High temperature resistant silicone wire HELUTHERM SiHF 24G1,5 mm² brick red, core identification according to DIN VDE 0293-308 23026

High-temperature silicone cable – reliability in extreme conditions

This 24-core HELUTHERM SiHF cable, with a cross-section of 1.5 mm², is a solution for demanding applications where standard cabling fails. Designed to operate in an extended temperature range, from -60°C to +180°C (short-term up to +220°C), it guarantees continuous operation even in the most extreme industrial conditions. The cable is characterized by high flexibility and resistance to external factors, making it an ideal choice for both installers and end-users.

Construction and properties

The HELUTHERM SiHF cable features an advanced construction ensuring long-lasting and safe operation. Made of stranded copper conductors, twisted according to DIN VDE 0295 class 5, it has high-temperature silicone insulation. The conductors are colored according to DIN VDE 0293-308 (up to 5 cores colored, above 5 cores – black with white numbering), and the protective conductor (available in a version with a protective conductor) is yellow-green. The whole is surrounded by a special, abrasion and chemical resistant silicone outer jacket in brick red color.

The cable meets the requirements of DIN VDE 0250 part 1 and DIN VDE 0285-525-2-83 / DIN EN 50525-2-83. It is halogen-free (according to VDE 0482 part 267 / DIN EN 50267-2-2 / IEC 60754-2), which increases safety in the event of a fire – during combustion it emits only SiO₂ (silicon dioxide). Additionally, the cable is resistant to radiation up to 20 x 10⁶ cJ/kg (up to 20 Mrad).

Applications and benefits

The HELUTHERM SiHF cable finds wide application in industries requiring high thermal and chemical resistance:

• Power plants: reliable connections in high-temperature environments.
• Steelworks, foundries: resistance to extreme working conditions and aggressive media.
• Shipbuilding industry: flexibility and resistance to moisture and corrosion.
• Cement plants: resistance to dust and high temperatures.
• Other industrial applications: everywhere where standard cables fail due to temperature or aggressive environment.

Thanks to its properties, this cable provides:

• Safety: the absence of halogens minimizes the risk of toxic gas formation during a fire.
• Durability: resistance to high and low temperatures and chemicals guarantees long life.
• Flexibility: facilitates installation and routing of cables in tight spaces.
• Reliability: ensures continuous operation even in the most difficult industrial conditions.
• Chemical resistance: high resistance to mineral oils, vegetable and animal fats, alcohols, acids and other chemicals.