Continuous-Flex Low-Smoke Halogen-Free CAT 6A Railway Ethernet Cable
This continuously flexible CAT 6A railway Ethernet cable is developed for repeated bending in moving train equipment and protected exterior installations. Four twisted pairs, a flexible halogen-free insulation system and combined foil-and-braid screening support high-performance transmission, electromagnetic compatibility and reliable service under demanding environmental conditions.
Key Highlights
Continuous-flex CAT 6A cable · Railway-oriented construction · Four twisted pairs · Low-smoke halogen-free materials · Foil-and-braid screening · Good EMC characteristics · Oil and fuel resistance · Outdoor installation capability · Ozone, UV and weather resistance · −40°C to +90°C flexible range · 15 × diameter continuous-flex radius · Suitable for EtherCAT and EtherNet/IP · Optional M12 or RJ45 assemblies · PFAS-free material option
Designed for continuous-flex CAT 6A data connections in rail vehicles and transportation systems.
Typical applications include:
- Moving railway door systems
- Flexible connections inside passenger vehicles
- Protected routing near bogies
- Onboard communication networks
- Passenger information and entertainment systems
- Surveillance and monitoring equipment
- Electronic ticketing systems
- EtherCAT and EtherNet/IP networks
- Equipment exposed to oil, fuel, ultraviolet radiation or weather
The cable is appropriate for continuous bending under light and medium mechanical stress. Torsional use requires a separately tested cable construction.
Pre-assembled M12 and RJ45 versions can be manufactured on request.
Conductor: Fine-stranded bare copper
Core insulation: Special low-smoke, halogen-free flexible compound
Core identification: White-blue/blue, white-orange/orange, white-green/green and white-brown/brown
Pair formation: Individual cores twisted into four pairs
Overall stranding: Four pairs laid together
Wrapping: Foil
Overall screen: Aluminium-laminated foil and tinned-copper wire braid
Outer sheath: Special low-smoke, halogen-free continuous-flex railway compound
Standard sheath color: Green, similar to RAL 6018
Cable shape: Round
| Pair Configuration | Maximum Insulated Core Ø | Approx. Outer Ø | Copper Weight | Approx. Cable Weight |
| 4 × 2 × 24 AWG | 1.29 mm | 7.9 mm | 42.2 kg/km | 80 kg/km |
| 4 × 2 × 26 AWG | 0.99 mm | 6.5 mm | 29.7 kg/km | 56 kg/km |
Final diameter tolerance must be confirmed against the approved production drawing. Other conductor sizes, sheath colors and customized assemblies are available on request.
THE FACTORY
BEHIND EVERY METER
Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.
Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.
Source Factory
Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.
Deep Customization
Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.
7-Day Sampling
Rapid samples for new specifications. 15-day lead time on standard production orders.
Global Compliance
35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.
BEFORE YOU ORDER
For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.
Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.
Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.
Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.
Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.
SEND US YOUR
SPECIFICATION
Tell us your core count, cross-section, and application — our engineering team will confirm the right configuration and send pricing within one working day.
Your information is used only to prepare your quotation and is never shared with third parties.
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