Electric heating cabel Hornisse 3,6mm (127,5m)

Product detailed description

This electric heating cable is commonly used in screed-based underfloor heating systems in residential homes, apartments, offices and service areas. Installers typically integrate it beneath flooring materials such as tiles, panels or stone. The system is designed to provide even heat across the entire floor surface, eliminating cold zones and ensuring thermal comfort. It is particularly suitable for rooms requiring additional heating, such as near windows, balconies or in bathrooms.

The cable is laid directly onto a 3.6 mm screed layer, allowing for easy concealment beneath various floor coverings. Its flexible design enables quick and straightforward installation, even in hard-to-reach areas. The system operates at 230V with a power output of 18 W/m, making it compatible with standard electrical systems found in most European buildings. The cable is constructed with fluoropolymer insulation and a PVC outer sheath, providing durability and resistance to mechanical damage and environmental factors.

Technical parameters

Installation and connection

Installation begins with laying the cable directly on a 3.6 mm screed layer, ensuring even spacing to maintain uniform heat distribution. The cable must be fixed securely to prevent movement during the screed pouring process. The recommended minimum bending radius is 50 mm to avoid damaging the cable insulation. After positioning, the power cable is connected to the electrical supply using a standard junction box. The system must be grounded via the braid to ensure safety.

Key checkpoints include verifying the cable's resistance before and after installation, confirming the correct spacing and ensuring the grounding connection is secure. To prevent these issues, follow the manufacturer's guidelines and conduct all electrical checks before covering the cable with screed or flooring.

Compatibility and accessories

This cable is compatible with standard underfloor heating control systems that operate at 230V. Additional components such as thermostats, temperature sensors and junction boxes are required for full system functionality. The Hornisse range includes cables with varying lengths, such as the 15m, 22.2m, 37.8m, 44.4m, 61.1m, 67.8m models, which can be selected based on the specific heating requirements of the space. Ensure all components are sourced from the same manufacturer to maintain system integrity and performance.

Technical background for designers

The cable operates on resistive heating principles, converting electrical energy into heat through the resistance of the conductor. The fluoropolymer insulation provides high dielectric strength and thermal stability, while the PVC outer sheath offers mechanical protection and resistance to moisture. The cable is designed for integration into screed layers, where it transfers heat efficiently to the surrounding material and then to the room. Long-term performance depends on proper installation, correct spacing and adherence to recommended operating temperatures. The cable’s flexibility allows it to conform to irregular floor shapes, enhancing adaptability in complex installations.

Service and operation

Ongoing maintenance involves periodic checks of the cable’s resistance and insulation integrity to detect any potential faults. The system should be monitored for signs of overheating or irregular heat distribution, which may indicate installation issues or component failure. While no scheduled service intervals are specified, regular inspections are recommended to ensure continued safe and efficient operation. In case of suspected faults, the system should be disconnected and inspected by a qualified technician before further use.

Frequently asked questions

Can this cable be cut to custom lengths?
No, the cable is manufactured in fixed lengths and cannot be cut or modified. Each model is designed for specific applications and must be selected based on the required heating area.

Is the cable suitable for installation in wet areas such as bathrooms?
Yes, the cable is protected against moisture due to its PVC outer sheath and fluoropolymer insulation, making it suitable for use in bathrooms and other areas with higher humidity levels.

What is the maximum operating temperature of the cable?
The cable is rated for a maximum operating temperature of 45 °C. Exceeding this limit may affect the insulation and reduce the cable’s lifespan.

How is the cable grounded?
The cable features a grounding braid that must be connected to the earth terminal of the electrical system. This ensures electrical safety and minimizes the risk of overloading or insulation breakdown.