High-temperature resistant silicone cable HELUTHERM SiHF 4G25 mm² brick red, conductor identification acc. to DIN VDE 0293-308 23056

Silicone cable for extreme conditions

This multi-core HELUTHERM SiHF cable, with insulation made of special silicone, is designed for applications requiring high thermal resistance. Compliant with DIN VDE 0250 part 1 and DIN VDE 0285-525-2-83 / DIN EN 50525-2-83, this cable offers reliable operation in harsh industrial environments. Its construction provides flexibility and safety, and the absence of halogens in the insulation minimizes the risk of toxic gas formation in the event of a fire.

This cable stands out for its exceptional temperature resistance – from -60°C to +180°C, and briefly up to +220°C. This feature makes it an ideal solution for installations in places exposed to extreme temperature changes, such as industrial furnaces, steelworks, power plants, or metal processing plants. Additionally, high flexibility facilitates installation and routing of cables in tight spaces.

Construction and application

The HELUTHERM SiHF 4G25 mm² cable is characterized by a solid construction: multi-wire copper conductors (class 5), silicone insulation, twisted cores, and an outer protective sheath also made of silicone in brick red color. The cores are identified by colors in accordance with DIN VDE 0293-308, which facilitates correct connection. This cable is available in meters and has a cross-section of 25 mm².

Thanks to its properties, this cable finds wide application in:

• Power plants
• Steelworks and foundries
• Shipbuilding industry
• Cement plants
• Other industrial facilities exposed to high temperatures
• As a flexible connecting cable in places requiring resistance to extreme thermal conditions

Key features and benefits

• Wide operating temperature range: from -60°C to +180°C (briefly up to +220°C) – ensures reliable operation even in the most demanding conditions.
• High chemical resistance: resistant to oils, greases, acids, alkalis and oxidizing agents – guarantees long-term operation in an aggressive environment.
• Halogen-free insulation: increases fire safety by minimizing the emission of toxic gases during combustion.
• Flexible construction: facilitates installation and routing of cables in tight spaces.
• Compliance with standards: meets the requirements of DIN VDE 0250 part 1 and DIN VDE 0285-525-2-83 / DIN EN 50525-2-83 – confirms the high quality and safety of the product.
• Radiation resistance: withstands exposure to radiation up to 20 x 10⁶ cJ/kg (up to 20 Mrad).
• Rated voltage: U/Uo 300/500 V – enables use in various electrical installations.