Two KNX TP1 and CPR Cca certified models with LSZH sheath, designed for safe, high-performance and long-lasting automation and home control systems.
Cavel – Italiana Conduttori presents two new KNX-certified cables: CKNX180C and CKNX280C, developed for residential, commercial, and industrial automation systems.
Both models are entirely manufactured in Italy using premium materials to ensure maximum reliability, safety, and long-term performance stability.
Smart automation with KNX technology
The KNX standard is the international benchmark for the integrated and decentralized management of building systems: lighting, heating and cooling, security, blinds and shutters, energy control, and more. Thanks to its interoperability, KNX enables devices from different manufacturers to communicate with each other, allowing the creation of intelligent, efficient, and comfortable buildings.
Cavel enters the KNX market with over 55 years of experience in manufacturing cables for telecommunications, automation, and building technology systems. The CKNX180C and CKNX280C models represent the culmination of this expertise applied to modern building automation.
CKNX180C and CKNX280C: main features
The new Cavel KNX cables are available in two versions to meet different design and installation needs:
- CKNX180C – single pair, 5.8 mm outer diameter, ideal for standard applications.
- CKNX280C – two pairs, 6.6 mm outer diameter, suitable for longer runs or for simultaneous data transmission and power supply.
Both models feature:
- LSZH (Low Smoke Zero Halogen) sheath for maximum safety in case of fire;
- CPR Cca class compliant with European fire safety standards;
- Twisted Pair TP1 type certified according to KNX specifications;
- Excellent flexibility and mechanical strength, even in complex installations;
- 100% in-house production and quality control at Cavel’s Gropello Cairoli (Pavia) facility.
These features make Cavel KNX cables ideal for home and building automation systems in residential, commercial, and industrial environments.
Main technical data
The CKNX180C and CKNX280C cables share the same excellent electrical characteristics, with differences in dimensions and weight that make them suitable for different system configurations.
| Characteristic | CKNX180C | CKNX280C |
|---|---|---|
| CPR class | Cca | Cca |
| Inner conductor | 0.8 mm (bare copper) | 0.8 mm (bare copper) |
| Outer diameter | 5.8 mm | 6.6 mm |
| Number of pairs | 1 | 2 |
| Outer sheath | LSZH-FR | LSZH-FR |
| Approx. weight | 44.2 kg/km | 62.1 kg/km |
| Conductor resistance | 35 Ω/km | 35 Ω/km |
| Mutual capacitance | 67 pF/m | 67 pF/m |
| Dielectric strength | 1000 VDC | 1000 VDC |
| Attenuation | <15 dB @0.5 MHz <15 dB @5 MHz <95 dB @25 MHz |
<15 dB @0.5 MHz <15 dB @5 MHz <95 dB @25 MHz |
View the full technical data sheet of Cavel KNX cables
KNX transmission: performance and compatibility
The CKNX180C and CKNX280C cables comply with the KNX TP-1 (Twisted Pair Type 1) standard, allowing 9,600 bit/s communication between EIB and KNX devices on a single bus line. The CKNX280C model, thanks to its double pair, can also supply low-voltage power to devices, simplifying wiring and reducing system complexity.
Reliability and construction quality
Cavel manufactures every stage of production in-house — from copper drawing to pair formation and outer sheathing — ensuring complete quality control. This process guarantees traceability, consistency, and compliance with European standards, with continuous laboratory testing and quality checks on each production batch.
Cavel KNX cables are engineered to ensure:
- Signal stability over time;
- Resistance to mechanical and environmental stress;
- Long lifespan even in demanding installations.
Advantages of Cavel KNX cables
- KNX TP1 and CPR Cca certification
- LSZH halogen-free and flame-retardant sheath
- Available in one or two pairs
- High mechanical strength and installation flexibility
- 100% in-house production and quality control
- Compatible with all certified KNX devices
- Direct technical support for designers and system integrators
Customized solutions and in-house R&D
The Cavel R&D department can design and produce custom cables for specific applications or projects requiring particular technical specifications. This customization capability is an added value for designers and system integrators seeking a flexible and reliable technical partner.
Cavel: quality and expertise for building automation
With the new CKNX180C and CKNX280C KNX cables, Cavel expands its range of solutions for technological and automation systems, confirming its position as a strategic partner in the home and building automation sector. Experience, innovation, and reliability have driven every Cavel product for more than 55 years.
Discover the Cavel KNX range
For more information or to request technical data sheets and personalized consulting:
Contact the Cavel technical team
