Signal and Control Cables

Signal and control cables are fundamental components in modern low-voltage communication and automation systems, used for the reliable transmission of analog or digital signals between devices, control units, and instrumentation systems. These cables are particularly important in environments where electrical signals must remain stable, clear, and interference-free. ETK Kablo’s portfolio includes internationally recognized cable types such as LIYCY, LIYY, LIHH, and LIHCH, designed for use in industrial automation, HVAC systems, data monitoring networks, and process control equipment. Engineered in compliance with VDE 0812 and IEC standards, these cables provide optimal performance in both fixed installations and flexible routing applications within dry, protected environments.

Cable Construction and Material Properties

Each signal cable produced by ETK Kablo is constructed with fine-stranded bare copper conductors conforming to IEC 60228 Class 5. This structure enables high flexibility and facilitates integration into tight spaces such as control cabinets and junction boxes. The insulation material varies by cable type: LIYCY and LIYY models utilize polyvinyl chloride (PVC) for general-purpose signal applications, while LIHH and LIHCH models incorporate halogen-free, low-smoke compounds to meet stricter fire safety regulations. Core identification follows DIN 47100 color-coding or number-coding schemes, depending on the specific application and user preference.

Shielding Capabilities and Electromagnetic Compatibility

Shielding is another critical design aspect. LIYCY and LIHCH signal cables feature a tinned copper braided screen with a typical optical coverage of 85% or more. This shielding provides effective protection against electromagnetic interference (EMI), making these cables suitable for use near high-voltage circuits, frequency inverters, or other EMI-generating equipment. In contrast, unscreened versions like LIYY and LIHH are used in environments with low electromagnetic noise, offering a more cost-effective solution when shielding is not required. All variants are finished with an extruded outer sheath—PVC for standard applications, or halogen-free thermoplastics for enhanced fire performance—most commonly in RAL 7035 grey, although other colors are available upon request.

Electrical and Flame-Retardant Performance

In terms of performance, all ETK Kablo signal and control cables are rated for 300/500 V with test voltages up to 1.2 kV AC. They are operational in a wide temperature range, with fixed installation tolerances between -30°C and +70°C for PVC models, and down to -40°C for halogen-free versions. Flexing temperatures range from -5°C to +70°C depending on insulation type. Flame retardancy is ensured by compliance with IEC 60332-1-2 for all types, while halogen-free variants like LIHH and LIHCH also meet IEC 60332-3 for flame propagation, IEC 60754-1/2 for halogen content, and IEC 61034 for smoke emission.

Application Areas by Cable Type

ETK Kablo’s signal and control cables are tailored to specific applications based on their structural characteristics. LIYCY cables, for instance, are widely used in process control, sensor and actuator connections, audio systems, and signal transmission lines in EMI-sensitive environments. LIYY cables are preferred in general-purpose signaling where electromagnetic shielding is not required, such as internal wiring in control panels or instrumentation devices. LIHH cables are selected in buildings with strict fire safety requirements—such as hospitals, schools, and office complexes—due to their halogen-free and low-smoke construction. In situations that demand both EMI protection and low-toxicity behavior during combustion, LIHCH cables provide a reliable balance of shielding and safety, making them ideal for use in public infrastructure, transportation systems, and pharmaceutical environments.

Sectoral Use and Project Suitability

These cables are essential for maintaining clear signal transmission in sectors such as industrial manufacturing, renewable energy monitoring, HVAC automation, and smart building systems. In process automation facilities, they connect programmable logic controllers (PLCs) with sensors, transmitters, and actuators. In building management systems (BMS), they support fire alarms, access controls, and lighting control networks. In cleanrooms and sensitive electronic environments, halogen-free shielded cables prevent both signal interference and toxic gas emission in case of fire.

Standards and Quality Compliance

All products are manufactured in ETK Kablo’s ISO 9001 certified facilities under strict quality control. The company performs dimensional checks, conductor resistance tests, insulation and high-voltage testing, shielding continuity assessments, and flame performance evaluations on each production batch. All cables are compliant with RoHS and REACH directives and may be optionally supplied with CPR classification for construction projects requiring European fire performance classes (e.g., Eca or Cca ratings).

Product Range and Configuration Options

The product range includes conductor sizes from 0.22 mm² to 1.5 mm², and core counts from 2 up to 60 and beyond depending on configuration. Standard core identification is offered via DIN 47100 coloring or number-coded systems, with or without a green-yellow protective conductor. Cables are available in both screened and unscreened versions, with packaging options including coils, drums, and custom-cut lengths to suit the logistical requirements of OEMs, panel builders, and export distributors. Sheath colors and core configurations can also be customized for project-specific demands or system-wide identification.

Export Readiness and Project Integration

With a wide supply capacity and export reach extending to over 120 countries, ETK Kablo supports global clients in sourcing consistent, reliable signal and control cables for projects in automation, infrastructure, and industrial communication systems. Whether supporting OEM machine builders, BMS integrators, or industrial energy developers, ETK Kablo’s cable solutions meet stringent quality requirements and ensure long-term performance stability in both critical and routine signal transmission applications.

Signal and control cables are a foundational part of modern electrical infrastructure, enabling precise, uninterrupted communication between components in industrial and building environments. ETK Kablo’s range of LIYCY, LIYY, LIHH, and LIHCH cables offers a technically robust portfolio for use in low-voltage control, analog signal routing, and EMI-sensitive systems. Manufactured to international standards and optimized for mechanical flexibility, electrical reliability, and environmental safety, these cables serve as dependable signal transmission backbones for control systems across a wide range of industries.

Control Cables — Frequently Asked Questions

What is the difference between signal cable and control cable?

A signal cable is designed to transmit low-level analog or digital signals with minimal interference, typically for instrumentation or sensor applications. A control cable, on the other hand, transmits on/off or command signals that control machinery, actuators, and automation equipment. In short, signal cables prioritize accuracy and shielding, while control cables emphasize reliability, flexibility, and mechanical strength.

What is a YY control cable?

A YY control cable is an unscreened, flexible cable used for signal and power control in industrial machinery, conveyors, and assembly lines. It is constructed with PVC insulation and sheathing, offering flame-retardant and oil-resistant performance. YY cables are ideal for dry and damp indoor environments where electromagnetic interference (EMI) is minimal.

What's the difference between YY and CY cable?

The main difference lies in shielding. YY cables are unscreened and used in areas with low EMI exposure, while CY cables include a braided tinned copper screen to protect against electromagnetic interference. CY cables are preferred near frequency converters, servo drives, or electrical panels where noise immunity is essential.

What is the most common control cable size used?

The most common control cable conductor sizes are 0.75 mm², 1.0 mm², and 1.5 mm², depending on the signal type and control circuit load. These sizes provide excellent flexibility and current-carrying capacity for most automation and industrial control applications. ETK Kablo also offers control cables up to 16 mm² and multi-core configurations up to 50+ cores for complex systems.