Silicone Cables

Silicone cables are flexible, heat-resistant cables engineered for continuous operation in environments with elevated temperatures and variable mechanical conditions. They are widely used in industrial automation, steel production, lighting systems, heating elements, renewable energy setups, and rail transport, where thermal and chemical resistance are vital for cable longevity and performance. ETK Kablo’s silicone-insulated cable portfolio provides a reliable solution for power and control applications under extreme ambient conditions.

Functional Purpose and Thermal Stability

Silicone cables are designed to maintain electrical integrity and insulation properties in both high and low-temperature environments. These cables perform reliably in continuous ambient temperatures ranging from –60°C to +180°C, with peak resistance up to +200°C for short periods. Their exceptional thermal endurance makes them ideal for equipment exposed to heat, radiant energy, and dynamic temperature cycles.

In contrast to conventional thermoplastic-insulated cables, silicone-insulated cables retain flexibility and mechanical stability without embrittlement or degradation. ETK Kablo’s silicone cable constructions are tailored for flexible wiring, movable connections, and

Electrical Characteristics and Environmental Resistance

ETK Kablo’s silicone-insulated cables are optimized for both power and control signal transmission in demanding industrial conditions. Standard performance attributes include:

• Rated Voltage: 300/500 V for control applications; 0.6/1 kV for power supply variants
• Test Voltage: Up to 2.0 kV AC, ensuring insulation robustness
• Thermal Class: –60°C to +180°C continuous operation; short-term exposure up to +200°C
• Flame Retardance: IEC 60332-1 compliant
• Halogen-Free: No emission of toxic or corrosive gases in case of fire
• UV and Ozone Resistance: For outdoor use or radiant-exposed installations

Even after extended exposure to heat or environmental stressors, the silicone insulation retains elasticity and dielectric stability. This ensures long-term operational reliability in systems where access is limited or maintenance intervals are long.

Application Areas and Industry Sectors

Silicone cables are used across a broad spectrum of sectors where standard PVC or rubber-insulated cables would fail due to thermal stress, motion, or chemical exposure. ETK Kablo’s silicone cable solutions are preferred in the following areas:

Steel and Foundry Industries

Silicone cables are used for power and control connections to equipment in furnaces, heat treatment lines, smelters, and rolling mills, where cable proximity to radiant surfaces is common.

Industrial Heating Systems

Powering and controlling infrared heaters, electric ovens, and industrial dryers, silicone-insulated cables maintain performance under high operating temperatures.

Lighting and Stage Equipment

In architectural lighting systems, stage effects, and theater installations, silicone cables provide flame-retardant, flexible, and low-smoke solutions suitable for confined or public spaces.

Railway and Rolling Stock

Used in locomotives and wagons, particularly for wiring near engines, braking resistors, or HVAC systems, where mechanical flexibility and thermal resistance are mandatory.

Renewable Energy Systems

Inside wind turbines and near photovoltaic inverters, silicone cables offer robust temperature endurance and insulation reliability despite continuous exposure to heat and vibration.

Motor and Transformer Connections

Internal wiring of electric motors, transformers, and magnetic coils benefits from the insulation stability and thermal integrity of silicone rubber cables.

Food and Pharmaceutical Facilities

Where hygiene and temperature resistance are both required, silicone cables withstand repeated washdown, steam exposure, and environmental sanitization without performance loss.

Flame Behavior and Material Safety

ETK Kablo’s silicone cables meet key fire safety and emissions standards. The absence of halogens ensures that, in the event of combustion, no toxic or corrosive gases are released, protecting nearby equipment, sensitive electronics, and human health.

The outer silicone sheath exhibits low smoke density and self-extinguishing behavior, which is particularly critical in enclosed public spaces, transportation systems, or machinery with electronic controls. Silicone rubber does not propagate flame and maintains structural integrity longer than many traditional insulation types during fire exposure.

Mechanical Durability and Flexibility

Beyond thermal resistance, silicone cables offer excellent performance under mechanical stress. The flexible conductor class and elastic silicone compounds allow repeated bending, vibration, and movement without conductor fatigue or insulation cracking.

This makes them suitable for:

• Cable chains and drag chains
• Movable machine parts
• Vertically suspended connections
• Compact control cabinets with sharp bending angles

Additionally, silicone maintains flexibility at extremely low temperatures, making these cables suitable for both cryogenic and arctic outdoor environments.

Product Range and Technical Variants

ETK Kablo’s silicone cable portfolio includes various cross-sections, core configurations, and sheath colors depending on application needs:

• Conductor Sizes: From 0.5 mm² to 25 mm² and higher on demand
• Core Count: Single-core and multi-core variants
• Color Coding: Cores numbered or color-coded per DIN VDE 0293
• Sheath Colors: Red, white, gray, or customer-specific colors for identification
• Variants:
  • SiHF – standard flexible silicone cable
  • SiHF-CY – shielded versions with tinned copper braid for EMI protection

Silicone cables offer a unique combination of heat resistance, mechanical flexibility, and flame-safe operation in environments where conventional cabling fails. ETK Kablo’s silicone cable portfolio—manufactured with precision and tested to international standards—delivers consistent performance in high-temperature industrial processes, public facilities, and transportation networks.

With options for multi-core configurations, EMI shielding, and halogen-free sheaths, these cables provide long-lasting functionality in sectors that demand both thermal resilience and operational safety. ETK Kablo continues to support energy, automation, and infrastructure industries with silicone-insulated cables that meet today’s engineering and safety expectations.