against magnetic interferences

Thermocouple & Transmission cables for sensors in harsh environment and high magnetic interferences

Sensors manufacturer are looking for extension cables offering:
The lowest perturbation on sensor’s signal
A life time superior to the life time of the sensor itself.
If cable/sensor are exposed to adverse conditions like heat, fire, pressure, radiation or electro magnetic interferences, cabling solutions using organic compound do not offer sufficient life time nor maintain screening performance of measurement chain.

Turbines, large scientific instrument, fusion reactor, induction motors

Our nuclear experience initiated in the 50’s was the opportunity for a continuous improvement of the manufacturing technics of the Mineral Insulated cable.

As an answer to growing demand for cables insensitive to magnetic interferences, THERMOCOAX has developed a unique process to guarantee a steady twist of the cable conductors enhancing the EMC noise rejection characteristics.

A constant pitch of the twist of conductor pair cancel the induced currents and balance capacitances to ground..

The stainless steel sheath and –if required- additional layer of soft iron- provides a superior EMC screening than other cable systems.

twisted 5


  • Cable design tailored to meet customer’s demand
  • Built on specification
  • Single pair or multiple pairs
  • No impact on outer sheath metallurgy
  • No organic compound: no thermal or radiation ageing
  • Cost effective process compared to others technologies


Advantage of the twisted pair in high magnetic environment:

  • successive half-twists (pitch 2,5 cm / 1 inch) reduce magnetic noise by a factor higher than 100 compared to straight type
  • Balanced capacitances to ground

Thermocoax Isopad Heating Solutions for Drums Flexible Drum Heating Jacket Series IDR-G

isopad3Flexible Isopad Heating Jackets of Series IDR-G are easy to install around drums to warm up their content. They are insulated to provide the most efficient heat transfer. Therefore the heat is distributed towards the medium inside with less energy loss than most simple heating bands. In addition an optional flexible insulated cover from Isopad may be used for the top of the drum.

Rapid and direct heat-up times are generated through constant power output and digital control. Through the pre-installed controller unit on the jacket and the single power supply lead the heating jackets are a practical, flexible and space saving solution. The drum heating jackets are providing upmost efficiency at various application methods from frost protection to desired regulation of the viscosity of the medium.

Drum heating jackets are designed for use in ordinary areas (non-hazardous). The outer sheath is made of glass-fiber reinforced silicone which remains flexible yet sturdy. By using the right manufacturing method the design provides protection in wet areas of use (Ingress Protection up to IP65).

isopad4The heating jackets are installed using the Velcro tape which is mounted over the complete closure line. This method provides fast and easy installation with an optimum of fixation around the drum.

The materials used for the flexible drum heating jackets are suitable for operating temperatures up to 180°C. This operating range may be used for metal drums with suitable surface finish or paint. For drums made of plastic or composite we recommend a maximum operating temperature of 70°C depending on the material. For applications with lower performance ratings the power output may be reduced to save energy consumption.

The built-on controller unit junction box of the drum heating jackets is designed to provide direct adjustments of the control temperature as well as locking against use or change of settings. isopad5The housing is made of rigid plastic which provides protection against splashing water. After selection of the control temperature and other parameters the heating jacket can be operated using the ON and OFF main switch.

The heating jackets for drum are design mainly for use in industrial areas and shall therefore only be installed and operated by well trained staff and personnel.

Overview Product Features:

  • Fully insulated heating for best efficiency
  • Easy to use digital controller unit
  • Constant power output for rapid heat up times
  • For use on metal and plastic drums
  • Grounded heating element fulfills requirements to guideline 2006/95/EG
  • Regulation of viscosity
  • Frost protection
  • Maintaing temperature
  • Melting of solids
  • Warming up of Media
  • Thermal Mixing

Overview Technical Data:

  • Standard Sizes to fit drums of 200L volumes
  • Glass-fiber reinforced silicone outer sheath
  • 25 mm thermal insulation
  • Digital Controller with acoustic/optical alarm
  • Dielectric strength >2000 Volts
  • Flexible Power Supply Lead 1.8 m
  • Ingress Protection Level IP65
  • Electrical Protection Class I
  • Optional insulated cover for top


Thermocoax Isopad Heating Solutions Flexible Heating Cable Series FG200

isopad-whitepaperIsopad Heating Cables are already state of the art for most applications where easy installation processes are valued. Isopad has been a well know brand producing customized, high quality, factory terminated cables and tapes for decades.

Sometimes you just cannot determine the heated length needed for your application and you rather prefer to do-it-yourself. For this purpose we have now a new heating cable in our family of polymer insulated heating cables that may fit your requirements.

The new FG200 parallel constant wattage heating cable is a highly flexible and a cost efficient solution to maintain the process temperatures you need. It is easy to assemble and to install. It is available in different supply voltages and power output ratings.



Take a look at our new product data sheet to see the different product performance properties.

Overview Product Features:

  • Constant Power Output
  • Parallel Design for single side termination
  • Highly Flexible polymer construction
  • Braided versions for additional safety
  • Field Termination
  • Easy Assembly and Installation
  • Operating Temperatures up to 180°