General
Nominal voltage	300/500 V
Test voltage	2000 V
Temperature range in motion	-25 to +180 °C
Temperature range, non-operating	-40 to +180 °C
Short-term temperature	+250 °C
Bending radius when free-laid	6 x cable diameter
Bending radius for flexible use	12 x cable diameter
Burning behaviour	Test method B (IEC 332-1)
Conductor marking	VDE 0293-308
Conductor	tinned copper stranded wire class 5
Wire insulation	Silicone rubber
Sheath	Silicone rubber
Colour	Red-brown
Flame retardant
Self-extinguishing
Halogen free

The silicone hose cable SIHF4G1.5 from böhm Kabel is a heat-resistant cable for movable connection applications in technical installations where high ambient temperatures occur. It is particularly used in the metallurgical, steel, and rolling mill industry, in packaging machinery, in safety technology, control, measurement, and regulation technology, as well as in cement, glass, and ceramic processing. It is also suitable for use in sauna construction and in heating, cooling, and climate technology due to its thermal resistance. The cable features a reddish-brown silicone rubber insulation and a sheath made of the same material, ensuring high flexibility and weather resistance. The conductors are marked according to VDE 0293-308, with black conductors numbered from six conductors onwards and the protective conductor colored green-yellow. The conductors consist of tinned copper stranded wire class 5, enabling high flexibility and longevity under frequent bending.

Heat resistance and temperature range
The cable is designed for operating temperatures from -25 °C to +180 °C when moved. For stationary use, the temperature range can be extended down to -40 °C. Short-term temperatures up to +250 °C are also permissible. These properties make the cable particularly suitable for applications in industrial environments with high thermal loads. The silicone rubber insulation ensures high thermal stability and prevents insulation failure at elevated temperatures.

Electrical properties and safety
The rated voltage is 300/500 V, with a test voltage of 2000 V. The cable is flame-retardant and self-extinguishing, according to test method B (equivalent to IEC 332-1), providing enhanced safety in fire hazards. The materials are halogen-free, minimizing the formation of toxic gases in case of fire. The good weather resistance also makes the cable suitable for outdoor applications, especially in combination with its thermal resistance.

Bend resistance and mechanical load capacity
The minimum bending radius is 6 times the cable diameter for free installation and 12 times for flexible use. These values ensure sufficient mechanical strength to protect the cable during frequent movements or bends. The use of copper stranded wire class 5 ensures high flexibility and extends the cable's lifespan under dynamic conditions.

Application areas and use
The cable is suitable for movable connection cables in industrial and technical installations where high temperatures and mechanical loads occur. It is used, for example, in the steel industry, packaging machines, safety technology, or climate technology. The reddish-brown color of the sheath facilitates visual differentiation from other cables in use.

Advantages in operation
The combination of heat-resistant silicone insulation, halogen-free materials, and high flexibility provides a reliable and safe cable solution for demanding environments. The self-extinguishing property and flame-retardant effect increase operational safety. The good cold flexibility allows use even at low temperatures, expanding the range of applications. The cable is designed for use in technical installations where high thermal and mechanical loads occur.